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Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Next 15 Page(s) In Document Exempt Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved Releas4> ? t 2 1 '. $ 'O0%2 A003100040001-4 Fgp' 25X1 APf'~ IX I Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved Foorr Release 2003/12/04: CIA-RDP80-00936A003100040001-4 United States .1945 APPLICATION OF TIMOTM OF ABSOLUTE MACTION VELOCITIES TO CF EP OF METALS: Re. )derv, Phys. V. 17# pp. 48-49, June, S. Dus n. Approved For Release 2003/12/04: CIA-RDP80-00926A003100040001-4 Approved For Release 2003/12/04: CIA-RDP80-009BOA003100040001-4 United States 1945 CMF (F ETALS 0 James L. ]rickaon, Light Metal Age, 3 (1) PP. 22-23, 26-27. A general diveoux?ae on the phenomena of creep. Theories put forward by various Investigators are renewed and a bihliographu of 34 rc ferenCes is appended. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Release 2003/12/04: CIA-RDP80-0092OA003100040001-4 United States 1945 TJ;NSUE DDFOR!iATION, J. H. Hoil on, Trans. AV ?.,, Vol 162. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For$elease 2003/12/04: CIA-RDP80-00926y4003100040001-4 'fited States 194 PROPERTIES OF 5016 BINARY" SOLID SOLUTIONS OF RRI'9, Charles R. Austin, R. St. John and R. W. Lindsay, Metals Tech. V112, Aug. ?P. 1836, 22 pp. Describes ' results of isolating one microstruotural phases, naiely ferrite, and studying its creep characteristics in both the ur .lc d and alloyed conditions. Ihie should aid in establishing to a large degree the importance of ferrite in the creep behavior of steels consisting of the previously mentioned ferrite' carbide aggregate., Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved ForRelease 2003/12/04: CIA-RDP80-009i*A003100040001-4 United States 1945 CREEP PROPERTI]$ CF COLD DRAWN "MM MONEL AND =4N&, B. B. Betty, if. L. Eiselatein, azx F. P. Uston, Jr. Trans. Amer. Inst. Min. let. Eng. 1& pp. 4a-452. Creep data have been obtained for cold-drain and annealed Monel and Inconsi at temperatures between 800? and 1100??. Inconel has approximately twice the load--carrying capacity of Monel at any temperaturej, but Monell compares favourably with many low alloy steels so Or at creep performance is concerned. The tensile and Izod properties of the materials at troom est-piece temperature suitable for creep testing, are recorded and a type of round these alloys is described. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For RJase 2003/12/04: CIA-RDP80-00926A8&3100040001-4 United States 1945 3 AND ALLOYS, V. 21, P. 766, March, H. Adenstedt. Creep properties of aluninu-#. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved FokRelease 2003/12/04: CIA-RDP80-0092SA003100040001-4 CTERIITIC8 OF A PHO&PHORIZED COPP, H. L. Burghoff and A. I. Blank, . Inst. Min* Met. Eng. 161, pp. 42O--43$? The creep characteristics of capper wire (0.O0O8% of phsophorus( as an ealed to a grain size of 0.033 tea. and as dram to 84% reduction, are reported fora temperature of 300?, 40(1? and 500?'. The creep-resistance of the drawn wire decreases as recrystallization takes place. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 `nited States L II STIGkTION OF A L FORCED DISK OF L(1-CAMN -155 ALIDS, and I. G. Gross, National Advisory Committee for Aero utias W-103* c. 1945 41 F. The alloy container! 21.66% Cr, 19.40; Ni, 19.02% Co., 2.76% Mo, 1.90% W, 1.74; Mn.. O.79; Gb,. 0.37% Sip 0.15% C and 0.14% N2,, and was a tidied in the hot forged and stress-relieved oondition by means of stress-rIpture and creep taste for perioda up to 2000 hr. at 1200, 13502 and 1500?F. hoortr-time tensile test, impact teat,, and time vs. total deformation characteristics. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Re ese 2003/12/04: CIA-RDP80-00926AOW100040001-4 United States 1945 gnat I APPLICATION Cl NON F RROiE l .;TALE AND ALLO IN STRBBS D SIGN, J. J. sister, Trans. Asper. Inst. Mine Vat. Eng. 161 pp. 402-417, The creep characteristics of non-ferrous n.tala are briefly summarized, and a biblicgmphy and aeries of abstracts dealing with the topic are appended. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved FoLRelease 2003/12/04: CIA-RDP80-00924AO03100040001-4 states 1946 SUPER ALLO o MR I TR=H TE R TU SERVICE, Haro?j A. Knights Materials and 3 et~!ods, 23, pp. 1557-1563. A gene ial eu rvey, including brief referee es to nickel, cobalt, are chromium base alloys. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Release 2003/12/04: CIA-RDP80-00926Aa03100040001-4 United Statos 1945 TENSION "MS'S AT CONSTANT TRUE STRAIN RATES, C. W. Mftc3regor and J. C. Fisher,, J. applied tech. 12, pp. A217-227- Tension tests of the t!-i stress-strain type azr reported for which the true strain rate is maintained constant throughout each test. Snvpral nEtals (steel rut brans) are investigated under testing teMerature ranging from --183*C to 665 4C. The influence of temperature and strain velocity on the true stress-strain properties is described. A single variable called the velocity-modified temperature is used to represent the combined influences of true strain rate testing temperature. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For ReLoase 2003/12/04: CIA-RDP80-00926AGQ3100040001-4 ted Stalex 1945 PRO TIES OF SOME CAST COPPER-BASE ALLf AT ELEVATED TEMPERA .. Montgomery, Trans. Amer. Inst. Min. Met. Eng. 161? pp. 455.463. . Be A review of existing litamture on the high-temperature creep properties of oast Copper base anoys. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For4jelease 2003/12/04: CIA-RDP80-00926&003100040001-4 United States 1945 ON MEP OF N FERRAtTS No-MIS AND ALLOYS, H. L. Schumacher, and ghoff, (presiding). AI)ME, Trans. 1945, V. 161 pp. 401-477. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For ReJ$ase 2003/12/04: CIA-RDP80-00926AOA2100040001-4 rated States 1945 CREEP P R O P E F T I s O rS R?-,L9) L FAD AGONY ALL{ ,, A. A. Smith, Jr. and H. E. Fit e;, Trans. Am.er.. Inst. Min. Met s Eng. 161, pp 472'4+75. Alloys of lead containing antimony, bismuth, and co peer were cast and rolled to 0.1 in. thickness; 16 in. lengths of this material were then clamped together and creep testa oonducbd on the apecimene at 30? and 104?C. Approved For Release 2003/12/04: CIA-RDP80-00926A003100040001-4 Approved For Rase 2003/12/04: CIA-RDP80-00926AOW100040001-4 Wted States 1945 A NOTE ON T1 PHYSICAL PROPERTIES OF AN AtS'lENITIC ,D METAL AND ITS STRUCTURAL TRANSFORMATION ON STRAINING, K. Winterton, Welding Journal, V. 24, Nay, pp. 308X-310s. tests at elevated temperatures c a n composite 18-8 weld-plate tensile specimens,, showed thAt the tensile strengths yield strengths and hardness declined with increased testing temperatures. Effect of prior heat treatment at 8501?C. in causing increased tensile strengths and decreased meld strength,, decreased with testing temperature and was not apparent above 1%"C. M :croscopic examination shoved a bregkdown of dendritic regions to a light-etching alpha-constituent, and the formation of lines and blocks of a tch tng alpha-constituent,, probably due to uneven straining. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Re,se 2003/12/04: CIA-RDP80-00926A0fl100040001-4 ?d Mates 1945 r METALS FOR EGU T RRATURE SERVICE Industrial Heating, V. 12, July pp. 1209-10, 3 4, 1230. Ferrous metals for applications involving ressiet to high temperatures, end creep o recovery and relaxation of oxygen-free copper. Approved For Release 2003/12/04: CIA-RDP8O-00926AO03100040001-4 Approved For RejSase 2003/12/04: CIA-RDP80-00926A0G8100040001-4 United States 1945 C P DISTANT ALLOT STEM, Iron Age,, V. 156, Aug. pp. 38-63 Behavior of alloy steels at prolonged elevated temperatures shows that the addition of molybdenum to steel imparts high heat strength. Vanadium has a similar reaction in steel alloys but to a lesser degree. Comparative effect l other alloying agents like chromium, nickel, manganese and 83-"Con on phy .ca properties is also included. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For-$alease 2003/12/04: CIA-RDP80-00926M03100040001-4 nited States 1945 Creep Data on P- -?Ca st Zine. Alloy, E. H. Kelton, aM B. D. t singer, Trays. Amer . Inst. Min. Met. Eng. 161, pp. 466.44'71. A test method involving the bending of a die-cast zinc alloy beau is des- cribed. az d beam creep-test data at 250C and various stresses for a zinc die- cast any are presented. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Ra ease 2003/12/04: CIA-RDP80-00926AQ43100040001-4 n d States 1945 N:I CHINES Ft t CI P AND CRS" RUPTURE TESTS, M. J. Nanjoina, Trans. Amer. Soc.. Mech. Hhg* 67, pplll-116. Two new creep-rupture machines am described. One, a lover-aria creW shine, combines the eaompactztees of a multiple unit with the flexibility of an individual one. Each of the eight speeinens in the machine is equipped with an exte naometer which given the direct reading of the extension on a counter; these counters are photographed periodically, The other machine loads the men through a stiff spring and records a continuous creep-to-rupture curve without the use of an extensom,eter on the epecizen. Occupying an area of 15x15 in., this latter machine has a capacity of 10 tons. It can also be used for making short-tints tensile tests, constant-strain-rate tests, and relaxation tests, Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For elease 2003/12/04: CIA-RDP80-0092603100040001-4 Fngla nd 1945 E?FECT OF RL EL! BOMBARDMENT ON GLIDE IN METAL SINGLE CH!STAIS, E. Trade, Nature,, 156, pp. 113-114. Bombarding stressed single crystal wires of Cd with alpha ray$ from a strong polonium source, deposited on the inside of a nickel cylinder 1 cm. long, which is split longitudinally so that it can be made to surround the wire. The alpha-particles, which penetrate about .005 mra, into the metal, cause local disc uzance, but do not produce appreciable bulk heating. at the axis of the wire does not exceed ,o3:?C. When a wire is stressed .05% per min., bombardment with alpha-particles causes the rate of flow to increase to several time the value which obtained before the bombardment p 5 times in one particular case - although the wire Vas bombarded over only one third of its length. The wire had been extended by about 1% when the bombardment was initiated. In the case of another wire which had been extended 2.6% of its length, and was increasing its length at a rate of .21% per minute, bombardment increased the rate by about 3 times. The greater the preliminary extension, the smaller the effect of alpha- particles, until 12% of extension, no effect will be seen. Glide on particular planes can be initiated by alpha-ray bombardment, and hence that initiation of glide takes place from the surface. Once a particular plane is active,, glide continues at a rate independent of the surface distrubance, is ehonm by the fact that bombardment does not affect the rate after large preliminary strain when, presumably, all suitable glide planes are in action. The alpha-particle bombardment is,, then, a useful index to show whether glide is taking place by the activation of new glide planes or is continuing on planes aadyr in action. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Release 2003/12/04: CIA-RDP80-00926AM3100040001-4 France 1945 A COMPARISON OF SO CARBON ST ElS ON THE BASIS OF VARIOUS CREEP LIMITS, A. R. Johnson and R. J. Tapsell, Institution of Mechanical Engineers Proc. F. 153, War nergency Issue No. 6, p. 169-179. Report has been prepared with a view to determining 'whether any relation- 5hiP exists between the results of the various short-time and long-time creep ate, 'which will permit the was of short-time tests, not merely as a means ting good from bad steels, but also as the basis of design stresses nded to give satisfactory performance of the steel over working periods of considerable duration. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For$,elease 2003/12/04: CIA-RDP80-0092611003100040001-4 1945 SOME t'G,I1!1F NG PPROPERTI OF NICKEL AND HIGH NICKEL W. A. Mudge, Mech. Ing.r 67, (2), pp. 123-129. B. Betty and hteen high-nickel corrosion-resisting and heat-resisting alloys were examined. All shoved good mechanical, properties, as evidenced by a high ratio rength to ductility over a wide range of temperatures. Useful non-magnetic properties of six of these alloys are summarised. The electrical resistivity of most of the alloys is given, an the special use of to alloys for electical- treating units is indicated. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Re1wase 2003/12/04: CIA-RDP80-00926A00'8100040001-4 1945 CRS PROPERTIES CF STEELS UTILIZED IN HIGH PrE$9URE A HIGH TEMPERATURE SUPKR HEATER AND STEAM PIPE PRACTICE. PART Ili 0.5% MOLTB13ENUM STEELS, M. J. Tapsen and R. W. Ridley s, Institution of Mech. Engineers Proc. V. 153, War. Emergency Issue No* 6, pp. 181.192. Creep Properties of carbon nolybdenum steels in the form of a superheater header, superheater tube, and Steam PtW pipe a nufactured for service at to raWrea above about 450?C. Data for the eati ration of stress--teaperat relatonships for from 0.1 to 0.5% creep in various periods up to 100,0000 hra. Approved For Release 2003/12/04: CIA-RDP80-00926A003100040001-4 Approved For.Aelease 2003/12/04: CIA-RDP80-00926 003100040001-4 1940 THE "SET TEST' ELASTIC LICIT, A. C. Vivian, Harold G. Williams, M'et'allurgic 32 p. 152 ? W. describes the feet test" method using the electron micrometer for evaluating the material and heat-trestents for beryllium-copper precision springs, and states that, no matter how low the stress, there is some sets although for very tresses it may be beyond the sensitivity of the measuring instrument. For such stresses tests are carried out at a load below the "set test" elastic limit and a logarithmic drift or room-temperature creep curve is obtained over a period of 100 hr. The rate of drift obtained is used to evaluate the stability of the spring material in relation to the retention of calibration in instruments, as when springs are deflected within the usual elastic limits there are three elements in the subsequent strain, an elastic deflection, a permanent not not recoverable, and a drift or creep with time under load that is recoverable. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Reuse 2003/12/04: CIA-RDP80-00926AOW00040001-4 1945 port No.396 Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved ForWease 2003/12/04: CIA-RDP80-00926 003100040001-4 ITALY 194 ALLOY (' ALT EINUM FOR THE FU RY AND PLA$ IC WORKI1+ (reN) =inioj, 3.4 (9/12).s pp 76-90 (in Italian) . P. describes the preparation, heat-treatment.. structural properties, al properties (static and dynamic), and corrosion-resistance of a Lute of L ght Metals, Novara, Italy. The alloy, called IAN, has the chemical compositions copper 2-4, iron 0.5-1.8, silicon 0.4-2, magnesium titanium 0.025%, aluminum remainder, and is similar in most respect to Duralite, having the additional advantage of containing no nickel. Heat treatment gives it a fatigue resistance higher than that of Duralumin, and it has a high heat-resistance. Anoido or chemical oxidation,, 'Mellowed by varnishing, will protect it against corrosion. It is particularly useful for the fabrication of automobile parts subject to heat. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Reese 2003/12/04: CIA-RDP80-00926AOA,3100040001-4 j~nwr s wr,.. .tterland 1945 '\ 04-VL-1 TCUUGHNESS OF METALS AT HIGH TEMRATURES (TIN CADMIUM AID AND iegfried,. Schweiz Archix. 11, (11, 1945, 1-16 (2) 43-61). Attempt to correlate brittle behavior with some other mechanical property and shape of notch. Data on TinxCadmium, . Creep tests with both #moth and notched specimens of steel, attempt to correlate with Tin-Cadmium. Apparently metallurgical factors rr ecluded good correlation. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Rei ase 2003/12/04: CIA-RDP80-00926AO 100040001-4 i MW CF CR STALLINE BOD 5 CNER THE ACTION OF SURFACE TEMX J. Physics , 9, pp 385-391 (In Foglish),0 It is suggested that the viscous flow usually attributed to amorphous bodies,, which occurs by the motion of a small number of holes or cavities, may also take place in crystalline substances. In the letter east flow would proceed by the diffusion under stress of vacant sites of the crystal lattice. This is distinct from p3astio deform tion. The conception is developed Ltically, and applied to the rate of welding of crystalline powders, a temperatures below their malting points, into a crystalline body. The development of crystal faces on the surface of a spherically ground single rystal is also discussed from the same point of view, the common factor in each case being the reduction in surface energy caused by the change. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Reease 2003/12/04: CIA-RDP80-00926AOd3100040001-4 Ruaeia 1945 THE R:I TXON OF TIE SHAPES OF THE CURVES OF STATIC AND IMPACT STRENGTHS TO aO-CH fAL PROCESSES IN ALL015* L. M. revzec', Izveet. Akdd. Natzk SSSR 2--218, C. Abs. (1946) 40 2429. (in aian.- A di8eussion of the mechanical properties of alloy in relation to their chemical oampoeition, co itiew of thermal treatment, and the effect of cold and hod deform tion. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Relaose 2003/12/04: CIA-RDP80-00926A0a '00040001-4 1945 T HS 3CIRNIC&L PROPhRTIES CP COPPER AT HIGH TEMPERATURES, Bobylev. A.A. and chipizhsnko, Tsvet. MetaUy,, (3) pp. 62-65 ( in 'RussUm). Annealed wines, 6 mm. in dia., were tested at three rags of extension (1, 2 and 30= /min.) at temp. from 2CPC to ?C. With increase in the rate Of extension, the strength and plasticity of copper become greater. The deleterious affect of the. ambient atmosphere in acnt ected with its action on the grain boundaries, which results in the formation of intercrystalline cracks and leads to a sharp decrease in plasticity. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Release 2003/12/04: CIA-RDP80-00926A683100040001-4 1945 :?G MACHI iS OF T1 TsNIITMASh TYPE, I. VK Kvdryavtsev, Zavod. Lab. U pp. 209-234, (In Russian). New machinee f cr the tensile testing of metals as described. Approved For Release 2003/12/04: CIA-RDP80-00926A0031000400014 Approved For Rtease 2003/12/04: CIA-RDP80-00926AO03100040001-4 es 1946 PLASTIC FLAW OF META NJ. R. RoISomon and J. D. Lubahn; Physical Review, V. 70, No.9 p. 7'75* general relation connects all the variables of plastic flow; C D, E, and F are constants of the material;9 , E and T strain, strain rate and temperature respectively. This equation can be rewritten in logarithmic fate -41 o- - - 1, C - -44- E -7--4 N by comparing it to the relation between strain rate and temperature; the equation Is Q - -T1n "`;.!~ where l yin a function of stress and strain, and R is the gas constant. Q should vary linearly with the logarithm of the stress. This relation differs fundamentally from those of aver, Kauzaann, and Dushman. The relations in which the logarithm of the stress varies directly with the temperature, are confirmed by replotting data obtained by Redai and wine. The equation has important applications in the problem of creep and in the theory of plastic flow. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For lease 2003/12/04: CIA-RDP80-00926AO03100040001-4 united Staten 1946 7. t-k TIE MEC!I4I L EQUATION OF STATE, J. H. Hollomon, Male. Tech J., No. 6 A Inst. 3frtals. D1'v, Teeeh. Publ. No. 2034 9pp. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 +.s Approved For-Release 2003/12/04: CIA-RDP80-00926A003100040001-4 tatea 1946 NCZPX)) TEbPERA FOR TIC PLASTIC PLOW OF METAL{~S_Y, C. W. MacGregor Fisherl Jour, of Applied Mechanics, V. 1.3, No. 1, Mar^e p. A-11. Based on the vork of EyArig and others relating to the creep problem, a v`elooity-modified temperature is developed for representing by means of a single variable the combined effects of strain rate and temperature on the stress remotion in a tension specimen. Available data are analyzed, indicating that the velocity-modified temperature is equally applicable to the tension tests conducted at both slow and rapid rates and to the a reap test. The data also indicate that the stress reactions,, corresponding to tests at very slow and very rapid rates of deformation, be found from tension tests at moderate strain rates an 4prt priately raised or lowered temperatures. Approved For Release 2003/12/04: CIA-RDP80-00926A003100040001-4 M Approved For F Tease 2003/12/04: CIA-RDP80-00926AO03100040001-4 States 1946 PIASTIC FLOW, CM P AND SASS RELAXATION - I PLASTIC TUM, II CREIP, III CI P AND ELASTIC AFTER-X T, Charles Mack; Jour Appljwd Physics, V. 17? No. 12, pp. 1086.11+07. Plastic Flow - Plastic substances are considered to be composed of units of flaw iith~various yield values. Using Burger's model as a basis, b gives the stress as a povsr function of the strain rateor 3/9 W( ) s in which b is a constant, So and V are constants with dimensions of stress S and strain rate P. This equation applicable to systems in which the structural elements rein in a high degree of disorder. Ina terns possess ng a high state of order under stress, the equation exp (S/SO . exp (V/va)appears to be applicable. II. Creep - Creep is defined as a mechanism of deformation for systems which have a curvilinear relationship between stress and strain rate, and a curvilinear relationship between strain and time at constant stress. The relaxation of stress at constant strain is discussed. It is shown that the stress relaxation depends upon the history of the substance under test. Thixotropy is work-softening. II. Creep and Elastic After-Effect -- The elastic after-effect is the phenomenon in which deformations recover, as a function of time, on unloading. The relation between strain and time in such sye terns, and the process of stress relaxation at constant strain are diq cussed. Equations given in connection with plastic flow, creep due to work-*hardening, thixotropy, and creep in combination with elastic after-affects, are applicable to metals,, clay soil, food products, acrylic acid pclymertdee, polyvinyl chloride, cellulose acetate, manila ropes, paper laminates, phenolic molding compounds, rubber, asphalt and bituminous parents. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved ForWelease 2003/12/04: CIA-RDP80-00926AO03100040001-4 146 QU;NMIU"M ~~ tT THE METAIS BY DISLOCATION AND dory tkea~i.tte% e PROCESS TiI1~, A. S. owiek and E. Aere utics,r Report No. 845,, 10 pps. on for the steady-slate rate of creep is der ,ved by applying r ~ of dislocations to the creep of pure metals, he form of this ~.... _.~..._ equation is in agreement with empirical equations describing creep rates. The theory was also used to predict the dependence of steadgr-etate rate of creep on physical constants. Good agreement with literature data for pure nnea' .ed metals was obtained. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Release 2003/12/04: CIA-RDP80-00926A003100040001-4 kited States 1946 DEFCRMAILON IN T ETON TO RIY90 PR SSURE AND TE1 kATURE, P. O. Nutting, Jour. Prenklin Inst., V242, No. 6, pp. 449-4:8. Generali zed linear logarithmic relations between deformation, temperature and. pressure are derived from the equatins defining compressibility and thermal expaasivity? and are shown to apply to the three stages of deformation. Oibb's therm dynamic potential is shown to lead directly to a simple and exact expression for the energy of deforzration within any one phase. Thermodynamic relations governing elastic and viscous behavior are developed for both single and multiple phase materials. The equations are checked against experimental data can steel tape, which includes t rmal and relaxation observations. Approved For Release 2003/12/04: CIA-RDP80-00926A003100040001-4 ~Wo Approved For-Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 United States 1946 R JPTURE ty-a RACTERISTICS OF VARIOUS STEELS, IN STEAM AT 1200?F', J. T. agrmw, . !!awkinft, and H. L. Solberg; Trans. ASME, V. 68, p. 309. ecie s made from lour-carbon, carbonmoly, 2-1/4 Cr- 1 Nom i e sp . small *ene 18 Cr-8 Ni. 25 Cr-20 Ni, and 5 Cr-Mo-Ti steels -U-'q4 12 Cr C , r 9 # were placed in a steam reaction chamber at 1200?F and stressed in tension for periods of t ranging from 10 hr* to 7700 hr. &ta were taken on time to rupture, elongation, redaction in area, depth of scale layer; type study was m of flciw, an type and angle of fracture. A photcsaicrograp r of the rupture specimens. The straight-line relationship between stress and time to rupture on log-log co-ordinates postulated by White, Clark and Wilson for tests in air also holds for steam tests. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved Fern Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 United States 1946 SUPER-ALLOTS FOR HIGH TEMPERAT?1RE SERVICE IN GAS TURBINES AND JET ENGINES - A BMOSIUM, P. Badger, if. Cross, C. Evans, Jr., R. pranks, R. Johnson, N. Moohel, and G. Mohling Metal Progress, V. 50, No. 1, July, pp. 97-122? This is a report of a round table discussion on the materials for gas turbines and jet engines. The compositions, the operating characteristics, and the metallurgical aspects are thoroughly discussed. Many improved super-alloys for high temperature service are listed. Data are tabulated on the results of creep, stress-rupture and short time tensile tests] materials tested include both the forged and the cyst alloys, and are of the cobalt-chrome type, and of the iron base type. Test temperatures ranged up to 2QO0?F? The cobalt chrome alloys have the better short time prope r"ties, while the iron base alloys are generally better ibr longer service. Data on the fatigue props rties are included. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 states 1946 IOH-TEMPERATURE ALLOYS USED ON GREET 00 TURBINE DESIGNS, . sad*r, Jr. # and R. 0. Sweeny,, Jr. SMosix on Materials for Gas Turbines Amer* 'Soo* for Testing Mat.) p. 99.12, die. p. 121-125. . The two high-temperature a.1l.oys most widely used during World War II wet not developed as a result of the war program, but were available at the beginning of the war. These two alloys - one nic el-base and the other cobalt-base - used, with only slight modification, in equipment actually sled during the war. The developomt of these alloys, one wrought and one cast and their successful fabrication by forging and by precision Casting. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 w Approved Fo"elease 2003/12/04: CIA-RDP80-00926AO03100040001-4 1946 HIGH TEVERATR SERVICE, PART L, W. a. SSderp iron Age, T. 158, Nov. vp. 452, atione of msta1e and methods of evaluating Alloys for higteera- , comparing prmar alloys with those more recently developed. A is also made of the effeota of v+ari+ alleging eler in enhancing temperature properties. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved Fd?Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 'OR HIGH T ERAS SERVICE, PART II, W. 0. der, Iron Age, Y. 159, F, p. 92-9: Effects of strain hardening, heat treatumt, and 1n .tze control, in eking desirable qualities of the various mopes Of alloysfoor for high-teemae tvxe service are reviewed, anpported by quantitative test data. Importance of characteristics such as fatigue endurance, damping eapaci ty and ldab lity in determining the suitability of the alleys for use at elevated tet eratures. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved Folk elease 2003/12/04: CIA-RDP80-00926AO03100040001-4 ates 1946 COBALT BAST HIGH T ;MPERA ALL XSs L. 3. Browne (Steel, 118 (21) 88-91,1.32. Compositions of cobalt-base alloys are given together with tables of thermal- ion coefficient, age-hardening data, endurance propertiee,o short-time tensile propertess creep-test data, and average stress-rupture data. Casting methods and app1it Lion are briefly outlined. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Fie ease 2003/12/04: CIA-RDP80-00926AO03100040001-4 United States 19 MQUIRE2M SIX= FOR HIGH TEMPERILTUM $ERRVIC8, Claude L. Clark, Metal Progress$ r. 50, Nov. P. 897.403. Describes the present situation regards a series of chrmlium stools aonfiaining from 5 to 9% chromium. ftaluation of high-temperature strength on basis of either rupture or creep strenat l if application is one in which temperature rises continuously during operation, rupture strength is most stable basis. if temperature is constant then creep characteristics serve best. Approved For Release 2003/12/04: CIA-RDP80-00926A003100040001=4 Approved Fo lease 2003/12/04: CIA-RDP80-00926A003100040001-4 0-?1.,f. mited states 1946 vf,, At. t,. % ALL= AND CEPAMIC MkrERIALg FOR HIGH TMWERATME SERVICE, H. C. Cross, Symposiums Materials for Gas Turbines (Amer. Boo. Testing Nat.) p. 113-120. Progress r sport and an outline of the program for future work for the Office of Research and Xuventicngt U. S. Navy Dept. at Battelle Memorial Institute. EnginserAM properties of hiat-resisting allo t chromium-base alloy; funda- tore pramottng high-temperature strength of afoym; causes of cracking melds and ad jaoent parent metal.; ueldabilitr of beat -resisting aiioys j and fundamental. oWdLes of ceramic materials. Approved For Release 2003/12/04: CIA-RDP80-00926A003100040001-4 Approved For9please 2003/12/04: CIA-RDP80-00926 003100040001-4 ~Fy ~ P A Vh ted States 1946 C 4,11 HEAT RESISTING T&IS ?C US-TRUJRINR PARTS, Howard C. Cross and Ward F. Simmons, 8 posium or, materials for Gas Turbines (American 8ocisty for Testing Materials) p,, 3-$1x discussion p, 121-128. Results of high temperature tests onwrioua heat resisting allays. The materials studied ranged from odifisd 18%-Cr, 8%-Ni steels to practically iron- free Co-Cr and Comer-Ai alloys with additions singly or in aombin Lion of M0, W, , Ta, Ti, Al, 8, and R2. hort-time tension tests tests were msde precision-cast, Co-base alloys at 1000 to 1600 F. at :4500, 1600, anti 2 ?F for times varying f a loo to 1000 hr. Creep tests ire made at 1350, 1500, and 160eF to determine the stresses required to produce creep rates of 0.00001% jar hr. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved F-Release 2003/12/04: CIA-RDP80-009i6A003100040001-4 Cited States 1946 ki=i1t RLEW IN RUT RESISTING ME M, Ibrbert bkin, Steel,,, .9x: oat. 28 p. 78??79, L06, IU51 U. dWJIental$ of the st-taU Y of heat resisting aUot$; tl iRu I m;3= M xpla SOW dia sign based on wrought 18.8 chromiwm-nickel stainless steel ct onS b * d he of ct ,ilQy oonte .t of 1 8 &n alloy additions. Such modfftOatioUB are the basis for the development wartiuo superallO7$. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For "ease 2003/12/04: CIA-RDP80-00926Ap03100040001-4 -VwAk 0/ tea 1946 RTIEB AFFECTTN } THE FUMBILITI' CP ALUMINtJ* ALLOY SHEET AT ELVATED A. E. 1lanigan, L. F. Tedeen, and J. E. Dorn, Jour. Aeronaut. , V. 13, Sept. pp. 457-468 Fifteen aaluminmm-alloy sheet niterials were tested at elevated temperatures order to determine the influence of their tensile properties on their formabili ad-extension data were obtained for each condition; the effects of temperatures ate, and exposure time were studied. It was concluded that: appreciable increase in the elongation at high temperatures suggests rming operations may be facilitated at such temperatures. A general decrease in the limit of unifam elongation takes place at ratuee. 3) A fifty-fold change in the strain rate has an appreciable effect at elevated temperatures, even though an increase in temperature is equivalent to a deofease in strain rate. 4) For temperatures up to at least 430??s the time at temperature is. relatively unimportant for times ranging between 5 and 20 minutes, in the case of materials subject to precipitation hardening. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For gelease 2003/12/04: CIA-RDP80-00926A003100040001-4 United States 1946 STRESS RUPTURE AND CREEP TESTS ON ALU161N1 t ALlOT STET AT ELEVATED TEERkTURES, A. E. Flanigan, L. F. Tedsen and J. E. Dornf Meta3s Technology, V. 13, No. 6, Sept. 32 pp. also AIMS TP No. 2033. Stress-rupture and creep testa were run on five high strength aluminum alloy sheet materials at temprtures from 94?F to 375?+ Fracture times ranged from. several minutes to 1000 hours. Data were obtained on fracture times, elongation at fracture, creep rate and creep intercept] complete strain versus time curves were obtained. On the basis of rupture stress alone 758-T ranks first for temperatures , while for temperatures above 231?F, 24S-*T863, 243-T813, and 24S-4 11?F , rank higher. At temperatures above 1506F, rupture stresses are generally lover than yield stress values of comparable short-time tensile tests. Similarly the elongation at fracture in stress rupture tests is less than that obtained in short-xtix tensile tests. Therefore, caution should be exercised in the f tensile properties at the higher temperature. The stress rupture, fractures are either perpendicular to the specimen axis, or inclined at an angle of 60?. The former is true for all specimens (except 756-?) at high temperatures,, the latter for all specimens (except 758-T) at low temperatures. For ''758-T the reverse is true. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For.Aelease 2003/12/04: CIA-RDP80-0092654003100040001-4 1946 AN ADTCCRA P YC BETHOD FOR OBTAINING LOU EXTENSION MCORDS OF HIGH SPEED TE I Z 'STS ON SHEET SPECTi, 2NS AT ELEVATED TEMPERATURES, Alan. E. Flanigan. L. F, Tedsen J. E. Dorn, and H. R. Kaiser; Jour. Aero Science, V. 13, Lug. pp. 405-410. apparatus has been developed for obtaining load extension records of tensile tests on sheet spa oimens at elevated temperatures. It has been used successf l1 at temperatures up to9O T and at strain rates as high as 1 per sec. Difficulties are encountered, however, in deterstining the load at fracture. Typical results are shown to illustrate the effects of testing temperatures and strain rate on the load extension curves for XB75S-O Al-clad sheet. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved Fo .Release 2003/12/04: CIA-RDP80-00924AO03100040001-4 United States 1946 PROPERTIES C AitUMMIN &LO SHEET AT 2YATED *EtNFS9c1lkTURES, A. 11,ani , ldsen and J. g. Dorn, Prot3. AS . V. 46, pp. 9"69. Also Symposium on vials fcr Oas ' bi sess, ASTMr pp. 161-179. This report includes a detailed description of the special testing apparatus compression tests on aluminum Mesta at temperatures up to. as the results obtained from these tests. Specimens of 24S-.t, 24S-S6, R30-T and 753-T were tested after being exposed to the elevated testing temperatures for periods ranging from 1/2 to 1000 hours) the 0. pffset compressive yield strength, the modulus of elasticity in compression, and the tangent modulus were determined for each specimen. Prom oomparisicna of the effects of time and temperature on the tensile and compressive yield strengths, the authors found that the compressive yield strengths are closely related to and can be calculated e tensile yield strengths. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved ForqRelease 2003/12/04: CIA-RDP80-00926`A003100040001-4 Vaited States 19 TE PATURE ALLOYS DEVELOPED FOR AIR=n TUR$ ERCHRRU. RS AND GAS '. L. Tres n, R. N. Re molds and A. A. Wbite, $ympas am on Materials as ~binees (A tr. Boo* for Testing Materials) p. 52-.79. Alloys developed during work for the O& at the University Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved ForQplease 2003/12/04: CIA-RDP80-00926/4803100040001-4 s 1946 CRUP f?" '.B ON SO3& E& UM LEAD AND IZ&D-ALLOY SEPFS AM TAP 0. R. Gohn, 5. M. Arnold, and S. M. Bouton, Amer. goo. for Testing materials, froceedin a. v. 46, p. 990-1020. Oreep test cover a period of approximately g yr. on specimens from 16 csc eroial l.,ad cable sleeves of 6 different compositions and from 14 experimental Fb.&noy tapes. The data shoe tha chemical lead sleeves are more resistant to creep than Pb-Sn or Pb-Sb sleeves at low stresses but not at high stresses. Tor the tape specimens, a e4mi3r relationship was found except that high Ca e11o71 are superior to chemical lead in creep resistance at all stresses. Highpurity, fire-refined leads which contains smaller percentages of minor constituents than chemical lead, was inferior to chemical lead at all stresses. 13 ref. Approved For Release 2003/12/04: CIA-RDP80-00926A003100040001-4 Approved For Rsabease 2003/12/04: CIA-RDP80-00926AQ 3100040001-4 United States 1946 ' RA ALLOTS, M. J. Grant; Iron Age, V. 157, May 23, 1946, pp. 42-45, May 30,, 1946,, pp. 50-56 - June 30, 1946, pp. 60-63- Mw purpose of this research is the development of superior alloys for performance in gas turbines at about 150 0?! and the study of the effect of nitrogen, carbon, tantalum and columbium on certain nickel-ehrom um-cobalt- iron base complex alloys. Additional tests were made at 1600?y. Studies of the surface polishing of specimens, of the temperature of investment molds, and finally of the high carbon vitallium type alloys are also included. 37 alloys were tested in the forged and heat treated condition. Their composition as well as the result of rupture and creep tests at 15000 are tabulated. The composition of 80 1 Cr-Co-Fe base cast alloys and of 37 vit*lliu* base cast alloys as well as the result of rupture and creep tests at 1500? and 1600?F at various stress" are ala, tabulated. Many alloys were found to be nonforgeable. Extensive nsetallographic and x-ray examination of all the alloys was made for various treatments. Mold preheat temperature was investigated to determine the optimum preheat temperature for the best all-around alloy performance. High temperature failure and strength and ductility comparisons among the alloys are also presented. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Re'Wase 2003/12/04: CIA-RDP80-00926AOW100040001-4 1946 SUPE , M FOR HIGH T ERATUTS SERVI , Harold A. Knights, y. 23, p..1557-1563. Seat resistant materials developed for gas turbines and r elated uses. so is a table of high-temperature alloys. Approved For Release 2003/12/04: CIA-RDP80-00926A003100040001-4 Approved For RJease 2003/12/04: CIA-RDP80-00926A083100040001-4 s 1946 PROPERTIES OF GUN-CONTAINING MA0H IUM ALL ? AT Rai AND ELEVATKD TEMP RATUBES, T. E. Leontis and. J. P. Murphy, eta1e Technol. 13 (3) and AI4tE Tech. Publ. No. 1995 32 pp. The properties of magnesium-cerium alloys containing up to 10% cerium were emudned at temperatures up to 700?F (371?0); . the cerium was added in the form of tfmisch metal" and thus contained a large ppreentage of lanthanum and other rare earths Mich were included in the term cerium content. In general, the magnesium-cerium alloys retain much of their strength at elevated temperatures (400?F) and exhibit high resistance to creep over a wide range of temperatures. These properties are somewaht improved by additions of manganese and if the manganese content exceeds 1.1% the corrosion-resistance (in 3% aqueous sodian chloride) is greatly increased. Additions of aluminum tend to decrease the strength at high temperatures, but increase the ductility and electrical conductivity. Microstructures are reproduced and details given of creep testa, tensile tests, hardness tests, and measurements of the electrical and thermal conductivities. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved Forpelease 2003/12/04: CIA-RDP80-0092SAc003100040001-4 United Mates 1946 INTLUE 'CE OF STRATN RATE AND TEMPEPATUR ON THE MEOW LAICAL PROPERTIE3 OF MO NM METAL AND COPPER, D. J. T A , ?. W. Gail, D. II. Woodard, Proc. ASTM V. 46 p 902.. This paper discusses the relation between creep rates temperature, flew stress, breaking stress, and ductility, and then presents a general view of the influence of the strain and temperatures to the mechanical properties of tonal metal and oxygen-free copper between -18g?'C and the melting points. The third stages of creep may be initiated by the formation of microcracke, predominantly intercrystalline. Evidence indicated that the lowered ductility resulted fran the combined affects of the higher temperatures and the slower strain rates in the creep teats. Cracking occurs when the rising true stress reaches a technical cohesion limit determined by the temperatures strain rate,. and amount of plastic deformation. Progressive disintegration thus begins and continues to complete fracture. Photomicrographs show that the cracks are fewer but generally larger in the copper than in the monel metal. The number of cracks tends to increase with increase in the temperature and with decrease in the strain rate. Local contraction appears when test is carried at the highest strain rate, but disappeared with decrease in the strain rate. The tendency to local contraction was greater with the copper than with monel metal. In specimens that contract loca1i' before feactures the number of cracks tends to increase in the noted portion with approach to the surface of complete rupture. Both the second-stage flow stress and the cohesion limit increase with decrease in temperature azd with increase in the strain rate. Decrease in temperature or increase in strain rate increases the cohesion limit to a greater extent than the flow stress; the ductility thus increases. The accelerated increase in the ductility with increases in the strain rate my not continue pp to a high rate of strain. The ductility for complete fracture of both zonal metal and copper also increases at an increasing rate with increase in the initial breaking stress. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved FoRelease 2003/12/04: CIA-RDP80-00926,003100040001 t4 0" Cates 1946 TENSILE AND CREEP STRENGM (II~' SOME MAGNESIUM-BAS ALI YZS AT E ,EVATED T TITRE, A. A. Moores and J. 0. *Donald, Proc. A?S.T.M., V. 46, pp. 970-989? Also Symposium on Materials for Gas Turbines, A,5.T.%.,. pp. 180-199. The results of creep tests at temperatures up to 300?F and up to 1000 hours duration on 1.) several co ercial magnest -'terse 811078 (all of which were relatively stable 'within the range of teat temperatures) and on 2) certain experimental cerivsr-containing alloys are offered as a b asis for qualitative and comparative use in design. The report data include alloy designations, nominal compositions, typical room temperature properties, tensile properties s ate elevated temperatures, and creep properties at elevated temperatures. The teauth. found no loss of ductility at rupture after 1000 hours for the alloys By comparing yield and tensile strength mith creep properties (as listed in Table VI of the report) a suitable stress for high iemperat%are service can be obtained. Approved For Release 2003/12/04: CIA-RDP80-00926A003100040001-4 Approved Formftlease 2003/12/04: CIA-RDP80-00928*003100040001-4 United States 1946 PRO R AND CH CTEMXC8 (T 27% CHRUKM IRON, H. D. Newell, Metal prise, v. 49, May# p? 977-991, 993-1006, 1016, 1018, 1420, 1024, 1028. Studies originally intended for manufacturers of raw material for synthetic rubber. Description of the ally r; properties at elevated temperatures; shot -t tensile properties; creep strength of stainless steel, type ; impact properties and notch sensitivity; effect of depth of notch on impact strength; structural obaracterieticej em rittlemant phenomena; working amd fabricating; effect of time # Ad temperature in removing 885?F embrittlee$ent in 25% chromium irons; heat treat (annealing); service examinations and data; oxidation rate ine per 1000 hr.) of various alloys after plant exposure in butadiene reactors; chemical composition versus hardness and amount of sigma constituent in 27% ohromi-iron tubes after plant service. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Release 2003/12/04: CIA-RDP80-00926AQ23100040001-4 United States 1946 ^tt% +t t'IUM-B, AIL 6? Robert M. Parka and Frederick P. Bens, 3yuposium on Materials for Gas Turbines (Amer. 8odde for Testing Materials) p. 80-98. Die. p. L2 -.U8. Results of an investigation of Or-bass alloys sponsored by the War Met llurgy ow of the N,D.R.C. at limax Molybdenum Co. Neat resistant metals being sought were for use as as-turbine blades rotating in an ox disin *tmosphere w t peratures up to 160(r?. The alloys were also applied experimentally as erosion resistant materials for ordnance uses. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Relmwe 2003/12/04: CIA-RDP80-00926AOM00040001-4 AT THE HEAT, Fred P. Peters, Scientific AMOrican, v. 174 April p. 152-154. alloys, and some old standbys from other fields, are key material of turbosupa rohargere, gas turbines, and jet engines. Their compositions and which they wezre formed are now revealed. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 United States 1946 CTION AND P ASTIC IMENSION Or ZINC SINGLE CR`iSTALB, Thomas A. Read P. T. Tyndall.; Jour. Applied Physics. V. 17,; No. 9, pp. '713-720. is are given on the internal friction of tomr single crystals of zinc made to oscillate longitudinally. A description of various slow speed tension tests within and beyond the elastic limit is included; the results of such tests are given. 'fie single crystals are made of "Bunker Hill" zinc containing ,bout 0.01% impurities. The results are compared with those obtained with till purer crystals prepared by another method. The decrement is higher at the lowest stress amplitudes, but in comparison to that of the purer metal., it increases very slowly with increasinE strew-amplitude. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For lease 2003/12/04: CIA-RDP80-00926A&03100040001-4 United States 1946 PRECISION CAST PARTS OF HIGH TEVERATURE ALIYOXS, W. 0. Spree V. 17, pp. 1.1'126. i'oduct Engineering Physioel and mechanical properties, creep data and chemical composition of five RVnes-8tellite, alloyw. Design data are given dealing with tolerances on dim nsiors? weight and dimensional limitations on sizes of precision-cast puts and types of parts generally suited for manufacture by precision casting methods. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Reuse 2003/12/04: CIA-RDP80-00926A0Q3100040001-4 States 1946 THE EFFECT OF CARBIDE SPHEROIDIZATION UPON TEM RUPTMIE STRENGTH AND ELONGATION OF AREOIs MOLYBDENUM STEEL, S. H. Weaver; Proc. A.S.T.Y., V. 46, pp. 856-969. figh temperature service v.U cause spheroidiaation of the carbide particles in steel, thus changing the properties of the material. Specimens of carbon- molybdenum steel plate were treated no as to obtain 12 different structures of the steel, representing "conditions" which might result from high temperature service The results of long-time rupture-stress and elongation tests on the various structure are reported and interpreted for runs at 9130?? and 100O??. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For&Iease 2003/12/04: CIA-RDP80-00926A@03100040001-4 1946 BIGR TI NGTR }$GH'TI dPER*,TUR1 ALWT 5-816, Thomas 1. Wilson, Materials & Methods, V. 24 Oct. pp. 8B5-8890. JLgh strength at 1500?F reeistanoe to burned l gases, and ease of fabrica- tion are among the favorable characteristics of this cobalt-base alloy (44%) containing 20% chx'omi vm,. 20% nickel, 4% molybdenum, 4% tungsten, 4% columbium,, 1#5% max. manganese, 1.0 6 max. silicon, 0.40% carbon and4% max. iron. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Rase 2003/12/04: CIA-RDP80-00926A803100040001-4 I`taRCv -.~ ,?iiAT ISIS`, i N G MITAW FCR L`NG . R. .R. W nk1eb aek JL*+-x' 4.4- a . and iatio ba i design and development engineers can expect of alloye fin' high taa - p 'ni k c er-asron raobalhr ohroini m, ohro pia .n1eke1m.oo ,t and ohro tm laboratories and companies in which materia28 were made and tests carried out. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For ReJaase 2003/12/04: CIA-RDP80-00926AGW100040001-4 .ALLOYS, WROUGHT AND MST$ Machine Design.. V. 1 Nov. P. 155-158. s; physical o wtants; characteristics; applicatione; fabrication to corrosion; annealing. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved Forl lease 2003/12/04: CIA-RDP80-0092614903100040001-4 states 1946 HIGH INANE and Steel, V. 19, April, p. 159-160- Sow rtime results of German jet engim research". Compositions and properties of five steels used for gas turbine blading. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Refiease 2003/12/04: CIA-RDP80-00926AO03100040001-4 United 8tatee 1946 AT ISTING STEM, iron and Steel,, v. 1,9? July p. 433-43. 1? ! v+ 4.r.: rtorteanoee and pbcysicel properties of the German Krupp steels Tinidur and Cromadur are detailed, and are ahowst in tables. Analyses of other steels deweiopod in order to overame, the scarcity alf pertain #1ems to are given, together with Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For-Release 2003/12/04: CIA-RDP80-0092SA003100040001-4 c A' kk States 1946 &R' ;l HIGH TWVATURZ ALLDYS NOW AVAIPLL POR PRAC 3 tI v. 52, .g, p, 183-Ri8?.. Several Hama 8tellite alloys have been developed during the war that peacetime appl.oationes in fields calling for high temperature creep tare strengths, Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Release 2003/12/04: CIA-RDP80-00926AD03100040001-4 1946 PROPERTI&S OF 3M= FOR HIOR TWERAT RE SERVICE, Material and Methods, v.:, Mar. p. 79, 7'1. composition and room temperatures physical propert i eft of R id In high temperature serviced Table II gives variation in 3 properties with temperature for steels listed in Table I. Approved For Release 2003/12/04: CIA-RDP80-00926A003100040001-4 Approved For Relfase 2003/12/04: CIA-RDP80-00926AOU100040001-4 hitsd States CRP5TNGTH OFS on and Gae Job., V. 45, Nov. 9, p. 103. slams creep of 16 alloy steel. in approximate r e 90 to 14000F. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Release 2003/12/04: CIA-RDP80-00926AOQ3100040001-4 United States 1946 WAT AND CORROSION RESISTANT HIGH T TATUBE September, pp. 151, 153, 155, 157. Product Engineering 17, The tensile and creep properties of three alloya mere studied both at ro temperature and at 1200?F 1504?F. The chrome-nickel-cobalt allays 5-590 and 3-810 were found to possess good temperature properties and a high oxidation resistance. S .O has the better properties and is wed in turbine buckets, while 5.590 is used in turbine wheels. The third alloy examined, 8-588 (chrome-nickel alloy) has good high tenpe .tune properties, but is poor in its resistance to oxidathn. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Release 2003/12/04: CIA-RDP80-00926AOGa100040001-4 tea 1946 TENSION TESTING AT ELEVATED TEMPERATURES, T. M. Blackman, P. R. Mourse, and E. H. Plesset, ASTV Bulletin No. 140, May pp 32-37. Simple and inexpensive method of heating tension specimens. by resistance, a method of measruing specimen temperatures, and two types of exteneometers and the associated electronic equipment for use with a Baldwin-Southmark recorder. One extensometer is a reworked compressometer for use in the elastic range. Other measures elongations up to 50% of a 2-in. gage length for studies in the plastic range. Tension specimen may be broken with out damaging the latter extensometer. Calibrating adjustments have been not so that 50% elongation results in a 10 in. record (of the elongation) on a Baldwin-6outhwark tension machine recorder j the elastic range is necessarily so foreshortened that it is not discernible on the record. Also discusses technique for determining the true load at fracture of ductile specimens. Approved For Release 2003/12/04: CIA-RDP80-00926A003100040001-4 Approved For Rase 2003/12/04: CIA-RDP80-00926AQ03100040001-4 states 1946 . CREEP TEST EQUIP NT AT RUSTLESS IRCN AND STEEL ?eaba rd; trumen.te, T. 19,E January, p. 12. Readings of the order of 1%/1O,000 hours are accurately obtained and creep rates of O.1%/loo:,000 hours are reliable. Fluctuations at 15 ;;IF are lose than 1?F, and the temperature gradient in the furnace is maintained at less than 2?F. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Release 2003/12/04: CIA-RDP80-00926A0Q3.100040001-4 meted States 1946 A HIGH PR 1CIBION Obrg-I.,NCH CTRICAL SX F&,)AZTERx, TI. M. Mahan and Wk, S. Warreen, Instruments, V. 19, Sept. pp? 502-505. A gage is described which retains the simplicity and sensitivity of the bonded-moire strain gage and in addition is applicable to long term studies. The features of this Ira trument suggest the possibility of mounting gage points on pen pant structures such as bridges, roofs, and dams, with the idea of *aintaining a constant check on these structures. The is trument esa s-easure with extra precision the distance between gage points at any time during test periods of several ionthe duratiln. Approved For Release 2003/12/04: CIA-RDP80-00926A003100040001-4 Approved Foi elease 2003/12/04: CIA-RDP80-00920003100040001-4 3.946 -DR:tVEN EEP-RM Th TXNO MAGA , X. J. enjoins; Metal Probgress, V. 54, No. 5, pp. 3.100-3201. A creep curve is autaeaat carry drawn for each to eat specimen; there are no weights or exteneazetera on the machine, a motor driven screw jack being used in conjunction with a spring in series witIT it to measure the foram, and the travel of the screw Jack being a measure of the creep at caet3tant 2oRd. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Re`{oase 2003/12/04: CIA-RDP80-00926AD 100040001-4 United States 1946 NEW MACHINES ORtEP AND QtEEP RVPT# E TESTS# M. J. Man3oirj Machu e V. iS, No. 25,E pp. 96M-101.. ,RLgh teqerature creep and creep-rupture testing nacthinee designed at stiughouae research laboratories. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For R ase 2003/12/04: CIA-RDP80-00926'3100040001-4 1946 OF TAIS {Report on Royal Society Conference Feb.,, 1946 .. Andrade, . cram TapaeU, MoCance and Alien), R.P.Al .en Nature, V. 157, No. 3989, 49'-471.. Report of a conference concerning the measurement, empirical expressions, and the influence of metallurgical structure in creep. Papers include theore- tic "' . works by Andrade, Recker,, and Orowan. Thpeell discusses the various l cCanc a relates strain hardening to the increase in volume accompanying plastic deformation. N. P. Allen discusses the effect of grain-size on the creep properties] the addition of elements which raise the softening temperature, in conjunction with work-hardening, results in the improvement of the creep properties. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Rpjease 2003/12/04: CIA-RDP80-00926AW3100040001-4 A, McCance; Engineering, V. 161, pp. 258-259? Dr. mCanoe states that metals subjected to plastic flow possess two important characteristics amongst others, the increase in volume,, and the increase in hardness; these phenomena are correlatable. Internal stresses are produced by the volume changes which in turn depend upon the compressi- bility of the material. These internal stresses account for the change in hardness. The effect of volume change on the stresaddeformation relations is studied for the case of slip along glide planes, By means of the above correlations,, Dr. MccCsnoe extends his theory and applied it to creep and to fatigue. In the case of fatigue it is not clear w1y the fatigue strength of mild steel should be approximately one-half that of the tensile strength. The extension of the theory to creep and to fatigue is a mathematical one, and is based upon the stress deformation relations, which in torn are obtained from volume and hardness data in the manner described above. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Release 2003/12/04: CIA-RDP80-00926AQ03100040001-4 194 STUSSLS IN ROTA IN DIS S AT HIGH ` ::RA2'tIR ,, A. S. Thompson; .Tour. A Mechanics, V. 13, No. 1. p. A45. A general n thod is found by which the problem of the rotating,' disk with any arbitrary profile could be solved; including the effect of plastic flow and of variable temperature, and including the change with temperature of modulus of elasticity, coefficient of thermal exapnsiona and allowable stress, The solution requires for its application to a specific disk only the elementary arithmetic involved in completion of a tabular form sheet. Two applications of the method are made, For an arbitrary disk profile, an integral equation was found which converges rapidly to the radial stress distribution in a series of successive substitutions, For an arbitrary choice of radial stress,, the necessary disk profile can be found in one calculation. Appendix 1 given an example of the use of the method for the design of a partially plastic disk with a central hole. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Release 2003/12/04: CIA-RDP80-00926A0W100040001-4 England 1946 ,.r V- P- TAL6# National Physical Laborator Conf y erence, git Bring 363,, pp 233--5, 258-x. .fferent aspect of the subject were dealt with in turn by Andrade, Tapsell, ?rc wan, Allen etc. I paell, H. J. - kor a given terperatl-re, the rate of creep under strea8 is an extremely sensitive indicator of the mechnnica]. strength of a *etal. From tests on lead., a magnesium alloy, and acme steels, it has been aeoer- tamned that,, for each material and for a restricted range of stress and titse# the creep curves at each stress have the same geometrical form. Also# the creep curves for a material under tension, torsion and a combination of tension and torsion, have the saes geometrical form. 2. VtC te, A w Metals subject to plastic flow passed two characteristics - they increased in hardness and they increased in volume. They are correlated phenomena and that the internal stress, produced by the volume changes which will be connected withthe compressibility of the m terial, accounts for the changes in hardness. The speaker had studied these volume changes and their effect on the stress-deformation relitioris when slip took place along the glide planes. Approved For Release 2003/12/04: CIA-RDP80-00926A003100040001-4 Approved For Rel ase 2003/12/04: CIA-RDP80-00926AOW100040001-4 gland 1946 DEALT- .SE HIGH RAT[ ALL , L. E. Bvowne; Ste,1, V. 1180 No. 21, pp. Sal, 132. go hardening data, endurance properties, short-tom tensile properties,, and creep and stress rupture data for vari otis high-temperature cobalt base alloys are tabulated. Approved For Release 2003/12/04: CIA-RDP80-00926A003100040001-4 Approved For$elease 2003/12/04: CIA-RDP80-00926ArO03100040001-4 ng1and 1946 =NM IIM ALW!S t PTDPERTMS AT ELEVATED TEMBATURES.. 4,. J. and R. L Payne j Jour. Institute of Metals, V. 73, November, pp. 105-127. Magnesluw-cerium alloys are successfully cast in sand molds. The mechanical properties are poor at room temperature, but the creep resistance and strength at 200?G are good. The addition of zirconium refines the structure and leads to a considerable improvement of the proof stress, ultimate stress,, and ductility. The beat properties were obtained with an alloy containing about 3% cerium and 0. zirconium, the mechanical properties of this alloy being of the sun order of magnitude as those found in magnesium-aluminum alloys. In addition, these alloys cast well and give sound products, Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Rel se 2003/12/04: CIA-RDP80-00926A0Q ?I00040001-4 England 1946 Oliver, D. A. and steel,. Se, 3. T.; Motallurgia, 34, p. 293 Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Reiesse 2003/12/04: CIA-RDP80-00926AOW100040001-4 England 1946 PROPERTI (T THE AL N0*-SILICON ALLOI5 AT ? BTU 5: T}JE REGION OF ` SOLII il$, A. Singer and S. A. Cottrell; .our. lns. of Metals. V. 73, pp. 33-.4? hhe tensile properties of alums -eilioen alloys (0-12% Si) were determined at to ratures in the solidus region in order to determine the mechanism of hot*. dthortness. The ductility rapidly drops to zero at the solidus, but some strength remains up to a point about half way between the solidus and llquidus. The extent of this region (above the solidus) appears to be an important factor regard to the hot-shortness aharacteristies of the alloys. tti, to the solidus, the decrease lb tensile strength with increasing temperature in greater for the alloys vith larger silicon contents, but the ductility mains high in all the alloys up to a point just below the solidus. The temperature range above the solidus, within ehioh the alloys retain same em ll degree of strength, is saxism at approximately 1,8% silicon. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For REyease 2003/12/04: CIA-RDP80-00926A Q3100040001-4 6 rJG L,Avxn e 1946 THE MECHANICAL PROPERTIES, INCLUDING CREEP, CF ALUMINGM BRO1=8 AT EI2VATa TEPERAT , E. Voce, Retallurgia, V. 35, No. 205, pp. 3-9. Tensile tests were carried out at room temperatures, 250?C and 400?C; creep tests at 250?C and at 400?C; and notched bar impact tests at room temperRture, 200*C, and at intervals of 50?C up to 600?C. The creep properties of aluminum-bronze were compared to those of tin- bronze, gun metal, and Cu--Si- alloys. Because of its resistance to oxidation, aluminum-bronze appears to be the most premising copper base alloy for service at moderately elevated temperatures. In regard to creep resistance, aluminum bronze is infbrior to the silicon alloy, bat is superior to the tin bearing alloy. Tensile test reveal that the presence of the gamma phase does not diminish the ductility to as great an extent as is popularly supposed. From a coma rison of no chat.-bar test results, it in evident that stabilization of the extruded alloy causes a considerable degree of embrittlement at temperatures of up to 450eC. At 60?C, the alloy becooa tough, due to the pxesance of the beta phase. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Rase 2003/12/04: CIA-RDP80-00926AGm3100040001-4 1946 CREEP RESISTANT ; LL(J` S ISs S. E. Wolfson and 1. P. Uyahkovj Metalhurgia, 1, pp. 287-290. The selection of steel$ for high temperature service provides many anginsers with problems of a complex character. It is wen known that steel maintains comparative permanence of properties and dimensions at atmospheric and moderate temps rsturess, but where high temperatures are eoxm earned and the metal is sub j eoted. to intermittent heating and cooling, as in high tempesatvre3 stunt steam plant, the phenomenon of creep must be considered. The subject has been given consider- able study. A more recent investigation on t he behavior of alloy steels at pro- lond high temperatures has been carried out and reported upon in Russia, the main results of which are given in this article. The investigation shows that the addition of molybdenum to steel imparts high heat strength. Vanadium tls a similar effect on alloy steels but to a lesser degree. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For R ease 2003/12/04: CIA-RDP80-00926AU03100040001-4 C NI8M OF CREEP IN JETAW (ALU}4INUM), W. A. Wood and H. J. Tapasel.l; Nature, V. 15s, No. 1.2, pp. 415--416. The grains of a polycrystalline metal under tension break down into crystallites characterized by widely differing orientations and by a particu- lar lower limiting size -which is a constant of the material. This has been termed "random crysteAlite formation". Under similar loading of single crystals, a dislocation of the mosaic structure occurs, but the mosaic elements in general remain parallel. The condition has been termed the "parallel cry- stallitee formation", Experimental results show that a polycryata llite specimen in creep will deform like a single crystal in tension. A specimen of aluminum, previously annealed, was stretched at 300?C in a normal tensile test to an extension of 0.9%; the extension was completed in two minutes. The specimen was then unloaded, cooled and examined by x-rays. A similar specimen was allowed to ofeep under a load of 1/2 ton/eq.in. at the same temperature until the same extension was reached, but the extension took 50 minutes. X-ray examination showed that the tensile specimen had a random crystallite formation, while the creep specimen had a parallel crystallite formation, When the tensile specimmen, after unloading, was hold at the elevated temperature for the same time as the creep specimen, no appreciable recovery occurred in the structure. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Reuse 2003/12/04: CIA-RDP80-00926A0Q100040001-4 1946 A S ,LL CALF CIMP-TESTVIG 0. T. Harris, Metallurgias V. 34, Julys Much reaearah. work has been carried out to devise suitable apparatus and e with the object of determining the strength of an alloy at elevated temperatures, particularly resistance to creep defor tion. Sher ' t * has been carried out on short-time tests in order to accelerate the development of a small-scale creep--tenting machine. This machine is described and some results are given showing: the form of the strain-time curves obtained. . Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 1946 THE ROlE OF IN ERGRANU AR BOUNDARIES AND THE DEFORMATION OF METALS. APPLICATION TO CREEP AND FATIOCE, Charles Crussard; Revue do tallurgi e,. V. 43,, No. 11/'12, Nov i-Dec. pp. 3O7-316. An investigation of the influence of grain boom riee on the fatigue and creep properties of s gneziu, alumirsum, and zinc. It is concluded that there is no amorphous film in the grain boundary in annealed metals. It is believed that at estsell stresses internal friction is caused by a micro-flaw, and that ordinary flow has both trsansrarystalliz and intergranular origins. The con- clusions are based on a classification of different types of creep based on the heats of activation. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For RJease 2003/12/04: CIA-RDP80-00926AQ310Q040001-4 Vii: j? ~!.! ~ 1946 C,f, _IX CONTRIBUTION TO THE KNOWLEDGE OF THE ALLOY AL-Z -MO-CU-CR, V laden Paic, rend. 223, pp. 727-7 The alloy examined had the compositions zinc 8.5, magnesium 2.3, copper 1.5 chromium 0.25, iron 0.07, and silicon 0.O $ balance aluminwa, and was in the fora of 14 att. bars and 50 mm,. thick palter. the variation of the tensile strength s th the temperature was plot ted, and. showed that the strength of the plates is distinctly lase than that of the bars above 290?C because they be to corresponding recrystallize at 30 3?C and. are completely recrystallized at 320?C. in temperature for the bars are 380? and 1.20? and 500?C. The n chenism of agehardening was investigated by radioc ystallography on two sets of specimens differently heat-treated and the results are discussed. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Prance 19,6 Tapsell, H.. J.I De. inganieur 30, p. 57. Measured creep rate after 5 days under stress of S ton/eq.in. at 450?C of 47 samples of rolled steels. Steels varied in C content from 0.14 to about 0* 4%1 no correlation of creep performance with 0 content. Got variation in creep rats of 30101. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Re1wese 2003/12/04: CIA-RDP80-00926AGQ 100040001-4 e 1946 A MICRO -WHINE FOR THE MECHANICAL TESTING OF METAL WIRES AND TEXTIT , Pierre Chevenard; Techn. Moderne, V. 38, No. 21/22, pp. 2+9-+254. A miniature machine for tension testing wires at room and at high tempera- tures, dry or immersed in a liquid. A screw mechanism extends the wiry, while at the other end of the wire and in series with it, is a steel strip whose deflection is proportional to the applied force this deflection, and the screw motion are tra .ttted to a mirror aotthat the two motions appear at right angiai each other. It tollot that the light spot reflected by the mirror traces out aforce-extension diagram. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Release 2003/12/04: CIA-RDP80-00926AM100040001-4 cede:n 1946 eat, V 3, July pp. 333.334. vs vC3Siaup, To obtain general information with regard to the tendency to embrittiement Of 16 eteela,, sgecimew were subjected to a 1000-hr test at 500?C. impact testa were carried out both before and after the 1000-hr test. Conclusion is that the ordinary l mittng creep stress test should be oompleaented by a corresponding test on notched test bars. In the latter test a stable material should not exhibit any tendency to enbrittlenent or to fissure formation in the notch similar to stress-ae vsion. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For (lease 2003/12/04: CIA-RDP80-009264 03100040001-4 India 1946 GAS TURBINES? AND JET PROP ION, R. P. Probertj Indian %9. - British Council Publication, V. 1.20, No. 5, pp. 267-270. Data on materials possessing good creep properties at high temperatures (including information on the Nimonic 80 alloy) art discussed in relation to the produotion and design of high temperature a-achinery. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Release 2003/12/04: CIA-RDP80-00926A00 100040001-4 s..c( r r Germs ay 1946 EPPECT OF COLD WORKING ON CRAP STRENGTH, H. Zsehokke; Schweizer Archie. V. 12, Octobers pp. 297-304. The high temperature creep strength of three 18-8 stainless steels containing Ti, Tag Mo and W is investigated in relation to the prior cold work and to rolling temperature. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Release 2003/12/04: CIA-RDP80-00926AW3100040001-4 ON THE QUESTION OF THE ABBiOtMULT HIGH PLASTICITY OF CERTAIN ZINC-d-L NUM ALIA73, A. A. oo r and Z. A. Sviderekaya {Feet. Akad, Nauk R pp. 1001-1004 (in Russian). Ainc-oaluminu= alloys contain i.ng 75-$35% zinc, on heating to 1034?-3' 0?C after preliminary quenching, become many time s softer and more plastic than the pure component metals and the alloys containing 0-75 and 85-100zinc, heated to sixxr l ar temperature. The unusual increase in plasticity is observed with a granular structure but now tith a lamellar one. following explanation of the pehncon in given. Plasticity depends on the mechanism of deformation, on the initial capacity for deformation, and on the possibility of this capacity being restored during the deformation process by the removal of work-hardening and the "healing" of sub-microscopic sources of failure which arise in deformation. If these is a sufficiently large mutual solubility of the component elements of the alloy and one which changes rapidly with temperature, mutual solution talus place on account of the local increase in temperature and the reverse proeeas of separation occurs on cooling. In this vay, as a result of the transference of atoms through the solution, "healing" of the sites of incipient failure can take place. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Release 2003/12/04: CIA-RDP80-00926AN3100040001-4 mite d 8tQa 1946 THE THRORY OF PIASTICIT!-?-AN OUTLINE OF WORK DONE IN $TA, W. W. Sokolovaky, J. Appl. Machanies, 13 (1) Al-A10. hematical. Russian wo1k in developing the Mise8u.t nck3r theory of plasticity is reviewed with special reference to the e14stic 'plastic bending, of plates and shells, the plastic state of plane strain, and plastic atates of plane st7rees. A bibil ography of 24 references is given. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Release 2003/12/04: CIA-RDP80-00926AQ 3100040001-4 1946 THE IN LUE OF RATE ON THE RESISTANCE OF MT&L TO PLALSTIC '0R6(A.TION, L. D. Sokolov (Zhur. Tekhn, Fisiki, 16, pp. 437-422 (In Russian). Static compression tests (at rstes of 0.01 and 1.0 mm* see.) and dynamic tests (et an average rate of 2000 mm/sea.) were carried out in the cold and at elevated temperatures on 20 mm, high cylinders of lead, copper? and steels of various carbon contents. True-stress curves were constructed from the results. The rate coefficient (i.e., the ratiof of the charge in true stress to change in rat, increases with rise in temperature and with diminution of the mp of the metal, and has a single-order value for an increase in rate in the ranges indicated above. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Release 2003/12/04: CIA-RDP80-00926A803100040001-4 al* 1946 THE PL TIC DEFORMATION AND FAILURE OF POLYCRYSTALLINE METALS UNDER TENSION.I Apparatus, V.S.Averkiev,, G. N. Kolesnikov, V. A. Pavlov and M. V. Yakutovichl Zhur Tekhn Fiziki (in Russian) V. 16, No. 11, pp. 1349--1356. The range of testing temperatures li s between -X195?C and 56?C, *ale the strain rate range lies between 2 x 10- cm/sec and 6.4 x i?` em/sea. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For RWease 2003/12/04: CIA-RDP80-00926AQ03100040001-4 1946, THE EM CT OF THE RA OF D FORMATION ON TH PLASTICITX QF COPPR.R ALLAYS AT RION TI ERATIIE , A. V. obylev and A. I. Chipizhsnko, Tsvet. Mstally, pp. 7095, (in Aws x) Static (1-300 mm/'min.) and dynamic (5 aec.) teats were carried out on wirer of 6-7 mm. dia. of the following annealed (1 hr. at 606?0) all : brasses with 6:3.38% coppers 6212% copper and 57.55% copper ? 1.17% lead, and bronze con?tai" 93.34 Co r, 3.53% tin, remainder zinc. At high temperature (500 a 750 *,p 800 and 850 C the plasticity of the allays (as indicated by the contraction in croas~seotion inereaaes with the rate of deformation. T1 revults ~'re given I - tabie Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Reuse 2003/12/04: CIA-RDP80-00926ADN100040001-4 Russia 1946 MASTIC AFTER EFFECT IN PW PW)R BRONZE AT ?C, N. B. Davidenkov and 0. A. Eu .rskayx,, Zhur. Tekhn. Fiziki, 16, pp. i 61.-12?0 (in Russian tigaetion was carried out on the elastic after-effect in specimens of phosphor-bronze strip (0.5 mm. thick) in the form of beamis of equal strength. With various loads on the and of the strips, the change in the angle of being end of each strip was measured at 110?C over a period of 1* hr. It was hat the elastic after-effect increased at an ever-diminehing rate during and that in a further half hour it reached no higher value. With increase in stress the magnitude of the absolute elastic after-effect grcwa? while the relative value diminishes. With increase in the degree of rolling (cold working) the ela >tic after-effect increases both absolutely and relatively. Annealing sharply reduces the elastic after-effeatl thus an hour's annealing at 160'?C of a specimen reduced in t hickness by rolling, while causing practically no change in hardness, reduced the elastic after-effect seven time. For practical purposes a low temperature anneal is recommended. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Release 2003/12/04: CIA-RDP80-00926A @ 100040001-4 1946 THE d?t:MI IC , PFDPE"T3 .LS CF MAGN IC31I-RICH ASAGN -IM-AL NG I VIR AILO'ffi, V. C. Kuzneteov and M. A. Skryabin, Invest. Akad. Nauk SSSR Khim. pp. 557-568. . (in Russian). The Brinell hardness of magnesium-rich alloys whoa compositions lay along three radial sections (silvers aluminum a 4:l, 1:1., and la4) was measured(a) after quenching from 39a?C, Ib) after slow cooling, (c) after nafgura1 aging, (d) after artificial ageing, and ieohardness curves were drawn. Plasticity increases with increase in the ratio of silver to al umf num,. while the region of brittle alloys moves in the direction of high concentrations of alloying elements. The existence of a minimum on the hardness curves of the aeagneasium solid solution is established,, and it is suggested that this corresponds to a state of short-range ordering. investigation of the tensile strength and elongation of a series of cast alloys from the solid-solution rs , at 250? and 300MC showed that the best mechanical properties are obtained with additions of O,S-r1.0silver to alloys containing 3-5% aluminum. Among these investigated two stand out t (1) that containing silver 0.5, aluminum 4.24, manganese 0.40% Me a tensile strength of 22.8 as quenched, 22.8 as slowly cooled, 13.6 at 250?C and 10.5 at 300?C with corresponding elongation values of 17.7, 12.1, 23.4 and 29.5%; (in kg./ m.2) and (2) that containing silver 1.04, aluminum 3.09, manganes 0.27% has tensile strengths ( in the same order as above) of 22.70 23.3? 12.3 and 7.8 and elongation values of 18.3, 20.9, 41.3 and 52.8. Approved For Release 2003/12/04: CIA-RDP80-00926A003100040001-4 Approved For Release 2003/12/04: CIA-RDP80-00926AOD3100040001-4 1946 =WP RIGS HEST RESISTANT MATERIAL "`THRMLTOM UTTR", R. I. ~evaner? Izveat. Akad. R 'ekhn (10) 14314437 (In Rusian). rmitomuUite, obtained by tlo3dschmidt'a therdt process,, is described. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For?Release 2003/12/04: CIA-RDP80-009264003100040001-4 TW INFLUENCE OF SMALL IRON CONTEM ON THE FROPEPTIES OF COPPER AND ALPHA BRASSES E. S. Shpiohi,net-sky and 1. L. Rogellberg (Tsevot. 1ta117, pp. 54-60 (in Ruasian),*4 and R. studied the effect of. snail quantities of iron (o.oo5.O.5%) on tt a rack ica5l properties after deformation and annealing, the min size,, and the --r-al u- i t ras a anae of copper and of brasses containing 5. 10, 15, 20 and 28% zinc. hs effect Of iron on the rexechanical properties of the aIbys 811,80n, "L68", and "L62' at elevated temperature was also eza ned. iron in copper and copper -zinc alloys increases the herdneas and strength f deer sei the elongation, and inhibits grain growth. Iron markedly affect's the plasticity of b ssees at elevated temperatures.. Up to 0.3% annealing at 6Oo?50?C, alloys containing up to 0-15% iron have properties practically identical with those of --% " ir o - re Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Rase 2003/12/04: CIA-RDP80-00926AGN100040001-4 1946 THE STATIC AND DINAMIC COMPRESSION OF BRASSES HAVING VARIOUS ZINC CO N , L. D, Sokolov,. Zhur. Tekhn, Fisiki, 16, pp. 12'77-1282 (In Russian). co preseion tests at a rate of 1 am/sec. and dynamic tests at a !ate of 2000 mm/ceps. were carried out on brasses containing 18, 25, 32, . 38 and 52% zinc. True-stress curves were obtained which enabled a relation to be established between the rate (dynamic) coeff., the temperature of the experiment and the zinc content of the brass. The results of other workers are confirmed. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Release 2003/12/04: CIA-RDP80-009263100040001-4 Russian 1946 QWTSONNAIRR RnUT'ING T MAC ENES AND APPARATIS FO?t C:F A ICAL rF,STIN(a F. P. 1 a,nk?n, N. id... Davidenkov, V. D. Kuznetsov.0 I. A. Oding and I. V. Kudryavtsev? S, V. Serensen, Ta. B. l dman~ E. M. Shevandin (Zavod, Lab. 12, pp. 328-362). (in esian). Reports the answers given by the persons indicated above to questions on the prospe to for the development and invention of improved machines and apparatus for the mechanical testing of n teriaL , Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For RQLease 2003/12/04: CIA-RDP80-00926AQ03100040001-4 n 1946 MIN MMOD OF TESTING T TAL WELT,* E. W. &hevandin (Za-rod, Lob. 12 pp. 736-753) Tn russian. To determine the mechanical properties of thin sheet, S. employed the method of statically pressing out a circular section from a round specimen. Tests were carried out an steel,, aluminum, copper, brass and Thiralumin. The method enables the true-stress diagram to be constructed and all the fun nta1 characteristics of the material to be determinred.. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For.gelease 2003/12/04: CIA-RDP80-00926&903100040001-4 United States 1947 t:.Q r' .d` TN ROR!StLLLI COHMI0N AND T BTPUS-TWPT'URE TEST, U. A. Bleakney; Prat. A.S.T.M,, V. 47, No- 34, pp. 575-595. After presenting a backgrcund of prior work, the author discusses evidence related to the intercMtalline failure of metals, at well as the causes of such failure. Based upon this evidence, a h wtheais it advanced for the explanation of interer talline failures which emphasizes the role of oxidation. Approved For Release 2003/12/04: CIA-RDP80-00926A003100040001-4 Approved For Rase 2003/12/04: CIA-RDP80-00926AQ,03100040001-4 United States 1947 INTERPRETATION {F CREEP AM STMM-RUPTURE D t& , Francis Foi j 3e Progress, V. 51. No. 6, pp. 951:'958. A review including a discussion on the mechanism of flow and rupture in tools. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For RWase 2003/12/04: CIA-RDP80-00926AO$8100040001-4 1947 THE FLOW OF METALS AT ELEVATED TEMPERAT3RES, PART I, II, J. H. Holicmon and. J. D. Luba3nr.; General Electric Review, V. 50, rob. April , pp. 28-32, "-50. The combined effects of temperature, strain, and strain rate upon the stress which will cause plastic flow are anlayzed in an attempt to make possible the prediction of flow characteristics which can be expected from a me ial. under a given combination of those factors. An expression of this nature is derived frcamm relations between stress and strain, stress and strain rang, and temperature and strain rate. (This expression is corrected in a later paper by J. D. Dnbahn, Jnl.s of Applied Mechanics, ASME Trans. 3947, V.69, pp. A229-230). Evidence in offered to prove thvt the stress for additional strain is independent of the conditions which caused the prestrain and depends only upon the amount of that prestrain and the conditions prevailing for the subsequent test. Approved For Release 2003/12/04: CIA-RDP80-00926A003100040001-4 Approved For Rase 2003/12/04: CIA-RDP80-00926AO0100040001-4 United States 1947 z A n 'ATION OF ST ESS* STEIN? TERATURE# MAIN RAT RELATION FOR PLASTIC D `CR TION,, J. D. Lubarm; Jour. Applied Mechanics, V. 14, Sept. pp. A229-230. The derivation and correction of an equation for the stress for plastic flow as a function of the tex persture, strain, and strain rate is presented. The correction refers to the equation as proriously presented in a paper by J. . Hollomon and J. D. Lubahn. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved Fo ,Release 2003/12/04: CIA-RDP80-009260003100040001-4 194'7 $ R S5 RUPTURE 07 HEAT SISTING ALL075 AS A RATE PBE)CESS, B. S. Macklin and A. S. Novick; Metals Technology, V. 14, No. 2, February, 13 pp. Also Al TP No. 17. ore of rate processes developed by Eyring and others is applied to the evaluation of stress rupture for the case of tYnee heat resistant lloys.. equation is derived that gives, for a given composition and struc- ture the dependence of the time for rupture on stress and temperature. The basic assumption of rate process theory is that, the initial reactants in equilibrium. Statistical mechanics and the activated complexes a:eailff yields the equations r .. k as' where r is the rate of the reaction, A h. Fa is the free energy of activation, T is the temperature, k is Boltzmarm'a constant, and h is ms's constant. 'a Fa is increased or decreased by '3 :y- for r in the positive and negative directions respectively where Jr' is the applied shear stress and,3 is a temperature dependent factor. The stress rupture time t, is inversely proportional to rf where A+BT--D ? where A and and B are constants of structure and composition? r.- is temperature, and log B ? E + FT where E and F are also constants of structure and composition; the relation of D to T was obtained empirically. For practical applications, the constants As B, E and F are obtained experimentally. Thus for a given teal, t; . is obtained in terms of ; and T. For the three alloys tested, of the time of rupture on the stress and temperature was verif ea. store, the equation is useful for the interpolation and extrapolation of Me, Since both 49 and the apparent- free energy of activation .R ^ ya(? Fa + kT logo) have the same value for transcrystalline and inter- crystalline failure,, it appears that both types of failure are caused by the d am rate process mechanism, and that a correlation exists between creep an stress rupture. equation obtained shams the relation of the logarithm of rupture it follows that there in a theoretical basis for the use sun sstresss , Log plots for stress rapture, in preference to the coeonly used log-log Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For RerWse 2003/12/04: CIA-RDP80-00926A002400040001-4 tat 1947 PREDICT T4-f : { I TRE T$, P. 0. Me 'ettt,, tai 'rcgresas v. iezae, the iauthor euggestt caution in any ext3rapc tiooo to P. 959-9600 the method for predicting creep strength proposed by Kelvin -2. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Reuse 2003/12/04: CIA-RDP80-00926AOGa100040001-4 1994'? C O R E TIN fi r ' TN S I O W ' 1 P Tfi2T WITH FsL&UTION TESTS, Paper, E. P., Jour, . of Applied Mecth -tca, Trans. ME Vo. 69, .mss P.A. 135-A-142. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Release 2003/12/04: CIA-RDP80-00926AQQ 100040001-4 United States 1947 DISLQC&TION TORY AS APPLIED BY I .A. C.A. TO 1'W, CREEP OF METALS, A. S. )towiok and E. A. ]lachlin; Jour. Applied Physics, V. 18, No. 1, pp. 7.57. An equation for the steady state rate of creep in pure annealed polyorym- tailine metals is derived on the basis of the dislocation theory and of the theory of rate processes. The dislocations are generated by the formation of an activated compbex configuration in a small region. The rate of generation is shown to be the rate determining process. Limitation of the direction of motion of large groups of atoms results in the presence of a lazge negative entropy of activation for the process. When originally generated? the dislocations are probably just one atom long. The lowering under stress of the potential energy barrier is calculated in terms of "back-stress" and of the constants of the material. The creep equations yield calculated values which match closely the experimental data for Al, Cu, Fe,, Sn, and Zn. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For. elease 2003/12/04: CIA-RDP80-0092GA003100040001-4 United States 1947 PREDICTING CREEP S ' ENGTH IN METALS, Kelvin Sproule; Metal Progrese, V. 51, No. 3,. March, pp. /41--442, 440B. The stress-test perature comes of many Bo on metals and alloys are suffi- ciently parallel. After + construction of a chart containing information an other nonferrous metals, a rough stress-temperature curve for copper alloys be obts ed. This in done by drawing a line parallel. to the trend, with . any known value as a starting point. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For R4715ase 2003/12/04: CIA-RDP80-00926A09'3100040001 ;4\, 1947 I`RLC' ERIS" Gs Or VARTOM STEE.lS IN STEAM AT 1200??, d. T. Agnew , &xD and H. L. Solberg. ginsering er .giant Station. Purdue tj rsi t# A investigation it ziah small tens ,le epeafinens made from low-carbon; 2-1, C r-1%MQ; 5% Cr-M i;- 9% Cr - i; 3. Or; Ore,, Ni; 25% O P. a e ressed in tension for periode of time ranging from 10 hours a. A to rupture,, elongation, reduction in area, depth of scale r, and type and angle of fraoture. 3, rat. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For ft lease 2003/12/04: CIA-RDP80-00926&003100040001-4 United States 1947 STABILIT! (F STEEL AT ELEVATED WBUTt3 S, A. B. Wilder and J. D. ' ylon, .q4tA& 7l . - -1 "A l1-4. h A - "St.. .tee ? w..a a - Sect of extensive research programm bding cc zcted on high temperature 9 materials at rational. Tuts Co,, Lorain, Ohio, Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Ratease 2003/12/04: CIA-RDP80-00926A@93100040001-4 States 1947 CAST MAT IESISTANT ALLO' OF TIM 26% 0r-20% N1TrP1, PART is Toward S. Avery afri C. R, Wi.ks, r3cur3 Society for Metals Preprint No. 16, 1947, To be published in Trans. for 194$. Data cover: nchanica2 properties at room temperature; stress-rupture and creep properties from 1200 to 2 ?F; them expansion; resistance to car- burization and hot gas corrosion;; and several mod, mall aneoue properties. The .~ __ ade is suggested for general hot-gas corrosion resistance, It is *lso suited for carburizing service when fortified with about silicon. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For F ease 2003/12/04: CIA-RDP80-00926AOA3100040001-4 United States 1947 OAST HEAT RESISTANT ALI0T OF TM 16% Cr 35% Wi . Matthew i Trans. A$M V. 38, pp. 957-1022. a. Ike: II ward Avery and Norman An extensive analysis of the pw,;pertiea and performance characteristics of the "IM. type cast alloys is presented (and significant comparisons are made with the "RH" type alloys) an an aid in determining the applications in which they mi, t offer superior service,. The "HT" alloys were found in general to have superior creep strengths at 1400*F (about psi for 0.0001% per hour) but showed about the some creep strengths as the RR alloys above 1600?F. Although the -m- a logs were less resistant, to attack by hot reducing, sulphurous gases, they had better resistance to carburisation, and had superior hot ductility effect of restrained contraction due to cyclio temperature seerviO4 scuesed with emphasis upon the resulting thermal fatigue Approved For Release 2003/12/04: CIA-RDP80-00926A003100040001-4 Approved For Release 2003/12/04: CIA-RDP80-00926AS03100040001-4 194? COBALT BASS AND NICKEL BASS ALLOYS FOR ULTRAHIGH TEMPFATURE, P. S. Badger, Jr and P. 0. Kroft, dr.; Metal Progress, V. 52, September, pp. 394-402. This paper represents a collection of high temperature test data on a nun of cobalt-base and nickel-base alloys used during the war for critical portions of high temperature equipment. Those tests include aging, short-time tensil.e$ stress-rupture,, and carburisation tests. Tables,, figures and photomicrographs are Included. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For lease 2003/12/04: CIA-RDP80-009264603100040001-4 ited States 1947 eOPM OF S( FT ALVAc 1.*-M iUM-zINC A3LO!S AT th and N. Prober, Headquarters Air 16+m"isi Alloys with varying zinc and magneeiua contents have been tested to determine t M eep a tarmperatures .'rom 90 to 1M! C. At the came tine, other physical ch in magneeimpe have poor creep. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For" Release 2003/12/04: CIA-RDP80-00926M031000400Q1- tee 1.947 MGM t ALU : WERTIM rAL 1ZT MINATION OF VALUE AT THE 6TI1 OI T, Giordano ?runij Metsl Industl7,, V. 70, No. 4, pp. 71-'729 strength of alb at 660?? vas found to be 550 psi in the solid state. moth the annealed metal and rolled metal curves for tensile strength ra ture converge toward that value at the melting point. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Release 2003/12/04: CIA-RDP80-00926AO1}3100040001-4 United States 1947 THE CRFEP CIA. .CT ISTICS OF COPPER AND S COPPER AlLOYS AT 300, 400 and 500?F. Burbhoff, H. L. and. Blank, A. I., ASTIR Prue. V. 47 Pp 725-^753, discussion p. 754. 1'lectrolytic copper, open free coppers, deoxidized copper, arsenical copper., red brass, admiralty, alb brass, Naval brass, 3% silicon bronze, phosphor bronze, 1.15 Ni, .23 P, 98.57 Cu alloy and 98.09 Cu, 1.11 Ni, 0.51 To, 0.28 P alloy were tested. Creep data including total creep, creep rates and relative creep strengths are shown at 300, 400 and 500?F. Tensile properties and nota- tions on mirostrueture of the test materials before and after creep testing are given. I. The coppers - Of the four types of coppers, arsenical copper has the greatest creep strength. Deoxidized copper ranks second, and electrolytic copper and oxygen-free copper, whth have very close creep properties rank third, This order applies to both annealed and hard-drawn tempers. The narked superiroity of the arsenical copper over the other coppers is largely derived from its much greater stability with regard to softening at elevated temperatures. The creep taste which were made on the deoxidized copper as stretched 1 and 6% after the final anneal are summarized. The effect of the 1% stretching is insignificant at all three test temperatures, but the 6% stretching produces a definite increase in creep strength, particularly at 3003?F. The strengthening produced by the cold-work diminahes with increasing temperature of exposure. II. Bed Brass - The annealed material is shown to be superior to the two drawn tempers at 50(?F. Admiralty and aluminum brass - The creep characteristics for annealed tempers of these two alloys are similar to those of 70-30 brass. The tin and aluminum in these alloys contribute little creep strength in annealed tempers. The influence of grain size for the annealed alloy is insignificant. The creep properties of both alloys in drawn tempers are closely associated with their softening characteristics at the three elevated temperatures. IV.. Naval Brass ?- The creep rates for the two tempers of this alloy at 300 'OF are nearly equal I for stresses in the vicinity of 11#000 psi. For stress lees than this the annealed material has the greater creep resistance. For stresses above 11#000 psi th1 drawn material has greater creep resistance. At 20,000 psi, the annealed metal had entered a stage of accelerating creep rate while the drawn material at 24,900 psi still extended at a decreasing rate at the end of the test period. The stress-creep rate curve for the drawn temper of this alloy at 500?F shows an accelerating rate of creep. onze - Additional data agrees very well with previously published wor k. VI. Ap? W d '$p lea 2 %?21 : 4AD "0 05 IA40$af 0d1)4 1)dt&y superior to Approved Forllease 2003/12/04: CIA-RDP80-00926&3100040001-4 that as drwm for stresses below about 15,E Psi. For higher stresses the trend idth respect to temper is reversed. For stresses up to at least 14,000 psi at 40?F, the annealed material is definitely superior to that as hard drawn. 'ICI. Ago-hardenable sapper-nickel phosphorus and copper- nickel-phosphorus-tellurium alloys. were found to have very high creep strength. Severe cold working of the coppernickel-phosphorw$ alloy after heat-treataen6 produced the greatest resistance to creep. Both alloys are susceptible to enbrittlement for conditions of exposure which are severe with respect to stress and t aperature* Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For ikelease 2003/12/04: CIA-RDP80-00926Q003100040001-4 United States 1947 THK APP 1 INFLUEME CF SIN SM ON TNT HIGH TWMATME PROPERTIES OF AUSTENITIC STEELS, 0. L. Clark and J. A. Freeman; Trans. A.8.L, V. 38, No. 19, pp. 149-1119, The effect of grain size on the high temperature strength characteristics of four Austenitic steels (18-8,, 18-12 + Cb, 25-.20,, and 25-12) was determined from shot-time tensile, creep, and stress-rupture tests at temperatures of up to 18}0??. Broad generalizations could not be made since the effect varied from one Austenitic steel to another and other changes (such as the appearance of an unknown phase) had a marked influence on the mechanical properties. Only slightly superior high temperature (above 1000oP) creep and stress-rupture strengths for the 18-8 alloy were obtained with large grains; however, for the other alloys tested, the coarser grained structures were many times stronger but less ductile than the fins grained steels. The author suggests that a better combination of high temperature strength and ductility might be possible if more information were available on the unknown phase which accompanies fine grains in these latter alloys. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved Fo%Release 2003/12/04: CIA-RDP80-0092 003100040001-4 United States + estio strength * "lark 'a, rep: VI, T OF CHC UM STEELS WITH MCL.I EN TM A eaa, v. 51 April, p* 610-631 George validity of in?ormattan concerning the. high-temperature + Ti) ateela, reported by 0. L. Clark in December 1946 1 icl ed. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Rase 2003/12/04: CIA-RDP80-00926A$3100040001-4 Mited tates 1947 ALLOYS FOI GAS TINE SERVICE, ". A. Crawford, Transactions v. 69, ?ug p. 609.612. o nickel- se a :oys for gags turbine appiiontions at temperatures upto 3 possibly, higher. Incouel X in a wrought mterialo readily forged ded, vdth high rupture strength at all temperatures. The second &L 10y X'esistanoe in the neighborhood of 1500"'F. al primarily suited for edtended service appli,eation requiring Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Release 2003/12/04: CIA-RDP80-00926AQ03100040001-4 united States 1947 A N 'ALLI ICAL INVESTIGATION OF LA RIE FORGED DISCS OF P-CARBON N-155 ALLOY, Toward C. Gross and J.. W. Freemanj NAC,A Technical Note, No. 1230, April 20 pp. A #Wdy of the creep properties of three larje forged discs of low carbon N-155 at room temperature, 1200?', 1350?, and 1500 F. One disc was tested in the as forged conditions the other two in tr he solution treated and aged condittona. At 1}?F the as forged disc has properties superior to those of the other discs. At 1350?F, the properties are almost equal,, Particularly at the lower stressed. At 1500?F the heat treated and aged discs are superiors particularly at the lower stresses where the deformation rates are small. Aging at 1350?F rather than at 1500?F oducaee higher strengths; some of the benefiaia1 effects still remain at 1500 . The impact strength and ductility decreased after creep testing at 120O?,, 1350?, and 1500??. The tensile strength increased after creep testing at 1200? and 1350?F, but decreased slightly after creep testing at 1 '?0??. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved Foi elease 2003/12/04: CIA-RDP80-0092GQr0031000409 EVALUATING HIGH BUT PROPER OF S IE, %rbext Dobkin, Steel, mV. 120,0 April R&gn .ficanee and methods of measuring elevated-temperature properties Pari+oua stools; the type of matdr a generally used in -high.-temperature Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For IWease 2003/12/04: CIA-RDP80-00926A03100040001-4 TSnited States 1947 TM DEVELOPMENT OF A TURBOSUPWRCHARoER BUCK 9T ALLOT, B. Epremiam; Trans. ASM V. 39, No. i, pp. 261-280. In order to obtain an alloy 'which would be suitable for the high temperature,, high stress service required of turboaupercb rger and gas turbine buckets, the effect of variations in the amounts of chromium, nickel, tungsten, and molybdenum in cobalt-base alloys was determined. The composition of an optimum alloy was deter d; designated as X63, it had the following composition: C 0.4-0.5%, 0.5%, Si 0.5%, Cr 0.25%, Ni 10%, Mo 6%, Co balance. This alloy, chosen on the basis of rupture test data, was subjected to additional tests,. to determine tensile strength (70,000 psi at 1500?F) and ductility (12% elongation for one inch ate1500?F), impact strength of 1/4 inch unntched Charpy bar (25 ft.lbs. at 1500 F)* coefficient of expansion (18.4 x 10' in/in/?C) thermal conductivity, specific gravity;, hardness, creep resistance, damping capacity, fatigue strength, and oxidation corrosion resistance. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For lease 2003/12/04: CIA-RDP80-0092&"03100040001-4 i.ted States 1947 HIGH 'EMPE TURE DIBX FORGING MVFJ.OPME1ft3 FOR AIRS GS I .S, L. S. Fonda Steel rocessI nga, v. 33, Aug. P. 469-473, 486, 491, 5OC -5O2. Type 1.?40 turbine wheel, with its buckets, comprises,--the high temperature rotating parts of the jet engine powering the P-80 airplane. Bursting tests on turbine wheel blanks and bucketed turbine *heels. Cirouuwtances behind this investigation, the type of equ..pment useds the various alloys and forging p ooticea investigated, and comparison of the results. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Reisase 2003/12/04: CIA-RDP80-00926AQJL3100040001-4 1947 AN INVESTIGATION CF THE HIGH TEMPER TURE PROPE=ES CF CHROtUM BASE ALWTS AT 1350??, J. W. Freeman, E. E. Reynolds, and A. E. Whites NACAj Tech. Note. No. 1314, may, a pp. hro 1 um base a11078 ire rupture tested at high temperatures. The rupture strengths of 55 Cr .. 25 Fe - 20 No and of 60 Cr - 25 Fe - 15 to are ertrealy high, that of the 55% Cr alloy being 73.0o o psi at 1350?F. 0.05% carbon and about 0.6% silicon. The alloy can be machined and fabricated, and techniques have been worked out for the casting of buckets. The 55% Cr alloy has the drawback of possessing poor rocun temperature properties. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 tae 1947 AT- SiSTANT ALLO FOR USE IN JETaPROOTJL&ION SLIGINESp J. W. Freeman, E. X. Reynolds and A. E. White; dour. zero.: aieme, V. 14, Do*. pp. 693-702. Compositions and mechanical properties are listed for some twenty alloys. Their use is discussed. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Release 2003/12/04: CIA-RDP80-0092643100040001-4 United States 1946 CORP MTS 0f SOW, EXTRUDED LEAD AND LEAD-ALLOY SIEEV 'S AND TAPES., G. R. aohn S. M. Arnold.? and 0. 1. Eouton; Proc. ASTY, V. 446, pp.. 990-1024. The report covers extensive creep testa with particular emphasis on long time (up to 70,000 hours), layer stress tests. Test s ecimens were from commer- cial lead cable sleeves (of 6 different c cmpoeitions and from a number of experimental lead'.alla taper. The tests were performed at 00-85?F` (except for a very few at 20?F) an directly loaded flat specimens of 3 gage length. The authroo ford that for high stress use (above 750 psi) the 0.9 percent antimony and 3 percent tin allolns showed the greatest resistance to creep; however, for low stress applications chemical lead showed the beat resistance. For a maxi=m stress of 100-150 psi the chemical lead specimens showed no measurable creep after 60,000 hours; all other alloys evidence some creep in that time even for very low stresses. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 United States 1947 TM STRESS R8PT R AS CREEP PROPERTS 0! HAT RESISTANT GAS TURBINE ALL028, Nicholas J. Grant; Trans. ASM, V. 39,, pp. 368?-403. A largo number of rupture and creep tests at 1500? to 1800?! (815? to 980?c) and at stresses from 7000 to 15? -'0 pet in creep aM. 15,000 xWt to 35,000 psi in rupture were made an a aeries of y3'a3:'3.ium-base (cobasltwchr nz mmolybdo ) and niolml-chr a obalt-iron base alloys. The variables etvdied primarily were the effects of increasing amounts of carbon and nitrogen on the 'hot strangt1h and ductility of these alloys, the role of heat treatment and aging, the relation-- sbip of the stress to the rupture time and to the mini== creep rate measured in both rupture and creep tests. An important relationship was shown to eximb be- tween tine at temperature and the resultant ductility at fracture. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Release 2003/12/04: CIA-RDP80-00926A`M3100040001-4, ted Stakes 1947 WRUTIONS IN GAS T MM ALWM RE ED B 7 Nichol J. Grant, 'as, Amer, 300. ital s, . 31 p. 33 39. To In oxder to determine y occasional bast hi gh emperatiw higho trength - , , alloys of the CouOr-ll Ta system failed to jr odupe consistent results t) effect - +oaZ preheat ani me1.-casting temper attires an rupture properties `8 in preei ion in est nt casting. A distinct re atipnship exists aang temperatuxe, at the maid and metal, the struotufal Tarriables of and rapture and dWtiiit * properties. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Release 2003/12/04: CIA-RDP80-00926AQQ3100040001-4 United States 1947 (L-ants, N .0 Tr p. 28]. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Mr-ease 2003/12/04: CIA-RDP80-00926A3100040001-4 United 8ta to 5 1947 1La- SUP YRkLLOIS, PART I. Walter 13. H31dor!, Western thine and Steel World, V. 3 g Aug. p. 88w-91. Requitemen s for auperalloys fur h.1gh-tempest u e in gas turbines (to be continued). I Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Release 2003/12/04: CIA-RDP80-00926AD03100040001-4 United S 1947 SUPERA3W , PART II, Walter G. Hldorf, Western Machinery and Steel World, V. 38.9 Sep w. p. 126-129. Concludes a raar7 of tha properties of 16-25-6 alloy (16% Cr, 25% Nis 6% 'ode) an affeoted by va:rioua trI RI8GAL NT 1,,'.::L. LL : FRV)PUBTA DI Scold? s NT 0. (An interrupted t ep `est. Inluence of Xnterruption of Heating and of Applioa ion of Imd on the Process of Crsep). L, `Matteoli and D. Anch a nf.,* Ira Metall is Xtalinna, v. 39, rch- April, 'pf 71?81. of a imcaitansous and of erpparate brief interruptions of the above were investigated for a steal oonUnize 0,20% C 0.71% Mn, 0 ?788 Gr, 0.27% Mo. A 150-hr. and a 1 hr, hest at 5004C wera applied. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For R&ease 2003/12/04: CIA-RDP80-009261 63100040001-4 1947 DE I P A,STE STAMAM N t e a # i~ R x+317 I!Io Z ~ net1en, To It April* p,, 2.33-13 ThO deve1opMOnt of various heat resistant steels Sri h spa cie attention to US impro ement in strength at high temperatures during the past five y rs of alloys for turbosupercls rgers eat: aricrtft g+a turbines. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For.ilelease 2003/12/04: CIA-RDP80-00926f4O03100040001-4 1947 BRITISH iNT LLIaACE Oi3 Th;CTIV'ES SUB COMMITTB E, dapai ee metallurgy, Alloys for Gas Tur nes, ?beket Nozzles and Linea. (Report No. BIOS Cr. 4to pp. 1.2 London R.M. Stationery Office. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Release 2003/12/04: CIA-RDP80-00926AQD3100040001-4 UiBCLr't7 OF THE STS{3S: STATE Or MA3'Le` W TUB, Ezhanits n, A. R.S Tech* Pbys.. R 17, No. 7. Do. 491.6: (In mien) onrpw fwun P ics Ab- A studtlr to m de of the behavior of bodies displaying creep characteristics, from standpoint of arbitrary representation of the structure, for a non. uniform substance, +coWring the pares of the amain str ature. In contrast to the usual representation, of absolute elasticity of the solid fraamtork, providing a linear relationship bets stresses and deformations, and clarifying only the reversible press es, the solid substance of the body take* on properties characteristic of n lastio bodies. Coaoaeequently, several, vall-bumn facts c er . the be rrior of Plastic-slestio bodies under alternating stress be singly iacterpreted. A graph cal solution of the probleeea is gig. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Reiwase 2003/12/04: CIA-RDP80-00926AOW100040001-4 Russia 1947 A ETUDE' OF TT 1 RELATIO EHLF BETWEEN RESISTANCE OF M 'TAW OR AUMPHOUS HODS TO PLASTIC DEFOR A I'IOM AI' DT.I SPEED AND TE RATURE OF DEFOI MNATION, L. 1). Sokolov, Z ur. Tekhn, Fiziki (In Sian) V. 17, No. 5r pp. 543--543, An investigation of the true stresses produced in a variety of metallic and non.metallia materials when sub jeoted to static aid dynamic compression taisu at various tomperatures. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For ReIL se 2003/12/04: CIA-RDP80-00926A0 100040001 s 1947 DEP ND 8' OF TBUT RI CE OF ALUMINUM ALLOW ON THEIR: COW ITIUN AND Sian) A. A, Bochvar, Iiveatiya A~emii Nark SSSR Otdele _______ -s ,- _ Te .ches eh .Nark (Bulletin of the Academy of teiences of the USSR,, Section of Teeha i ;e1. , ie ee, Oc}t. p. 1369-1384, A Vapid a diary method for high-temperature performance determination is proposed.* based on the gradual chaan;e, with time of loading,, of the she of impressions obtained by forcing a macro or micro-indenter under constant load into the epechi n. On the basis of data obtained by the above method and also by standard creep testing, it is believed that the beat resistance of alloys results from heterogeneity of their ex7stael structures,,. and also may be caused by the formtion of screen or skeleton-like inclusions of solid phases on the grain boundaries, Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Reiee[se 2003/12/04: CIA-RDP80-00926AG 400040001-4 Asia 1947 ~ ~-k Wit'? . (-< C. ; - x \ Zharouporny Splav. (Heat Resisting Alloys), (BOOK) Vol. 3, I. I. KornSDv. 120 pps. Acadezty of aiencea of the USSR, Moscow,, USSR. Results of theoretical and experiment l investigation of the me? t important factors in developing heat-resisting alloys. Solid solutions of iron with a series of alloying elements more studied thoroughly,, particularly regions of the constitution diagram which include heat resistant materials. It Is shown that the ternary system Fe-Cri represents the most important combination of elements for use between 800 and 1500?C. Tv* alloys have been developed and Lured industrially in the USSR,, replaoing the Ni-Cr alloys and platinumm. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For ReI?e 2003/12/04: CIA-RDP80-00926A00.W0040001-4,. ; 1947 . CT TEST OF STEELS AND ALLY AT HICR TEMRATUFM (In Sunsian) A. B.. .1 ian and Q` v. 'stul3n. Zav kay; Laborstoriya (Marta Laboxatorg) T. 13, Oct. P* .8-1.2210 A spoially s signed f rna re and testing apparatus. Reeu'ita of testing of carbon Steel, with and wit out 0.1% Pb, frc a 800 to 2200?C,, and of 18-8 st a eas steels containing Ti., and also W, at 202 600 and 70C?C. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Reiedse 2003/12/04: CIA-RDP80-00926A0Q100040001-4 1949 Ct JN OF TENSILE CRAP TEST WITH RELAXATION 'BEST", Irving Roberta; Jour. Applied ah. V. 16, June, p. 268. lAw- yva wsaunim uAa eo 4ui%yu2.ua.L uojuT,3-ons Too Tone Dolt relaxation proble>n, ?s0 based upq'n empirical creep data equations, may be obtained by direct aubstitu- ti6n,rather than by differentiation and integration, as was doen by Soderberg (Tins.. *Suit V.58, 1936s pp. 733-743) and by Popov and }i uaner (Jour. Applied Mee x. 1947, p. A-)35 and p. A-352). Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For RMase 2003/12/04: CIA-RDP80-00926AMM100040001-4 teen 1948 P714STIC FOW, CREEP, .A STRESS RELAXATION. IV * ANO ALO FLOW AS AN OMZR* DISORDER TRANSITION, Charles Mack; Jour. Applied Physics. V. 19, No. 11, Nov. pp. 1082-1091. Plastic system show effects of steric hindrance at rest,, which results i h a molecule preventing its neighbors from occupying certain positions and introd oes a oertai r degree of orientation. Under stress map more positions,, resulting from the rotation,, are forbidden to a molecule in motion. In order to make more positions available,, it is necessary for the system to insreaae its volume under stress,, and a change from a state of greater order to one of greater disorder results. Based on this concept, equations relating the strain- rate at constant temperature to the stress, change in volume,, and degree of order-disorder are developed. The changes in entropy and interaction energy accompaMlmg the strained state,, are expressed by a generalized partition function. This concept of anomalous flow is extended. to visco elastic effects for systeaa with rubber-like elasticity. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Rase 2003/12/04: CIA-RDP80-00926AQ 3100040001-4 United States 1948 J. 0. Lasoheny R. P. Carreker and J. H. Hollomani Metals Tech. Pub. 2676. Theory on nucleation and growth of slip bands. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Reisase 2003/12/04: CIA-RDP80-00926AOQ, 100040001-4 3949 k11 IIE R. D. Heidenreich and W. Shockley; Report on Conference on Strength of Solids, y-}* 60, Phy's. Soo*, Londone tudy of slip bends in creep. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Re se 2003/12/04: CIA-RDP80-00926A0Q,3.100040001-4 United States 1948 F.ATIOI- IT, B. Gross; Jour. Applied Ph i V ys cs, . lg, No. 3, 'chx PP* 257-264. In a previous paper the theory of transient effects, caused by the sudden application of a constant load or a constant deformation, vac presented. In the present paper, the theory of steady-state behavior under alternating load and deformation is developed. The principle Of superposition is used in order to fornulate a Phenomenological theory of the elastic aftereffect. Relations are established between the loss factor, the storage factor, the distribution :functions, and the Laplace transforms of the creep and the relaxation functions. The dynamic equation of motion of the vibrating body is established on the basis of the mechanical properties of the system, and of the stress-strait relation iieh is governed by the principle of superposition, Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Release 2003/12/04: CIA-RDP80-00926ADW100040001-4 Visited States 1948 UST I 2-I ES T&W ALLOYS OF THE 26% Cr-20% Ni TYPE,, Rcvrard Avery and Qiarlee Wilke; Trans, AS] , No. 16 pp. 529.81. The 26% Cr - Ni cast alloys have been ermined. The ro ratare hanical properties, the carbuxUation and corrosion resistance, and the stress rupture and creep properties in the 760-1095?C temperature range are discusses. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Relftse 2003/12/04: CIA-RDP80-00926A01 3'100040001-4 ited States 1948 ~ k-ktt'.a. T PLASTIC tEFORM&TION, R. P. Carreker, J. G. Lesohen and J. D. Lubahn; a Technology, V. 25, No. 6, Sept. 8 pp. (AIM TP No. 2477). Experiments we a undertaken to confirm the existence of transients in the strain rate which occur wherever the applied stress in a ixidenly changed from one stress level to another] the discontinuity in the strain rate is followed by a gradual approach to an equilibrium value. Creep tests were carried out on lead,, copper, and aluminum, and the strain rate was measured optically. In addition, stress-strain and strain-time curves were obtained from tensile tests conducted on similar specimens. 59 results i ndt:cate that the magnitude of the transients may be quite large. Cynic loading produced more deformation than the maxim= lsed employed would have produced during the same period of time. It is to be expected that as the length of the cycles becomes greater than the duration of the transients, the effect of the transients becomes less important. The mechanical equation of state is shown to be a special case of the nucleation theory which successfully predictied the transient. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Reuse 2003/12/04: CIA-RDP80-00926A0'AS100040001-4 'kited States 1948 AN IN T ATi4N OF CREI*' F.3 ACTURg, AND B NDIN OF LFAD A MAD ALLOYS M. CABLE SHTIATI tN'G .. SERIES 1946, Curtis W. Dollies, Univ, of 111.1 Etginsergin 1 eririent Station, bulletin Series No. 379, J.-y, 1. 90 ppa. Results of creep tests on strip anti full sections of lead--cable sh'll. Load P.lloy show considerable recovery duri cyclic losing. Data are given which irayy account for the wide difference in the amount of creep obtained in laboratory test a and field tests. Stress-rupture tests in which ices of ductility as ti for fracture is increased is very corked. Bending tehinee for testing the bending resistance of sheathing in strip form or extruded on eat The varked superiority of the arsenical leads is shown by both strip and cable bend tests. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Re[se 2003/12/04: CIA-RDP80-00926A0Q,3100040001-4 as 1948 SOME EFFECTS CF APPLIED STRESS ON PRECIPITATION PHENONENA, 1. L. Finlay and I. N. Hibbard,, Jr,i Metals Technology, V. 15, No. 6, Sept. 18 pp. (AIDE TP No.2470). It In believed that precipitation and solution shearing vents constitute structural weaknesses which might cooperate v th applied stresses to facilitate plastic deformation. It is also believed that the hydrostatic pressure affects significantly the degree of disregistry across the matrix-precipitate interface and consequently affects the age-hardening. binary systems were investigated, 12% Zn-Al and 4% Cu-Al. The effects of uniaxial tensile creep at high aging temperatures, and of hydrostatic pressure during aging at high temperatures were investigated. It was found that solution shearing facilitates plastic deformation. It was shown that precipitation does not increase the tensile creep extension of 4% Cu-Al, but increases that of 12% Zn-4Al, as does solution shearing, This,, presumably because transfozmation mechanisms are complex in the former alloys and simple in the latter; the 111 planes must participate in the shear in order for the creep extension to occur, and precipitation shearing must affect those planes in order to contribute to the creep. Hydrostatic pressure tests show that aging increaaee coherency (and hardness) in the 12% Zn-Al alloy and reduces coherency (and hardness) in the 75S Al alloy. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Rekease 2003/12/04: CIA-RDP80-00926AQQ3100040001-4 1949 A STUDY OF TI- PROPFF TII OF 0.5% CHTh)UUM -0.5% MOLYBDENUM PIPE ST... , R. C. Fitzgpralc, A. H. Wilder, 0.. V. Smith, and. A. S. White, Welding Jour. s V. 27. Sept. pp. 457a-469x. An investigation of the mechanical properties,, including creep, and of the fabricating characteristics of this high temperature steel, reveals the properties and characteristics to be essentially the same as those of a 0.5% molybdenum steel. However,, resistance to graphitization, to oxidation, and to embrittlement is good. Excellent creep properties were obtained in nests at 1000?F. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Release 2003/12/04: CIA-RDP80-00926AO 6100040001-4 United States 1948 HIE}H `1iP R&'U PROP ;RTl or ROTCR D1SIO FOR US 3.BINVS AS ArCTED BY VARTABLS IN PROCI WIND, J. 1, sreeman, H. C. Cz s1 and E. I. Reynodls and W. Ir`. Si=oaa. American Soo. for Testing Material, Adverse Reprint Pron, of the r. Soo* for Testing Uaterials, v. 49# 36 ppe. Results of high-temperature tests on 24 large forged d9.skat of eight heat resisting a Llo , both low and high ally. Short-time, tension, rupture, creep, and streo+ims for total deformation characteristies were detexnmined at 70, 150 and l F. 14 ref. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 AppToved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 ~V 4 yj k '' U.it.d StatOs 190 .as or M 1465.9 mu ooh. Note , RUMM T CAA A.CTM Re o1de, and A. E. Whit*), 9 op. j. 1. Free: ~ ? Feb. 61 PP aQa`~ and 1~ at l7 i' O }r~latias ,..,~_~ the rI uz type alloys, i oriel alloys 'ire are Pze~-+stan.ck &11078.v ea` ty of gtoadard t hrtava at$ other bigh temperatures alloys- Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For elease 2003/12/04: CIA-RDP80-00926AA03100040901-4 11 "tested motes 1948 A T's IQAL INTIGATION OF M GAS TURBINE DTS OF TD MN ABC, 1. 1. Freems` Z. R. Reynolds, and A. Z. White, National Advisory Comm. for Aeronautics, och. Note No. 15310, ,fir, 55 ppe. Tests to determine repro ucibilit7 of properties of disks ride by different ffect of various fabrication procedures on disk t e e ocupeni e s and toy investiga proportion. Properties at room temperature and 1200??`. Tests indldded short- tie tensile,, atrass pture, creeps and hardness, along with a meta11ographic ,s up I tton of the materials before and after testing. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Release 2003/12/04: CIA-RDP80-00926/}03100040001-4 United Rates 1948 P TWO CONT R-F GAS-TURBM DISCS CF 19-9 * E. B. Esynr23e, and A. E. White, Nat. Advisory Cora. oh. Note.. No. 1532, Sept. 37 ppe. ,ate to determine the level of properties developed in large orgings of the alloy, to evaluator the offset of the temperature of .d work in these large forginge, and to show the degree to*hieh the properties bar stock can be reproduced in large forgings. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For I ease 2003/12/04: CIA-RDP80-00926AA03100040001-4 A )EM LOGICAL INUSTIGA tT?S C " TWO LARGE D CS OP C ALL ' I. E. 1 8nolAss .J. . Freeman, and A* E. White, ations7. Advisory Co ittee for Leron utiae, . Note. No 153Es Sept. 33 ppB. to of a study of properties at room temper ture and 32OQ"F. Aging ,e i enetioial to rupture properties,! while no effect on t ennile, hardaese ore3atton properties eras observed. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Release 2003/12/04: CIA-RDP80-00926Afi83100040001-4 United States 194? THE EFFECT OF SI PEMNTA OF SILVER AND COPPER ON THE CAP CHAR CTERI8T CF EZTRUDI IFADt 0. R. Gohn and W. C. Elie; Pro*. ASTM, V. 48, pp. 801-x'1.4. !reap tests on extruded lead pipe specimens reveal that silver contents to 0.010% improve the creep resistance at stresses of 400 psi. and a , he higher the stress level, the greater the impfov nt. The creep not i npraved by the further addition of 0.061% copper, or by any further ver additions. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For R lease 2003/12/04: CIA-RDP80-00926A 103100040001-4 United States 1948 TE C08ALT UE J A 3k AT 1350 to 1800?P', Nicholas Grant; Trans. V. 40, No. 1'7s pp. 585-616:. Using ordinary vitailiumt as a base, a new alloy (J alloy) has been developed which ohm roved rupture properties in the temperature range from 1350E to 1800?F. he optinum carbon content was established at about 0.76%, this ptimum carbon alloy, when tested at 30,000 psi and 1500?F had a 500 hour rupture life. In addition to the higher strength, this alloy is more stable and is more easily reproduced than the previously reported Co-Cr alloys. The optima aging for the d alloy requires five hours without load at 1350?F. The creep resistance of the J alloy is about the same as the creep resistance of the Co-Cr alloys previously mentioned; hotsver, its room temperature ductility is somewhat less. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Ret6ase 2003/12/04: CIA-RDP80-00926AN310004 004-4 United States 1948 A SMURY OF .T 1 ISUM ALA P1 31 1200 to 800??.,, Nicholas J. Grant, A. F. Frederickson,, and M. R. Taylor. Iron Age,, V. 1610 Rim. 180 1948, p. 73.78 April 8, 194$, p. 115-81.1 April 15, 1948? p. 84493. Con ated as a project of the U. S. Navy Bureau of Ship*, this sumar7 correlates and evaluates data produced over the past seven years by various industrial and governmental sources. Relative stress-rupture data,, and crew properties at various temperature levels. Compositions of acne 53 alloys, together 'with physical property data for most of the alloys. Effects of temperature,, grain size, composition, and aging on rupture and creep properties. The degree of control neceeeay to standardize these variatbles. Stress-+to- rupture and elongation values for some of the more promising forged and cast alloys at various temperature levels. Relative mechanical properties of the . Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For&elease 2003/12/04: CIA-RDP80-009266 003100040001-4 United States 194 M VJ S POP WON TEJJ7,EIA TU SERVICE,, P. A. Pip Sept, p. 89-95. 'Iron Ages V. 162, Results of experimental investigation prompted by frequently encountered warpage, buckling, and ultirate failure of metals currently being used in such assemblies as jet exhaust 3tacI, tail, cones? combustion chambers, and exhaust aw.ifoids. The effects of repeated flame impingement on common hig t zperat-ire alloy and composite (clad) materials. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For R&*ase 2003/12/04: CIA-RDP80-00926AQ93100040001-4 MELMINT OF CAST ALUKIWWE ALLOYS FOR EI ATED ?PS a. TMtg SERVICE, Webster H dges L. W. Eastwood, C. H. Lorig, and H. C. Cross., National Advisory Comm. ron uti,e, Tech. Note. No. 14",, Jan. 32 pps. ate of heat treatment and exposure to elevated temperatures on the properties of various alloys subsequently Cooled to room temperature; or ?various alloy additions on the room and +elevated-temperature properties a u inum alloys; and improvement in high-temperature Creep Properties, Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For.Belease 2003/12/04: CIA-RDP80-009294003100040001-4 f' o41ci~5r 1948 AT T M ~.T"i ' : TIWI A N D C WP P R O P O R O F ? 1 V O R M AM A S L, R. keon, H. C. or"## &W J. U. Berry; N&CA 48 pP. ;te strength. fatigue strength, ereeep properties, nted on the tenai . &w4& arepxwse and theeraaea3 expaesion of various forged almimm alloys; the data are petitesnt the application of thse ailo n in the temperature range ft m 7fl to 8403?`7. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For R ease 2003/12/04: CIA-RDP80-00926P 3100040001-4 States 1948 t,A q W'V t`~`s THE #WOM AM ELEVATED 1E EPATMM PROPERiIM OF SOME SAND-WT M&GFWIM&-BLSE "TS CQ NIM ZINC, howl Lemtie; Metals Technology, V. 15, No. 4, June, 35 pp. (A TP No. 2371). An investigation of the tensile properties, hardness and creep resistance of lk-Zn alloys. At temperatures up to 30!?F, the properties improve progressively with increasing Zn content in the composition range of 0-106 In, and ;a rticularly range of 0-6% 7n. Further improvement is achieved by the addition of a third element such as Al,. Cdj, Ch, Sn, Co, Mn, Ag and Zr, or by the addition of 1tio n of such elemenbe. Zr or Mn additions produce alloys with axoellent nd creep properties which are superior to presently used commercial sand casting alloys AZ92-STA and AZ63-ffiS at high temperatures,, and which fihermore are not inferior to those alloys at room temperature; these alloys contain 6% Z n and either 1% Zr or 1/2% Mm. Mg-Ce alloys, however, have superior high temperature properties, but have little ductility and poor room temperature parties. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved ForQelease 2003/12/04: CIA-RDP80-00926MO3100040001-4 "c ited States 1949 BMCT CF T MP RAT OF COLD ROLLING, T 1d? AT R OF T. L AND R3ATB OF PULLING ON TENSILE I'ROPERTIHS OF AUSTENITIC STAINS STE WITH L4DW NICKEL Cfl 2aT, R. A. L oln and I. H. Hattaer, American Iron and Steel Institute, 22 p pen dieeuiajorz p. 17-22. Orals vith alloys containing approximately 1 Cr and a little Joe. than l aludea extended diseugsion by D. C. Bwk, Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For F ease 2003/12/04: CIA-RDP80-00926A' 3100040001-4 United States 1948 C "M {nW STEM AM CO TM IN M.tAION TO P S fR.C'S&D 0,C)l' Caren. Gustave gne], Jra, of the Arian toaorete Institute, v. 19, Proc, v. 44. Feb. p. 485-x. #nthoda and aaults oil creep tests performed on three different samples of steel id.re iu der? constant load and constant length o nditi ns. Pm paration of conomte specimens prestressed by use of h eee same 'wiz s. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Release 2003/12/04: CIA-RDP80-00926AY03100040001-4 OF SILL CAST LOW AUOt STEM AT KEM TI&MFtAT , -V._ . so and $. Lcsr, Trans. of the her. Soo. of h. Viers, Y. 70# Nov. p. 879-883., to of furnace practice on a cast C-416-V ste 1, and of Al. Cr, V. 0u, . a is of Me-Quaid-Mm Tensile, and high on oa3t eambinations. B : I L-2 one aging cycles. Effect of aging at elevated temperature on static bend bars and V-notch C} py bars. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For R (ease 2003/12/04: CIA-RDP80-00926A'C103100040001-4 United States 1948 T?XLE C:EP AND FATIGUE PROP US AT =VATS. TEER&TMit 3r= ALLOTS' Dona u? UC nald, aver boco for Testing Materials. Advanee Rep, P' t ro, of ie A er Soco for Testing ..terials, v.." , 18 ppd. Tests on cistinge and forgings to be used in e: Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For FWease 2003/12/04: CIA-RDP80-00926AT03100040001-4 1948 DETERMINATION OF STRESSES IN CAS TURBINE DISK SUBJECTED TO PLASTIC nCw AND C?MEP M. llenson a rd S. Manson; NACA Tech. Note. No. 1636 ~, June. 45pp. of a finite difference met od in the computation of disk stresses ions of creep and plastic flow is illustrated. Numerical integration s avvoided. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Rebase 2003/12/04: CIA-RDP80-00926A 03100040001-4 United States 1948 IN ' =RDI T& ALLOY STEELS AT ELEVATED TEMN-k'AT S, R, . i.lier,, Peta`ole Nngineer, v. 19, Jan. p. 178-18O, 152,E 184-186, 188-189. gnira nts for -various a Ppltcatione, and data concerning the weh niea1 properties and e levatad temperature corrosion resistance of Awqwwxt=wxMwVMx ton s ee3.s most commonly used in the petroleur- i iusti7. 19 ref. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Lease 2003/12/04: CIA-RDP80-00926A' 3100040001-4 United States 1948 E1 ICE OF 8I1 LL PERCENTAGE OF SILVER ON THE TENSILE ST OTR OF EXTRUDED LM STfE T ,, H. S. Phelps, Frank Kahn and W. P. lfageej Proc. ASTM, V. 48. pp. 815-.94o. -as rupture testa were condtcated on a series of extruded cable sheathing Ld pipe samples contaardmg up to 0.018% silver. Opti results were estimated to occur with 0.010% silver additions. The We was markedly increased, and he creep rate greatly reduced at stresses of 500 psi. and above. Higher silver tents produced undesirable results on the life of the samples and on the reep rate. Soweverp beat results were obtained with 0.017% silver additions when 0.061% copper was also present. Cast and rolled lead samples, when annelaed, appear to possess the same stream-"rupture properties as extruded lead specimens. The effect of temperature on the creep rate and time to failure was cheer ved. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Rftase 2003/12/04: CIA-RDP80-00926AN3100040001-4 Uted States 1948 A TALL' ICA' INUSrIGLTION OF A CONTOUR FL EA DXBC (W EM ALLOT, E. E. Re o1de, J. W. freeman and A. E+ ?te, National Advisozy Committee for Aeronautics, Tee hl Note No. 1534,. Nov. 30 pps. Properties of E ME, alloy (Fe baae,, 19 Or, 12 Ni, 3 1,, 1 Cb) in the fora of contour-forged discs for the rotors of gas turb ra were studied at room and 12OO?r. Results are compared with data from other lsboratoriea. Approved For Release 2003/12/04: CIA-RDP80-00926A003100040001-4 Approved For Release 2003/12/04: CIA-RDP80-00926AU100040001-4 states 1948 T .TION M` TWO TURS6U ERCHAR SR DISCS OF 19-a1tt A te, re e . and A. Z.. WHOt... W #i ... 'f on C of tests to determine properties *t ra+ t t es~era ure at IWAV+ materia3, in fcarging of the u4e& us d i es n sexgice. Both =808 Vero given hot cold working treatments at 3 to 3350? !' but one was solution-treated and the other was left in the ae-forged. oond ttion. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Ref se 2003/12/04: CIA-RDP80-00926AMM100040001-4 1948 1i[S. B ,TING MAMIALSr Ernast L. Rnbinw,, .. meri s i sir, a-- az oc Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Rase 2003/12/04: CIA-RDP80-00926A1+)l13100040001-4 Milted States 1948 PLASTIC O IM CAI ;T IRON AT ROOM AND ELEVATED TSIAPERA2t Ss WITH SPECIAL R RFC To RELY` OF STRESS, C. R. Tottlej Foundry Trade Jour. V. 95, Nov. pp. 445-463. The effect of strain rate and of intermittent aging and stressing on than ductility of cast iron bars at room a at elevated temperatures. Aging under stress is equivalent to stress relief, and it enables eLastio stresses to become plastic, Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For RgTease 2003/12/04: CIA-RDP80-00926A3100040001-4 d States 194 N CAST SANS MUST HIGH TWMATURES, W. 76, Nov. p. 6"9s 230. A. R. 8Laea, etigstion rode undertaken to verify the claims made for elevated- temperature applications of high-Si oast irons, to develop a t eahnigge for their oiaei production and to improve their characteristics for specific purposes. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For R" ease 2003/12/04: CIA-RDP80-00926AM100040001-4 United Status or ST'EE7 AT BLEV D TE 'ERA'1 S, A. B. Itl4er and J. 0. Light, 24 - T, - - -F- aea . wwv. A W4V --MU%4a, Pr.pr1t, PFs; Amer., dos. for Metals, Y* 410 1949, p. I4-163* The stability of over 3.00 different types of Steel at 900 1050 ?P , ,E , is being evaluated over a period of 31 years. Welded esampba are included. a1 obangee oxidation aharaoteristioa, and impact proportion after fear 1v,,000 hrs. Who influence of Zr Cb and ' i ' on graphitizat im in wft trout Cr. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Reese 2003/12/04: CIA-RDP80-00926AM3100040001-4 United States 1948 ynes Stellite Co. Hynes Al:Loya for High Temperature Ssrvi.oe, Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For~Fielease 2003/12/04: CIA-RDP80-00926 03100040001-4 XT WITH WIM (MUG I ,eatriaa3. gig. V 67, No. U, g. 1049. The as** of resistance attain gages for the me aurment of a xssa1,ts in better data being obtained.. Approved For Release 2003/12/04-: CIA-RDP80-00926A003100040001-4 Approved For ROTeale 2003/12/04: CIA-RDP80-009261 b3100040001-4 (-- COIAN T TWIM MW 100,000 ', Aviation W'eokp T. 49, Oct. p. steel- pits up to y' 175 ?F. to study effeota on Medea of high speed and temperturea Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved Fo?wKelease 2003/12/04: CIA-RDP80-0092003100040001-4 tte 1948 NP T M& IN, Joeeph Marine, J t mat I dustrits-a, v. 98, May 15, mast sire to eta have been made on epeei s subjected to simple resses. cent27, several static tension; static-to *ion; static -tension; and fluctuaid # to r; ion't nsionp creep-testing dke icpsd at'The Penn. State lege. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For ( lease 2003/12/04: CIA-RDP80-009261 03100040001-4 United States 190 and Jame ' A, ;3 - AO} FOR US NG S.BE METAL AT HIGH 2WFMTURE# G3e n Qaurn. tal Progress,. V. 54, No. 5, Nccv. pp. 692.1694.o cription of an extenso eter and instrumental set up i.ch utilises In ,gages, so mounted as to cancel out nuaerous variables and record quated value at any instant. The use of such apparatus in the tension, creep, and stress-ruptuxe testing of high alloy material in sheet form at high t eratures is described. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Lease 2003/12/04: CIA-RDP80-0092603100040001-4 ted States 1948 METHODS OF Tg8TZ CREEP RESISTANT ALL`S,, Wilfred Fratsois Coxon, Materials tend Methods, v. 28, :, p. 76-78. Recent developments in tre:: ting and testing areep resistant alloys. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 P86-O 6A,Q,p3100040001-4 25X1A LIM APPENDIX I (C:ont' d ) Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For FWease 2003/12/04: CIA-RDP80-00926A`&O3100040001-4 3948 THE CREEP CF of So lids", The . da C. Andrade, !Report of a ConfererAe on Strength booietT, P. 2D-26. Li a of creep. Apparatus for determination of creep at Dgeneous char. 4bree methods for maintaining constant strove an specimens under axial tension during testing. 15 ref,, Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Release 2003/12/04: CIA-RDP80-00926AO3100040001-4 1948 CTS:' OF NEWS, I MU-1 Progress 54: 552, Oct. E. Ox owan; Abstract of "The Creep of Metals" by Oro an. Journal of the Vest of Scotland, In and Steel Institute, V. 54, 1946-47. p. 45. Approved For Release 2003/12/04: CIA-RDP80-00926A003100040001-4 Approved For Release 2003/12/04: CIA-RDP80-00926A`6O3100040001-4 1948 D 'OR1LATION OP CRYSTALS BY THE MOTION OF SINGLE IONS, y. R. N. Nabarro, Physical Society* Pep. onf. Strength of Solids, PP. 75-90. On the basis that homogeneous stresses exert no force on vacant lattice sites or on in erstitial ions, previous estimates of deformation rates based on the migration of lattice defects under stress are rejected. Surface forces modify the concentration of defects assumed under conditions of thermodynamic equilibrium, and the diffusion of surface imperfections through the lattice as a oars equence of the resulting concentration gradient influences the creep rate in such a way as to make it dependent on the specimen size. Because thermal agitation p?events the presence of a limiting total strain independent of the stress, micro-creep in tin cannot be explained on the basis of mosaic-structure theory, though several other phenomena are explainable on that basis. The carder of magnitude of non-uniform stresses isoaloulated, and the creep mechanism resulting from such stress conditions is discussed. The effect of neutron bombard' meat on creep is described? in relation, to the mot ion and ejection of inter- stitial ions, and of the consequent creation of vacant lattice sites. Approved For Release 2003/12/04: CIA-RDP80-00926A003100040001-4 Approved For RMase 2003/12/04: CIA-RDP80-00926A3100040001-4 1942 poA of a; nf'ernee an Strength of Ioli es#, The ~P1 sioaleSociety,, P.*1-19. 'h a theory of dislocations, and application to the theory of transient P, in the sense in which the term in used by rode (1911, 1914. 1932) by Orman (1947), ref. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved ForQglease 2003/12/04: CIA-RDP80-009267 03100040001-4 1945 R. jg, R. X. Cabn and B. C haimsrs; Nature London 161m P. Wit. Creep by rain boundary movement in the bierystals. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Release 2003/12/04: CIA-RDP80-00926A99`3100040001-4 England 1948 tn.~nv.,~ pb awe. u?~t'tn uV,tr;~ PRSSUPY, AND C Fes' P TESTS AT CONSTANT MOPP STRESS ON LEII AND A ILpf E' PIPES A. Latin; Jour. Inst. of Metals, V. 74, No. 5, Jana pp. 259-289. Lead pipe was tested at constant hoop stress by adjusting the internal pressure, in order to determine the Andrade weep constants beta and k. In the case of alloy "Ex y the extension to fracture was very sm ll at low Io?trs~aest creep rates when oomprzred to that at high creep rates.. in the case of pure creep rates when compared to that at high creep rates; in the cast of pure lead? the extension to fracture was not affected greatly by the creep rate. As the applied stress diminishes., the It (slow flow) constant decreases greatly in both materials.: while the beta (rapid flaw) constant does not change greatly; the flow therefore becomes increasingly beta (rapid) flow as the applied stress is reduced, and increasingly It (slow) flow as the applied stress is increased. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Rase 2003/12/04: CIA-RDP80-00926A(RT3100040001-4 194 \ ..;, w . aT lenned 'e, TNB AJRi CREEP EQUATION TO RIPER; NTAL RESULTS i Phi. Soc., V. 61 lea. I,, p? 510-515* iod b * .eb the constants in the above formula for the flow of metals stress can be rapidly deduced from a xperi nta1 results by direct $atem employing sliding dates of calculated shape. The n to which the method is applicable is derived. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For4iLelease 2003/12/04: CIA-RDP80-00929M03100040001-4 England 194 '4 A. H. Cottrell, Report of Conference on Strength of Solids, p. 30 Phys. Soc. London. Explanation of mic rocreep on the basis of atmio clouds about the dislocation. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For R base 2003/12/04: CIA-RDP80-00926A 63100040001-4 Ingland 1948 TALS AND RECRTSTALLIIATION, B. N. Da Andrade, Nature, V. 162, Sept. Fare polycrystalline lead (99199%) which is stable at atmospheric temperature recrystallizes under stress. The crystals increasing in size from about .05 up to ahout.3 mm. linear dimensions. A figure -which shows length against time for a range of stress (371-985 01 ut/r in given. The form of those curves differs markedly from that obtained with normal metals. For the recrystEllizing lead there is a stage of accelerated creep during the first 10 minutes which is followed by a final creep at an approximately constant rate. It is clear that recrystallization during creep has a fundamental effect on the form of creep curves. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Rpiease 2003/12/04: CIA-RDP80-00926Ac663100040001-4 1948 Bardgett, W. E.1 J. Iron and Steel. Inst. 160, p. 143. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Release 2003/12/04: CIA-RDP80-00926A@03100040001-4 ad 1948 TRESSES IN 'WINE ROTORS* M. C. Caplan, L. B. Jolley, and J. . of Metals s Symposium on Internal Stresses in Metals and Alto Internal stresses were not found to cause arse permanent set in turbine heels. Rweveer, depending on the temperature, shafts may take a permanent set; this depends upon the extent to which internal stresses have been relived as a resit of they high temperature present in turbines. Calculations for the deflection of shafts are included. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Rakease 2003/12/04: CIA-RDP80-00926A`903100040001-4 194 THE CRFAP OF GIASS AT ii 4$ T P 1 ATt S, Ch. Crusaard; Sheet Metal, Indus . V. 25, Dec. pp. 2471-2474? The similarity between the creep curves of glass and of metals is emphasized. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Release 2003/12/04: CIA-RDP80-00926AV63100040001-4 - :TIES OF MOLY3]'NUM, CXP.OXItU WOMB ng Jour.. Iron a+ Steel Inst., V. 13$, A MOLT NW VANADIUE 37-800 at various t o i .turea and stresses were cons ted on 0.5% 0.5% x.25% Vs steels, and the effect of C. Si, Am, au,d Peat- treat n ants of various types were sue. enely 3',. The strees--te ersture relations for 0.1$ and 0*2% eta of up to 58,000 'two,, duration were carried out; the mode 000 bra* were esttmeted for -tc--Ta steel as a result of weep testae. This steel was found to have creep and ruprs he other cloys tested. 1948 Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Re' se 2003/12/04: CIA-RDP80-00926A0' '100040001-4 England 3948 C PJ3CN S Nd, - r AR NO L CAP ?Efi tTLTING P M ALI MIMU +1 ADDMI O J. Lyon and Ste ., v. 21. May p. 218-221. ,five-day creep tests were conducted on ov-carbon steels containing 0./+ to Is, d% 'Ma, 0.41 to 0.15% Si and up to O.1]$ Mo, and with varying amounts of .Al up to 3 1b. 1+p r tor_. *i, 8i, and M o reduce the creep rate and help to co ountez- act the abnox1 oraep resulting from Al additions. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Rase 2003/12/04: CIA-RDP80-00926A993100040001-4 wee 1948 Long time creep tests on 99.991% pure lead were carried out, and the results were compared to the values predicted on the basis of short time creep. The temperature effect and the influence of a superposed vibratory stress were investigated at various stress levels. The stabilisation of the crystal structure as a result of a 120?O, 24 hour anneal was found to affect the creep rate con-- sidera'11y. Testewe"re carried out at stresses of 50 psi to 300 psi for one to nine years, with a resulting maximum creep rate of 2.3% per annum. A marked increase in the creep rate was noted at a stress referred to as the creep yield stress; the offset of the temperature on this *critical" stress was observed. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Release 2003/12/04: CIA-RDP80-00926A 03100040001-4 Oriffi; 1948 Pron. Roy* Aero. Soc. 52, p, 1 Creep curves for an Ni"Cr a Loyd ; o -4 WA a ": e c ' I c.,'"\ Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For R ;ease 2003/12/04: CIA-RDP80-00926P 3100040001-4 AUSTMUC L , 0. T. ftrrU and W. & balls" :'? 26, Avg* pps 189-199, iU p"yerti. of else sto#1 tubs used in teat in relation to aetat cessixtg, Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Retftse 2003/12/04: CIA-RDP80-00926AGUa100040001-4 194 kLi iT RESISTING ST1FLS, L. F. JCee ey, Machinery Lloyd (Ove meas F-ditio ), v. 20, At)r'i l Zo. p., An.., n Con-Tiositiom acaling and creep; app1ioation . Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Release 2003/12/04: CIA-RDP80-00926AQ03100040001-4 1948 A COMPARISON OF SOW CARBON MLYEBSNUM S ON, THE BAS7B OF VARIOUS CREEP LTMI ,, A. E. Johnson and E. H. TapseI1, Proc. It. Mech. Eng., V. 159, No. 40, pp. 165-172,o Creep data on six carbon-molybdenum ateels are analyzed. Approved For Release 2003/12/04: CIA-RDP80-00926A003100040001-4 Approved For ReWase 2003/12/04: CIA-RDP80-00926AON100040001-4, 1948 of the Inst. of Metals, v. 74, Jan, p. 259289. TESTS AT CO ANT MOP STRESS ON IUD AND "E a PIPE, A method of testes lead and lead-alloy pipes at oca tant hoop stress, 91tating pressure adjustments. Prom the results, the rad - creep considered to represent two different types of creep flow were de- Sorg consideration is given to the nature of creep flow? and a is developed to account for the results. Applications to some .proble a cted with the use of lead sheath for high oitage pressure tables. 32. ref. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Release 2003/12/04: CIA-RDP80-00926AN3100040001-4 x1ish 1948 HIGH T'PERATURE TENSILE PROPERTIES OF CAST Al 8i ALLOYS AND THEIR COb113TIDJTI0NAL SIONIFTOANCE, W. I. Pumphrey and P. H. Jennings; Jour. ]fit. of Metals= V. 75, No. 4.. Leo.. Pp 203-233. ength temperature curves were obtained for ten alloys containing O-1 the equiaohesive temperature was determined for each alloy. Approved For Release 2003/12/04: CIA-RDP80-00926A003100040001-4 Approved For Release 2003/12/04: CIA-RDP80-00926AQp3100040001-4 1948 A TROP! (F TRAWSINT Cam' IN MTALS, C. L. Smith; 'roc. Physical Society, T. 61, No* 3, pp. 201-206# on the motion of trapped dislocations rele ed by thermal fluctuations, a theor, of transient creep is formulated. As creep progresses, higher activation energies are required for the release of farther dislocations, all the low energy dislocations having been gradual .y released. The creep strain a is found to be proportional to the ratio of the absolute temperature T and the time t less that ration times exp(-ct) where c is a constant; that is,, a-kT [1-exp(-ct)J/t. Results obtained with zinc single crystals, copper, and lead are in agreement with those predicted by the theory. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For R0ease 2003/12/04: CIA-RDP80-00926AQ93100040001-4 1948 CREEP a Wioug u-ti~ S ItJBJBCTED TO COMPI SSION STS, A. B. Sully. 0. M. Cole. tt. -ure, V. lb 1, Sept. pp. 441t-412. Creep tests in compression is conducted at a constant load on some typical oreep*resistant nickel-chromium alloys. The results compared with which obtained in tensile creep tests are reported as followis 1. The creep-rate in the secondary stage is approximately the same in both tests. 2. Tertiary creep occurs in compression as well as in tension and its onset in compressive tests occurs at approximately the same time as in timr and tensile taste. The main difference between these two in the tertiary stage is that in test, creep proceeds at an accelerating rate until fracture, but in compressive tests creep proceeds in a series of accelerating and decelerating rates. The reason for this is explained by the author as that in compressive creep the fissures in boundaries making large angles to the direction of the applied stress cannot form as readily as in the case of tensile creep, so that creep may proceed by a series of hardening processes, due perhaps to the blocking of dis- locations and to recovery processes akin to the onset of recrys*Rlization. These These hardening .,nd recovery processes may be localized in material adjacent to the grain boundaries due to the stress concentrations in their regions brought about by flow in the boundaries, Approved For Release 2003/12/04: CIA-RDP80-00926A003100040001-4 Approved For R&Jease 2003/12/04: CIA-RDP80-00926AO03100040001-4 sla r 1948 Tapse and Ridley, R. W.; Proc. Inst. of Mach. Wis. London, 153, P. 181. Long term creep data for C-o steels. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For RWease 2003/12/04: CIA-RDP80-00926A4613100040001-4 1948 THE SIUONIC SERXF OF ALLM - THEIR APPLICATION TO GAS TURBINE RESIGN,, Kond Nickel Co., Ltd. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Release 2003/12/04: CIA-RDP80-00926A09?100040001-4 1940 N UN?, AND X--RAY S CTRO ;TFR. H. J. psall V Po3 1 x # . . of Scientifio Instruments and of PbyVios in Irkiustrys ad in the study of the meclmnic a :proper i es of met # o a n realtion to X-ray atruct ?r particularly their creep behavior at elevated t peMtu3res. Set. feats peiuit X-ray examination at various times during stretching, Ind while the speoi n In oeraiI1 tit + out its aria and the Xara' oeoi~ti in its plans, Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Release 2003/12/04: CIA-RDP80-00926A &3100040001-4 1948 A. CONSTANT-STRESS APPARATUS FCR THE SUTZ Cif THE CREEP PRAPRRTI OF PLASTICS A. O. Ward and R. R. Marriott, Jct. Scientific Irmstruments, V. 25, No. 5, pp. 147-151 w A constant stress is mintained with the help of a caiaj the load decreases with the reduction in cross-sectional area. The constant stress extrusion apparatus can be used for elongations of up to 54%. Approved For Release 2003/12/04: CIA-RDP80-00926A003100040001-4 Approved For Release 2003/12/04: CIA-RDP80-00926A 3100040001-4 194 A. H. Sul3 rs G. N. COLD and G. Willoughby; tture, London 162, p. 111. sign of a creep testing machine for compression, Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved, For Rase 2003/12/04: CIA-RDP80-00926AQ 3100040001-4 England 1948 DEVICE FOR INT. .INING CONSTANT STRESS IN A ROD UNI RGOINC PLASTIC EXTENSION, E, N Da Cos 'roc* of Phpa. Soc. V. 60, ,rob, Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Fease 2003/12/04: CIA-RDP80-009263100040001-4 1948 \.*, t, u -4 at. R LA COITMU N DU RLUArF ET DE LA. PM AZATT3N (C arison of Creq, and fl iasation), Pierre Laurent, and M, .che). EuA rj, nptea Paned, v. 227, Ji y 26 P. 259-2$1. Mal method, applied at room tempera for the creep o , an Al alloy oontaining 9.7% Ga. Comparison of results with theoretical ones on the 8v3zmann prioip1 x hawed satisfactory a Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Release 2003/12/04: CIA-RDP80-00926AQP3100040001-4 F MA -j C- C- 1948 :REEF AND REI RATIONS Pierre Laurent and Michel Eudier; Revue deg Metallurgia, . kg_ Mn- IA- 948 a!a_r~es pp The mathematical relationship between creep and relaxation, Of the three variable , load, ti r". and deformation,, the first is kept constant and the relation between the other two is obtained in creep tests 1 in relaxation experiments,, the last variable is kept constart and the relation between the other t is observed. Experiments w-it# a 9% Cu-aluminum alloy yield curves which correspond to those obtained theoretically only at low temperatures. The discrepancy between the high temperature experimental and theoretical valme is presumably due to Inadequate evaluation of the temperature effect in the theory. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Release 2003/12/04: CIA-RDP80-00926AQ03100040001-4 1948 Comptes Rendus. V. 227, July 26, Pp. 25961, Uichel Eudier, A new experimental method,, applied at room temperature, for the creep of ones based on the Bolzmann principle thawed satisfactory arei ay agreement. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Lease 2003/12/04: CIA-RDP80-00926 03100040001-4 1948' 1\t ic' 0(ry TIC CREEP OF C AT HIGH TEWE T 8, C. Cruse 25,E e. p? 2471-247,41 2484, Ihdusiris.' sop owe for mss are oc pared Vd.th there for metals, Crew recovery irreversible, inee the aaae fora of Brave is found f t t r me als, call, and 9145803,o the reason for creep cannot be ea i t e of a particular u Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For ease 2003/12/04: CIA-RDP80-00926AN3100040001-4 nce? 1948 ON TO THE 8 C OF LOW AST 8TT WITH TITAN ADDI?IO RUT RESISTANT STRUC URAL PAR.tS. G. Dalhart- L Po"taszllY!_ and A_ lohn Four t'pes of low-91167 Steele were inss tigated from the poi*st of view of their heat stability, *astability arxi m foal properties. Approved For Release 2003/12/04: CIA-RDP80-00926A003100040001-4 Approved For Release 2003/12/04: CIA-RDP80-00926A903100040001-4 Fr=oe 1948 COf 1'RIRUTION A L tETU )E SOU CC+ 1 . :1T A CHAThD DES AC'JRS AUTSTENITTQLE8 ET ITIQt1E5 L? :RIVANT DU TUBE 18-8. Cont~ribution to the Shy of the A 'E14o - i It Ri.;gh-?Teinperat er Behavior of Austenitic and stenitic-Ferritio Steele of the Modifted-18 8 )., J. Soo1mann~ Rave de Meta 1urgie, v. 45,, I1*y'dune, t of investigation indicate that austenitic-ferritic steels are superior as regards cni.1 strength and freedti fraen sudden failure at elevated temperatures (500 to ?C). Also rscom*nds use of Ti, Ta, or Cb as a31oy additions. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Release 2003/12/04: CIA-RDP80-00926AQ03100040001-4 194 ING AND ITS RESULTS AS APPLIM) TO TICS D ION OF GAS e de Meta lur rie, v. 45, Oot, 3948, p. 361-373. Different methods of creep testing, Results indicate that the most aaeum are obta :rmak by lord-time creep testing of Simple and notched speoi sne. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Release 2003/12/04: CIA-RDP80-00926AQP3100040001-4 France 1948 REEP AND RES 1.TION OF DRAIN STEEL WXRffi AT ROOM de Net .11urgie, V. 45, Oot. pp. 411--,4U. Robert de Stryokerf Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Release 2003/12/04: CIA-RDP80-00926AQ43100040001-4 4`. 1948 IC KEIT DES MA8TXZ1TA1Sl&ODUl.2 RIt VETALLE (Th. ,r noe of the 91aetieitr Modulus of re Metals) Werner f ' Z :iteohrift fur Mata1ikvxnde, Y. 39, Jan. p. 1-9. The above was determined for 32 very pure metals from -ISeC to the malting point, or up to about fO?C, by determining the characteristic vibration freque les of tray verses vibrating bare. 31 ref. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Release 2003/12/04: CIA-RDP80-00926AQ03100040001-4 C ror y 1948 OR TO THE QUESTION OF TM DR 'INITION OF THE CREEP' STRENGTH aF LIGHT .go Vossk lhler; Z. Ibtallkunde, W. 39j, No. 3, Pp. 79-87. With few exceptions,, the creep curves of light metals become parallel to the time ands after about 1000 days. Thus a true value for the creep strength can be obtained. The total elongation at fracture cannot be correlated id th the load, as it can increase ordecrease with inoreasing load. At extensions of about 0.0O45%/hr a point of inflection dependent on the temperature and on the material generally occurs. Recamaendatio s as to the duration of short time creep tests are =de for various creep rates for alb and magnesium alloys. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For ,.Release 2003/12/04: CIA-RDP80-00926,0003100040001-4 1~cti~v.. u.r+ wmw 19th' TO O MP STRMTH OF MAGNESIUM . -C S, Rugo Vos sl ler; Z. Metal kund,, V. 39, Nb 7, pp? 193--2O4. Clea lly at low to pe xaturea the creep strength of forging alloys is superior to that of cast alloys, while the reverse is t r at high temperatures. Urge grain-sizes are best at high temperature, and sal grain sizes at low texperakares. Alloys prone to reerystaUization passes lower creep properties than those which-are not susceptible to reorystaflisation at the test tempera- tures. A +orrelatior of the tensile and creep properties was attempted. Approved For Release 2003/12/04: CIA-RDP80-00926A003100040001-4 Approved For Release 2003/12/04: CIA-RDP80-00926AQQ3100040001-4 1948 rep ted by the Canadian Bareau of tines, a STRAIN GAG ,w Iron Age, v. 162, Dec 23, P. 59. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Release 2003/12/04: CIA-RDP80-00926A993100040001-4 194 Th T N 0p rE TING& H. V. Kineey, Canadian Metals 0-nd sta Uurgi l :I: ustries, v. U, Junes Pe ig--220 34. Canadian laboratory facilities iron measuring creep of metals at temperatures up to 14 . Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Tease 2003/12/04: CIA-RDP80-00926AQ03100040001-4 eonven'1 x nsometer as reported by the Canadian Bureau of lim eS. This method is said to be simple, accurate, and sensit4 ,, and woide the problem of attaching 1948 WITH I E C AI1J #I 3, 'ei1actrical I~Wineerlng. v. 67, Nov. p. 1049. se of SR-4 bonded res t e-'ware strain gages instead o inconvenient us chatic al devises to test sge#imens. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Release 2003/12/04: CIA-RDP80-00926AQ0100040001-4 1948 JR DIE DAM T FESTIQKEIT VON ZINK ?OIERUNW,. ( Crew Strength v: L R ) .c ; 0. . C. leesner, 8chweiaer A ohiv, v. 14, 1. 147.156 Jane It 9150% long-time creep tests are. investigated and reault+e are diecueeed. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Release 2003/12/04: CIA-RDP80-00926AQ 3100040001-4, 1948 UDR D I' UFRSTAND asT1t T VON I Q tt , (Creep Resistance of Zinc moo ) 0. H. 0. essner, Schweizer Archie fur angswandte 1issenschgft and Teohn , v. 14 Marcaho p. 86-941 April, p* 118-127. of zinc is very law, but may be it reased by proper treat - , ngth varies with composition but much more influenced b y f faab CSation, such as heat treatment and wo*ing. No definite .onship between creep strength and grain Size or structure found, nor min a U O~& d '1 -- L- -J - ._ ? ,. - _ _ _ an med to be inter al slip in the crystals. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Rshease 2003/12/04: CIA-RDP80-00926AQ03100040001-4 TRW OF DETE IwTxaw or Iy t 8X81&N E OF METALS TO F'RI TE ST 11 Russian) 0. V. ahfkres I a , S m IC y A"USMI Nauk SS,,, Otdelenie Teknichsak kh -h of +Yw Aaadem r f a i encee of the U05,10 Section of Tech. Saierdes) (. a r Method peX ?ts easy solution of the prab1me of *bectlute u of rseia- o air and tear at each moment of deformation. Typictal data for two " r resultae of other methods of testing. 10 ref. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For R lease 2003/12/04: CIA-RDP80-00926AN3100040001-4 EVALUATION (T 'HE TOUGfiNESS OP THE IttSCS OF STRAW MIAs (Tn iasj ) Y. F. Y&chenko, 1tloturbbstrnonie (Boiler and, Turbine Manufacture), .r. Ap t. 194a, p? 19-22 In ?vuIustii the touglmess of the disks of steam turbine, the method of double < .ouiation is applied fiirst, using t1 influence of the "strain" of the rim and eonneotions and strain in the. di skj the method of triplo c .cula. Lion introduces the rim coefficient. 19 ref. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For RI'f?ease 2003/12/04: CIA-RDP80-00926Ab3100040001-4 Russia 1948 WIG PRXNCIPLFB FoR DE LOPMT ' HUT RISISWT ALLE (In Runs ) K. A. Qsipov, Dok1aOdY Akademii Nauk SSSR (Reports o:? the Academy of $ca noes of the MR), yr 60, June 21, p. 1535-1538. obtained from curves of density of the electronic states and clharacteristie of each component give. eluos for sueh predictions. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For RWease 2003/12/04: CIA-RDP80-00926AIW3100040001-4 x.948 ",:, -- i.,4r-.E IES N XBLE T ( i &T SM ILX4r`Y OF BE Rf. 3EMt7T}S WTAT.T'.Ttl AT.t_ Wear VA 40-W )i IL OW S$r. Ve 09P `"0t? I* Pb 493-49 mentioned were iwrestigated for a aeries of ternary and q~ is malting potnto of the components, the in factors ixolved Co ltion of the intermediate phase? and its dependence Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Release 2003/12/04: CIA-RDP80-00926AM3100040001-4 Russia TH ROLE CF *D IAC.n T24i1 THE PROCESS OF CREEP, (In Russian), Z. A. Oding, lzvestiya Akademli Rauk SSSR, Qtdelenie Tekhnicherskjkh M auk (Bulletin of the .cadet' of Soler aes of the tTSSR, Section of Technical Rciences) Dec. p. 1795-1802. Analyzes all possible meehaniems for. strengthening and weakening of metals dieting creep on the basis fo the theory of dislocation. Application of title Theory in said to resolve certain controversies concerning the mechanism of creep process. Describep an additional mechanism of mtk veaking caused by Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Rase 2003/12/04: CIA-RDP80-00926A0M3100040001-4 1948 1v k- R AXATION AND CREP 0 mET OONSIDMNG NONUNI?ORU DIST ThUTICN OF STfSES.S, (In Russian) # I. A. Oding, Izveatiy a, Akademii uk 8&S, Otdelenie Tschnicheskikh Na k (Bulletin of the Academy of Sciences of the USSR, Section of Technical Scier es),. Oct. p. 1561?1575. Investigation assured that plastic defor tion prodeede by means of diffusion plasticity in the initial sections of the curves of creep and relaxation. On the basis of the diffusion equation, formu]a a are proposed for initial sections of relaxation and creep cruvee, corresponding well with experimental data. 10 ref. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Release 2003/12/04: CIA-RDP80-00926AQ03100040001-4 Russia 1948 4 k-'^? k' L f 7 A't ,"I5 C ` SOME CHAPACTFRISTICS OF THE STRENGTH OF METALS AT HIGH T MPERATURES, 1. A. flding; Zavod. Lab. (in Russian), V. 14.4 No. U, pp. 3365-1377. A mathematical analysis of the creep and relaxation of metals at high temperature. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Release 2003/12/04: CIA-RDP80-00926A@93100040001-4 :u c 3 , ale me Ts)he :CITY IN UWALLIC X- LO Section of Teehulml for the ear tion of the mahani e e .tteze, a sts r*g the predet t tier of the ez st1w phase# of tm he, Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Release 2003/12/04: CIA-RDP80-00926AWS100040001-4 1948 XN LUENCR OF ALLOYING ELEU CB THE T L ST4BXLiU or CH iau NICKEL E 3Nl (In Russian), A. X. oorzdiIca Doklady Akadezij Nauk 88SR (Reports of the Aaade r of Sciences of the USSR , ue'w ser. v. 63, Nov. 21, p. 265-267 see of W. No, Ti,, and Cb on the heat resistance of CI-Bi marked difference in atomic diameterwt of the above elements and and Ni is the main cause of the increase in creep strength of the its higher heat resistarnee. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Release 2003/12/04: CIA-RDP80-00926A*03100040001-4 2.948 ONGA `ION " P?3LycRTs *LL3' SILICON IRON (4.2% 81) IN THE TE RATt PAY39 r R= -'1,1 ?C + 800?C. (In Russian), G. N. Kojesniko!v, Z. S. Xakovleva, and X. V. '!akutovioh, Zhurnal T.khnicheskoi ?iz ki (Journal of Technical Pbisics) v. 18, Nov. p. 1449.1455? Diagrams of elongation of the above may be classified in two different pupas Slow temperature" end thigh temperature". Dependence of resistance to deformation, uniform eloxa ration, and sum of elongation and "quasi" uniform elongation on temperature. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Release 2003/12/04: CIA-RDP80-00926A3100040001-4 Russ 194 ON OF THE TEPERtA E COEFFICIENT OF THE MODULI OF STICITT OF AL IN B1ND1W p A. N, halinkovich and I. V. it n j Zavod. Lab. ), V. 14, No. 7, pp* 839-842. Determinati.or of the modulus of elastioit t of steel and elinvar sheets as as 0.4 mm in the to agerature range -50? to +10O?C. Approved For Release 2003/12/04: CIA-RDP80-00926A003100040001-4 Approved For Rase 2003/12/04: CIA-RDP80-00926ADW100040001-4 1948 7 o, 'u R ATIONSRTP B WFFN MELTING POINTS RESIS'. CB To HI{HH T KF&TURflS O" ALIOYSx (In Ruesian), K. A. Oeipav. Kodladp Akade ij uk SSSR (Repork r)f the oz. ,cie noee of the t R) Y. 61,0 July Attem s to + tabiieh ra tionehip for a series of binaryr al.lo Co.Ni and .Ni). The method of inveatigatio'n. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Re ase 2003/12/04: CIA-RDP80-00926A 6100040001-4 Russo '9 CRP ft3T TiU ?t FOR LIG}IT ,AL17F8 (In Russian) t. L. Portnai and A. V. Itudner. Zavodskaya Laboratoriya (T&ctcry Laboratory), 7. Aga , p. 935-9900 or long and short-time creep tests at to ratu1 ea from 350 to 400'C This machine is characterized by its eisrplicitya corapvctnass, and ease of production in indnstria2 shops. Details of construction and examples of tests performed., with corresponding diagrams. Approved For Release 2003/12/04: CIA-RDP80-00926A003100040001-4 Approved For Release 2003/12/04: CIA-RDP80-00926A66N100040001-4 1948 C O k P A R A V ; W T S ON CREEP tf'' A FMNG &EC IMEN IN BENDING AND CF A CYLINIJRICAL 'cxi IN mN81ow, (in ; ian . I. A. 4ding and S. Is. .t v, Zavodskaya Laborator: a (Factory Laboratory , v. 34, May p. $95.607. 7. of rim apsaimen for the crew test. Shape and done d. Test apparatus, including electrical circuit and a comparison obtained from such epeoimens with that from t2 usual type of speoi Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For R&ease 2003/12/04: CIA-RDP80-00926P993100040001-4 9948. BALL Sx C TEST MACHINE, (In Asian), U. L. Bernahtein, Z vodnkala boratoriya (Factory Laboratory)r . v. 14j Jmev P- 760-761. Now a aratus; 22" x 20" x 18*p and its characteristics. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Release 2003/12/04: CIA-RDP80-00926A.QD3100040001-4 1949 A.4~L 4,?Y7.~ 141) Rt7 'T' E PII PsRT:[ TE SF'E RATt# -RgS S IAA' MATERIAL f FATIOUB 8TRB88, B. J. iaaanj roo. ASYM,, V. 49, pp. 757--787. UAWISH The limitations of static testing and the importance of dynamic creep and rupture properties in designing for high-temperature service are discussed. Newly developed dynamic testing machines and measuring equipment for determining creep and. *upture properties are described. Bata on several temperature--resis-- taut materials are presented within mean-stress alternating stress Coordinates to show the influence of dynamic stress on creep and tiros to rupture. The relationships between testing tem erature and dynamic stress and their influence an MYt M .n A"A - L - _ are rese Cree and e ,- p '"A" "I resistance during . the _ --- ~o teats is discuss*- d in terms of possible metallurgical charges CaUSed by cyclic asisr? nm#e .K..,.a__a_a _L- ._ caused by the superposition of cyclic stress on tensile preload. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Rase 2003/12/04: CIA-RDP80-00926Abe3100040001-4 a 1949 D. I+Iibahn, American Society for Metals, HOold Working of Factars that may affect the shape of & strain-tjM e. Suggests tilt 8t a -tea. r .a'ionshipe based upon fundamental characterfstice of deformation shot' apply over a wide ranges of conditions. Lilaited to *reap during which recovery a tuber transformatjorns do not occur. 3D ref. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For IWease 2003/12/04: CIA-RDP80-00926f}p03100040001-4 United States 1949 Cam?-TT RELATIONS FOR POL!S NE USSR TE ION, BENDING, AND T{ ION, Joseph Karin and Der go Cuff; Proc. AST B. 49, pp. 12,58-3,180. The infl rwe of the magnitude of the stress and time upon the creep defor- mations was determined for each of the foregoing t pee of stress. Contorl tests and stress-strain or load-deformation relations were obtained for sinple tension, compression, simple bending, pure bending, and torsion. Creep values for bending and torsion derived from creep-tension data agreed with the measured values. Approved For Release 2003/12/04: CIA-RDP80-00926A003100040001-4 Approved For RM6ase 2003/12/04: CIA-RDP80-00926A993100040001-4 1949 ~ A=i8 Al HIGZ! iEMPATMi. 1C. A. Os .po'v- Metal Pro &A. ress V g . Bad on three papers in Dokiady Akademii Nauk SSSR. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For RWease 2003/12/04: CIA-RDP80-00926A8@3100040001-4 United States 1949 CREEP, S. P. Popov; Jour. Applied Physics., V. 20, No. 3 A method of calculating stresses and deflections for beams whose material creeps is presented in this paper. Complete tension c reap test data at constant temperature are used to define creep characteristics of the material. They by using Bernoulli's hypothesis of plane sections and the techniques developed earlier for interpretation f the relation creep tests, a method of beam analysis is shown. Stresses and defections may be calculated for any desired time interval, This includes the time prior to the occurrence of the steady state creep. The latter aspect appears to have been ignored by others Approved For Release 2003/12/04: CIA-RDP80-00926A003100040001-4 Approved For R&ease 2003/12/04: CIA-RDP80-00926AQQ3100040001-4 United States 1949 MECHANISM C STEAD!-STA-Z OM P IN METALS, B. 0. Rightmiree; Physical Review, Y. 75, No* lo, p.1627. e uehman relation for steady state creep namely that the stress varies lineaa,y with the logarithm of the strain rate, leads to the deduction that about 1000 atoms are present in a flow unit. But since the activation energy values lead to flow units of the order of 10 atoms,, it is necessary to postulate that the flow units are dislocations which move in segments rather than as a whole] one atom at a time jumps and the others follow one by one. On this basis, and with the use of absolute reaction rate theory, it is possible to compute the number of atoms in a dislocation, and the velocity and concentration of dislocations. Calculations were made for aluminum, silver, and platinum. In the case of aluminum, it appears that there that there are few fast moving die- locations; this may explain the presence of slip bands. Approved For Release 2003/12/04: CIA-RDP80-00926A003100040001-4 Approved For Rase 2003/12/04: CIA-RDP80-00926A'993100040001-4 1949 co tR t TXo1 (7 TE 9ION CREEP TESTS WITH RELAXATION TH$ , IrTir Roberte 16al. of Applied etm ae, v.16, Trans. of the Amer., c sty of Mechanical. Engineers, 11,, June , p. 208. ArAlyt al solutio>sss to the bolt relaxation problem, based upon empirical creep-datA equations, may be obtained by direct substitution rather than by differentiation and integration, as was done by. Soderberg, Popov, and Rousnsr. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Rease 2003/12/04: CIA-RDP80-00926A9&3100040001-4 es 19,49 APfLI floN OF RUCTION RATE PRINCIPLES TO SO M CAANICAL PRRTI OF MATERIAL Edward Saibal., Trans. of the NewTork Acade of Soienaa, Ser. 2,, V. 13, Feb, p. 135-147. How the above has been accomplished in several cases. Such posna as creep, viscosity,, and fatigue can only be fully explained by application of physical principles analogous to these of chemical reaction. Discussion of theory of t1e rate of propagation of fracture cracks in mistals. 18 ref. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For$elease 2003/12/04: CIA-RDP80-00926 003100040001-4 1949 P t01 RTIES OF POLZST!RENE, J. A. saner, J. Main and C. 0. 1 iao; our. Applied. Physics. T. 20, No. 6, , pp. 507--517. The anelastic behavior of polystyrene has been studied by means of creep tests under long-time load application andby means of damping capacity tests under rapidly varying repeated loading. Tensile creep data taken at various amplitudes reveal that the log of the creep rate (at 1000 hours) varies early with the log of the stress amplitude. A similar type of variation obtained when damping capacity or energy absorbed per cycle is plotted against trees amplitude. From these two sets of data, the creep rate is found to be proportional to the square of the damping capacity. It would thus appear possible, for polystyrene at least, to predict 1000-hour creep rates from ashort- measurements of absorbed energy under dynamic loading conditions. The data obtained from the creeping and damping tests,, together with additional data from short-time tension and compression tests, seem to be con- sistent with an internal structure in which, the linear polymer chains and groups of chains are in ordered or partially extended position, but in which, in the absence of stress, no preference is a hewn for any particular direction. Under the action of stress, particulari'.ly if the stress is maintained for a long period of time, a tendency exists for the ordered regions to orient in the direction of the applied stress. The so-walled scrazing" condition which has been observed to occur in the creep specimen is probably a manifestation of this orient ion.. X-ray evidence appears to support this point of view. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 1949 PUS; CREFP,, Howard Scott, Metal Progress, T. 55, Mean p. 343-344o us with conclusion in Feb. 1948 issue that there is no correlation between ones and tensile strength. Defends use of complex "practical" allo which although containing at least eight or nine metallic components, behave in a regi .ar predictable manner. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Release 2003/12/04: CIA-RDP80-00926A8@3100040001-4 1949 FOR TMBINE ALLO s N. 0. Sweeny, Metal progress, v. . 55, . of present nechaniaa1Otest methods for us* in high-temperature alloys and fields where further irwestigation would be likely to be profitable. _ k on fundamental metallurgy as well as on test methods is condidered Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Rtiease 2003/12/04: CIA-RDP80-00926AGO3100040001-4 194 T TINGx MATIR~90AT HIGH T 'ERATURE,t F. 40Q Angineerir. stress' e'traine atreaa-rup ,s cramp,, relaxation, az fatigu Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Fase 2003/12/04: CIA-RDP80-00926AQQ3100040001-4 Cited states 1949 EFPGT OF PR TRAINm TEKPFTURE3 ON TIC RECOVERY OF COID 1) I? ALUMINUM, T E. Tieta, R. A. Anderson, and J., E. Dorn, Jrtl of tal?j (?Tara.) v. 1, Don T sf th A . . o e sz~er. Inat . of Mining and leta11urgicai 1g1neeare, '_ 185 ? 9 9 . - , p. ? chanioal properties of cold worked metals depend not only on in- stantaneous values of strain, atrain rate and temperature, but on the entire past history of tempezstue and strain rate during prestraining. Observations app' ar to suggest that .direr temperatures of prestralning induce formation of smaller or otherwise more readily activated die1ocaties. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For RWease 2003/12/04: CIA-RDP80-00926Ap03100040001-4 1nited States 1949 NIS C P CREEP IN METALS G. R. Wks Jni.. of the Amer. Boo. of Naval Zngi ere, v. 61, Nov. p. o-907. Jn1o the Institute of Metals, v. 75, Apr. p. 693-746 he meahaniem by which a metal deforms at elevated temperatiree differs normal temperature, and hcmr the difference depends on the rate of Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For R (ease 2003/12/04: CIA-RDP80-00926 3100040001-4 1949 states 3*0 REPORT OF JOINT COMMITTEE ON EFFECT OF TEMPERATURE ON THE PROPERTIES OF METALS. American Society for Testing Materials# rota* v. 49 1949, p? 241-255a Includes brief appendices an follo s *Effect of Variables on the Creep Resistance of $te.is" (H. C. Crows); "Stability of Steels as Affected by Temperature* (J. J. Kanter) j and "High-Temperature and Low-Temperature Testing Equipment in the 'United States" (results of a questionnaire). Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Release 2003/12/04: CIA-RDP80-00926A'&63100040001-4 meted States 1949 ION OF H FAT RESISTANT STS I.. J. B. hnry i P'od"^4- ., --- - 2- g na , 'a tors influencing steals the high-tem erat+ i p aerv ae include strength, ductility`s and fatigue resistance at operating temperatures, as well as resistance to oxidation and corrosion caused by other media in contact wtih the, metal. (To be continued). ON OF BUT RESISTANT ST LS, 11. V. 200 Aug. p. 113-115. Effects of extended exposure on mechanical properties; embrittle cent, intergranu r precipitatlo; thermal stresses; and relative costs. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For RUPrease 2003/12/04: CIA-RDP80-00926A711A3100040001-4 ,e$ 1949 ,'i C-' -T:AL ALLOTS US TH?EXIAL SHOCK PYS-10T NCI NEEDED FOR TUR i"i BLADES, act -sn ineering, v. 20, Jt , B. 150-151 Investigation of an allay containing 80% TIC and 20% Co conducted at the MCA I~ r .s JAboratory to determ ne, resiFtarioe to thermal shock,, short-tierce tensile Ctren1;th at elevated ternperz tares, and performance characteristics under simulated s price test conditions. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For R!'fease 2003/12/04: CIA-RDP80-00926 W03100040001-4 United States 1949 8 , NOTR C P E C L AIRCPAF ELENTS j Munitions Board Aircraft Co mittee, AN;C-5a, May, 109 pga. Meohsn cal properties of alloy, Carbon, Stainless, Bearing,, heat, resistant ahd ecrrosior: resistant steels, as well as Al and Ug alloys. 52 ref. Approved For Release 2003/12/04: CIA-RDP80-00926A003100040001-4 Approved For eIease 2003/12/04: CIA-RDP80-0092603100040001-4 Sates 1949 COMPARISON OF HIGH TEMW?A' ALLOYS 2STED AS BLA.D 3 IN A TYPE B"+F 3t *LP t- E C1i R, W. C, Stewart and R. C. ..i.nghaueent Trans. AS Z,, V. 71, Aug. pp. 6613-620. The need for test information concerning the high temperature strength characteristics and stability of gas turbine alloys beyond that provided by stress-ruptures creep, and gas erosion tests is discussed. The practicability of testing a number of alloys in the form of blMdee in an air-craft, turbo- super-obarger operated as a gas turbine is pointed out. By this procedure,, bides of 12 different allays am simultaneously tested, since the rotor contaaiia 142 blades. Tests on both wrought and cast alloy blades were made at eight temperatures, ranging from 3.2 1500?F, and for as long as 1 bra. Measure-. its. of the extension of the blades are presented graphically. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For-Release 2003/12/04: CIA-RDP80-00926'RO03100040001-4 ited States 1949 T COMPARATIVE CREEP PROPERTIES OF SSWERAL TIPES OF CO 'FRCIAL GOPPF88, A. D. Schuope, E. F. Smith, and L. R. Jackson; dour. of Metals, V. 1, No. 7, joly pp. 409-416. (AIMS TP No. 2605E). The effect of cold work on the creep characte tics of tough-pitch and of C+'HC coppers, weal' unalloyed and silver bearing, has been determined for tempera- tures from 2000 to 572 F. The most important results are: 1. Cold work increases the creep strength of copper} however, the benefit from cold mark is lost at temperatures where reorystal lisation is rapid. These temperatures vary with the amount of cold work and the type of copper. 2. The addition of silver to either tough-pitch or OF$EG copper raises the temperature at which rapid recryatallization occurs; the effect is appro'l tely seine on both pas of copper. . While additions of silver effectively loner the creep rate of both ough- pi eh and OFRG copper as sold worked, the silver-bearing 4FFE copper has a marked lower creep rate than comparable tough-pitch copper. Approved For Release 2003/12/04: CIA-RDP80-00926A003100040001-4 `Approved For Release 2003/12/04: CIA-RDP80-0092&1O03100040001-4 ttesd States 1949 v ,rAw I 'WING PROM S FOUND TQ AFVECT CRP- TO-R1P T!$TS, G. and R. J. Italia, Steel, v. 126, Aug, 22, p? 99? Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Release 2003/12/04: CIA-RDP80-00926M03100040001-4 tee 1949 E?CT OF M A ACTt3RI PRACTICE ON C1 P AND CFMEP RUPTURE STR TR OF LOW CARBON STEEL, G. V. Smith and 9. J. Dclis; Proo. ASTN, F. 49, pp. 584601. Comparative sweep to rupture tests at 0$0?F on twelve heats of low-.carbon do by different melting and deoxidation practices show a rather wide arced stress for rupture in 10,000 hr* ranged from 12,000 to 2D,000 psi, . observed stress to produce a mint'um creep rate of 0.1% per hr. ranged 10 000 to 32,000 pi? Silicon deoxidised steels were stronger than alumimta oxidized steels. An specimen "necked in" and shared severely elongated grains at the fracture. Notch impact values and hardness determined on specimens subected to creep tests but before rupture indictted that no important de- terioration ac curred in ordinary nechmnical properties. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved FolO elease 2003/12/04: CIA-RDP80-0092!l14003100040001-4 'anted Staten 1949 Ems' SPIN TESTS OF BALDER JET ENGINE )i'MS, N. B. Saldin and P. 0. Duff, Jrj Trans. ASNE, V. 71, Aug. pp, 605.612. The creep-tupture and d utility characteristics of materials are of greatest izportarae to the designer of high-temperature rotating parts. `our-bladed discs were tested in a facility that was designed to spin the rotors in as near engine operating conditions as possible. The tests were made in accordance with a predeternined schedule of temperature gradient, temperature and speed. It wasfound that the characteristics type of failure appears to have a direct relationship to the magnitude of the ductility for a given material. Of the wj. strength and ductility, although the Timken 16-25-6 materia3 as r d~ p + cess e , was slightly stronger than the standrad 19.9--U. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved Fol"Release 2003/12/04: CIA-RDP80-0092SK003100040001-4 ite4 States 1949 ILA VAT D-T# I PEF 'U# COI PFES`spj S SS-zT'i j DATA pUR 2 N STET AND COM?AUSONS MITI? EXTJL'ED 75S-T6 ALWH AZT.+OYj, Wi.Uiam M. Rloi,ert aim ecrge J. iI merl; AGE Tech. Note. No. 1837, Mar. llpp. Results are presented of compressive stress-straw tests of 245-T3 alb sheet at -m+&$%41 ic d l e e evated temperatures up to 7C s. exposure times of one with extruded 755-76 aluminum allo are ncluded, ~ ~rsaral. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For eIease 2003/12/04: CIA-RDP80-00926. 003100040001-4 1949 THE EFFECT OF BT ?A TEMPERATURE HISTORY OR Tim FLCW AND FRACTURE CH&RACTERISTICS AN . 1ELD STEEL, E. J. Ripling and O. Saohss Jiui. of Metals, Y. 1, sego. 3 Feb.. p. 78-90. axperi; ttal work on * loan-carbon, 2.75% Si steel. Conclusions rd g the effect of straining a ferritic material at one teaperature on -., fracture and flow oharaeteriatlas at some other tamperatura. U ref. Approved For Release 2003/12/04: CIA-RDP80-00926A003100040001-4 Approved FeRelease 2003/12/04: CIA-RDP80-009 fA003100040001-4 United States 1949 HIGH TEUFWA' CHARACTERISTICS OF HEAT RE61BTMT ALW , Noes P utt Engimaring, v. 20,$ Sept. p. 163. Data sheet. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved Food elease 2003/12/04: CIA-RDP80-0092rm*003100040001-4 1949 G i-TWP ATVI ' DE'4RU7TON C RA.CTE ISTIC"n C r SEV 5FAL SHEET ALLO S , es Miller and Men Guarnieri, Trans. ASM. V. 41, pp. 167-193. Prom short times constant rate tensile tests at elevated temperatures true stress true strain characteristics have been determined for five different types of a-Uoy+s over a range of temperatures and strain rates. The alloys used i SAN 1020, regular Tneonel , Inconel X, annealed 8-816,, and cold rolled S-F3l6. , An attempt mss nude to use the data as a means of learning more about the mechanics of deformation at elevated temperatures through determination of the activation energies involved. The increase in such energy values with decrease in stress, as me found for all materials, was attributed to the effect of elastic distortion on the crystal lattice. A simplified mechanism of deformation is described using these characteristics, and the relationship of the flow process to metallic diffusion is pointed onto Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For.Release 2003/12/04: CIA-RDP80-009264.003100040001-4 United States 19f TS OF T W " Rte T AND UA TE! &L STR CTURE ON THE PUCT RE PROPERTIES DIW1-CAP. N STEEL. Julius MUclawitz. erioan Society for T.et1n uaterrisi g a Effects of variations in temperature f t,eeting, size of grain, and type of pearlite in the structures of a 3i-killed Si-A1-ciXled steel on ductility OVA th e rer~g were determined. Apparatus and t at results. Micrographs shoe t ,rup ures resulting from various thermal treatments. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved Fd-Release 2003/12/04: CIA-RDP80-009 & 003100040001-4 e 1949 THE CREEP AT 2 0 0 ? C SOJM A G M I U M I J CONTAI MG CIR:Iu, G. A. Mellor am R. W. Raney, Jni of the :fist. of tale, v. 75, Apr* g. 679-692, A number of . the alloys were tested as oast, as rolled, and an rolled aimed heat treated. Little advantage was gained by increasing the Ce content beyond 2 *-2%., Rolled Alloys are markedly inferior to cast alloys unless they are solution tread;. Slight age hardening took place in elloyi containing 0.5-6% Co. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved Forgelease 2003/12/04: CIA-RDP80-009269Ac003100040001-4 id States 1949 1 t} NCI O F 3 ' T ? l '1 E ON TME S TT -STRAT E TMGY R ' `I ONSTJ1:P FOR CCPPER AND NICXM OPP"ER ALLOY, D. J. Adam, drj" :Door. of Meta3.s, F. 1. No. 101 Oct. pp. 727'.74O (AT . TP No. 27039). Results derived from tension tests of noteehed o l.indr1cai specimens of monel and o Men-free Cu at strain rates a little slower than those ordinarily used in tension tests as,rid at tex peratures of -188 to +165?C. 23 references. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For`RIease 2003/12/04: CIA-RDP80-00926AA03100040001-4 teats 1949 T OF PV AT13G LOAAS ON THE CI P CHARACTERISTICS OF ALRMZ fUM ALl3Z 148-.4, Caine; ?roc. ASTM, V. 49, pp? 788.8039 This papas describes a creep-rupture testing machine in which oscillating and steady loads be applied. 'his mac 3ne was developed to check the in4 t uenoe of ad a small oscillating stress to the steady stress in a creep.. rupture teat. he results of a series. of tests at 404?F of 14 .T alumin alloy peoimens under an oscillating stress of 10% of the mean stress are reported. The effect of this oscillating stress depends on the magnitude of the mean Stress. A possible explanation of the tests results is discussed. Approved For Release 2003/12/04: CIA-RDP80-00926A003100040001-4 Approved For Rase 2003/12/04: CIA-RDP80-00926Ai1Q3100040001-4 Dnited States 1949 SiMULTa OUS AGI AND MOM" ITON IN MgTAL ,: J. D. L zbahn; Jour. of metals, V. 1, No. 10, Oct. pp. 7O2-708 (ATE TP No. 26973). Oonstard strain rate tensile tests, constant load creep tests, and variable strain rate tensile tests were carried out on an age hardenablee aluminum alloy to determine the effects of simultaneous aging and deformation. The fol o ing unusual deformation characteristic, were observed# 1. discontinuous yielding in a tensile test; 2. periodic sudden extensions in a constant load creep testj 3. failure ever to undergo gradual extension at a constant load; 4. unexpected transients following a sudden rate change l 5. an ihverse rate effect where an increase in flow stress beyond the transient is required to ssintain a smaller strain rate. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Release 2003/12/04: CIA-RDP80-00926AM3100040001-4 United States 1949 T} PROPERTIES +k` MO CAST MAtI*ESIUP R4RE 1 ARTII ALLO , Thoma3 9. Leontie; Jour. of Metals, V. 1, No, 12, Dec, pp. 968-`983, AI TP. No. 2726E, All the rare earth metals investigated enhance the strength, hardness, and ep resistance of- nagnesium at room and elevate temperatures. The various magnesium-rare earth metals may be rated in the following order of decreasing tensile properties at room and elevated temperatures and creep resistance at 40D and 500 F3 1. msgnesium-did m um. 2, magnesium cerium-free Mischmetal. 3. gnesivumr-praseody tnlanthamn. 4. ' magnesittm4tisclm tal. 5. magnesium- cerium, 6. magnesium-lanthanum. At 400?F the properties of magnesium didgmiu allays are 20% to higher than those of magnesium-Mischmetal. The relative effect of each rare earth metal on. the creep resieta a of magnesium at 60?`F depends upon the c osition level and, to a certain extent, upon the grain use. Approved For Release 2003/12/04: CIA-RDP80-00926A003100040001-4 Approved For ReA?ase 2003/12/04: CIA-RDP80-00926AGN100040001-4 'United States 1949 ANAL IS ! F' THE TE EP.ATURE COEFFICIENT OF 8MR, MODULUS OF ALU!UMM, Tying Sui Keg Physical Reviews V. 76, No. 4, Aug. p. 579. The rlicity and implicit contra but3-one to the temperature coefficient o f t shear modulus of an alums crystal were investigated. It was found that the explicityly temperature-dependent term contributed more than one-third of the total temperature coefficient. This indicates that the shear modulus cannot be regarded an a fanot1on of only the volume, even in an approximate way, Approved For Release 2003/12/04: CIA-RDP80-00926A003100040001-4 Approved For Reuse 2003/12/04: CIA-RDP80-00926AO 100040001-4 United States 1949 AND RELAXATION PR?PER1I S OF TALE , V. 21, N. 239, pp. 2?. , 13. . Johnson; Aircraft The high temperature behaviors of a low carbon steel and an aluminum alloy under complex stresses were investigated. The creep strain appeared to follow the Misea- n ky sbear-strain energy criterion of yielding. The creep rate vs. Saint Ver t-Misea equ Lion which assures theme material to be isotropic. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved Foriieiease 2003/12/04: CIA-RDP80-00926403100040001-4 1949 vvuu VXMR s .LNUUr .UtQNS Jenkins and Thomss a. Diggee dour. Rese~arah reau gtd T s ug. pp. 117-131. (RP 2o13). ? . 4.3, A study was made of the effects of variations in both strain rate and temperature on the Creep characteristics ib tension of cold-drawn ingot iron. The third stage of creep began without necking or without the presence of cracks of microscopic dimensions,, but considerable necking occurred in all specimens tested to fracture. The resistance to creep in the second stage and the resistance to fracture increased as the test temperature was decreased. The strove required to initiate fracture also increased as the strain rate increased. The general trend was for the ductility at fracture to increase with an increase in the strain rate. The plastic extension at fracture decreased with an increase in test temperature. The plastic extensic-n at the beginning of the third stage was less than about 1%, except in specimens tested at relatively high strain rates or at a low temperature. The fractures were predominantly trnasery attafine in the tension tests with the different strain rates used at and below 600 F, and intercryatalline at test temperatures of 700? and 800?F. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Rase 2003/12/04: CIA-RDP80-00926AGO3100040001-4 meted States 1949 TIU . , . ITS PROSPECTS. T. . ITS PROPERI , R. 1. Jaffee and t. Z. CampbsU,t Iron Age, yr 164,, `.y 2$ p. 46-51. Also considers a taUurgica7 concepts in alto a teria1 to high-temperature service. applying the Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For.Release 2003/12/04: CIA-RDP80-00926 4003100040004-4 tted States 1949 INITIAL I JESTIGATION OF CAP.BIDD TYPE C1 RPA `&L (7 80% TITANIU)LCARBIDZ PTA" 2 COBALT FOR USE ASS GAS TURBINE MADE MATERIAL, Charles A. H fin, G. Mervin Ault? ari Jams J. Dangler, National Advisory Cor 1ttee for Reponauties, Tech. Note. No. 1836, Mar. 49 pps. Performance in a quasi-service gas-turbine unit. Alloy blades were used In the sane unit for comparison. E-levated-temperature, short-time tensie, and thermal shook i.nvestigatioas were conducted on the cer l material. Results mere encouraging. 10 ref. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For lease 2003/12/04: CIA-RDP80-00926AD03100040001-4 Unit States 3.949 R MTXON OF P,$ATE COJeRESSIV STIMOTI AT ELEVATED , g J. Rsiaerl and William M. Roberts. Natiox*1 Advisory Cam. for Aeeronautioec, sal-instability tests of extruded 758-T6 Al-Alloy R-secticns at stabilized atm'ea up to 6W F. Somata show that methods available for l compressive stress at room temper-turee can be used at -d temparaturse it the applicable compressive stress-strain auras is given. Tom gor e Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Release 2003/12/04: CIA-RDP80-009261J03100040001-4 NIC UZ ALL07B FOR HIGH ThMP1 RATE' E APPLICATIOIe, A. C. V. 41t Pp. 1220i4O. %lcn is given on a new series of aast nialnel-abase hi h ' g vcuuvcu-w , materials oontaircE Al, Mo. and Cr as the inci a31 i I t c ng ? a an .s. bap test data at 1 16F show t}at a rvwber of the a111Q710 in the series have high rupture strengths than the beset of the cobalt-base sateriaia mm in use. Theme &UO73 also have eZce: nt oxidation and moderate fate strength. Alth h, 4--A-N- aam to ac b -be . es Ah, i m , these allele hm 1.ow elongation and isat - b b ~e pro a l, that they are suitbl f i aeor icy"ndustrial a pplicatiena, Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Release 2003/12/04: CIA-RDP80-00926A 03100040001-4 1949 REP CHARACTERISTICS OF COMPRESSION MOLDED POLYE? ,ENE, 0. R. Go ugs, and W. C. Ellis J ':roc. ASTM T. 49, 1949, pp. 1139.1157. J. D. Data are presented on the creep properties at various stress levels ranging from 50 to 1000 pal Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For lease 2003/12/04: CIA-RDP80-00926AP03100040001-4 United States 1949 PHYSICAL PROPERTIES AT ELEVATED TEMPERATURE OP SEVEN HC -PEED CMJdICS, James J. dangler, Chester F. Robarda, and. dames E. McNutt; NACA Tech. Note. No. 1911, Julys, 33 pp. Presents investigation to determine elevated temperature short time tensile strength, relative resistance to thermal shook, coefficient of thermal expansion and density of seven ceramics fabricated by hot-pressing, Ceramics are boron carbide, titanium carbide, zirconium carbide, 85% silicon carbide 1us 15% boron carbides magnesium oxide, zircon, and stabilized zirconia. itanium carbide was the most promising of the seven ceramics for possible gas-trubine application because of high tensile strength at elevated temperatures and its superior resistance to thermal shook. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For lease 2003/12/04: CIA-RDP80-00926403100040001-4 1949 OU TO EXTRAPOLATION OF 8R T STRRS RUPTURE DATA, Nicholas J. Grant and Albert Q. Buokiin, American Society for Metalas$ Preprint No. 18, 33 pps. .k Urge number of stress-rupture tests was made on allay 8-590 at 20 -r1900?F and on 8-816 at 1200-15000F. Rupture tin" varied from 3 sec. to 26,000 hrl The validity of straight lines in the log-log and semi-log plots of Mt *ASjg '6'#.... lHftn'E+4re, 4-#- -M _- ._ of s nmu __ ? . w+ m c esep~'iLte i vaasinedn . i . o the b,sia of these tests. Suggests method for predicting long-time performance or pertc a oe at other temperatures based on extrapolatjon of instability points clearly shown in log-log plots of rupture data. Data are analysed on the basis of the chemical rate procesetheor7. A value of 'True elongation" is determined from stress-rupture tests, which appears, to establish ductility changes as a function of increasing time or decreasing strgin rate at a given temperature. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Fiefease 2003/12/04: CIA-RDP80-009264QG3100040001-4 j-- ( c` United States 1949 'UNf kMI NTAL ~C;TS OF AGING ON ORE" PROPNRTIE& OF SOLUTION-TR T L0 CARB01f H-155 ALLOt,, D. N. Frey;, J. W. Freemaa, and A. X. Whiter NACA Tech. Nots, No. 1940, Aug. 73 pp. An experimental procedure is described which is believed sable for establishi the fundamental mechanisms by which processing, heat treatment,, and chemical composition control the properties of alloys at high temperature. The method relates microstructures and array diffraction characteristics after various prior treatments to creep and rupture test properties. Results are given for application of the method to solution-treated and aged low-carbon x455 alloy a correlation with short-time creep and rupture characteristics at l20O0 . Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Release 2003/12/04: CIA-RDP80=00926A`A03100040001-4 United States 1949 OF CONDITIONS CF HEAT TREAD AND HOT-COLD WORK ON THE PROPPRTIS r-CAR%ON N-1,55 ALLOY AT ROOM T 1'ER&TIM AND 1200% J. W. Freeman, E. 2. olds, i3. S. Fray, and A. E. Lite; hProc. ASTid V. 49s pp. 61"-/+5. From tension and rapture teats the following data were t btaineds yield strength range at 0.02% offset at room temperature, 30,000 to 134,000 psi; rupture strength range at 1200?F, 40,000 to 60,000 ped at 100 hre.; 35,000 to 56,000 psi at 1000 bra. to an estimated. 600#000 hre., depending on the treat amt of the speoi . These ranges, resulting fr z variations in thermal and mechanical treatment,. are greater than those which result from variations in camtrpo.ition. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Release 2003/12/04: CIA-RDP80-00926AW3100040001-4 'cited States 1949 A ST= OF EFFWTS OF T TWAT NT AND I COLD N ON PR !' S OF III' C .RBON N-155 ALLOT,, J. W. Freeman, E. 3. Reynolds, D. N. Prey, and A. E. Whites MICA Tech. Note, No. 1867, May l pp. i1 ,properties at room temperature a rupture test characteristics at 120(rF were used as a criterion to evaluate the effects of systematic ,aria* of solution treatments, aging treatments, and hot--cold work on the roperties rzgth for d.U o ?fset at room temperature, and rupture Properties at 12OO' F, standard type treataaents than are best for the alloy could be net up. Approved For Release 2003/12/04: CIA-RDP80-00926A003100040001-4 Approved For Release 2003/12/04: CIA-RDP80-009261 03100040001-4 tl' ited States X949 SOME NEW DATA ON THE PROPERTIES OF BOUGHT TITAN:, F. B V. 5 6., No. 3, Sept. pp. 348-350. Metal Progress, Tension and compression data obtained at various temperatures, and including yield strength., elongation, and modulus of elasticity values,, are supplied for (I) annated and (2) cold rolled titaniwa sleet and bar stock rolled (a) longitudinally and (b) trransvers . Hardness, impact, and, fatigue data are also furnished. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For ease 2003/12/04: CIA-RDP80-00926AV03100040001-4 19'9 W CA AND OFFICE OF NAVAL SW CH MVALLt ICAL INMTIOATICN Cr TWO LARGB FCR? D D3CB OF S-590 ALLOT, J. W. Free and Ord C. Cross, NAQ T'n h. Note, No. 1760, Feb. 63 pp. Pro t1es of large forged discs of 8.?594 alloy at room teas rature, 12000, 1350? and 150O1 ? ' were studied to determine the level of properties obtainable in forgings required for rotor dims of gas turbine. One disc was aged after forging] the other,. solution treated and aged. A limited amount of testin was done on the solution treated disc prior to age. Results are given for tensile, impact, rupture, time deformation, creep, and structural stability tests. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For aelease 2003/12/04: CIA-RDP80-00926'003100040001-4 1949 i '-.0Q t cb ra 1 ?~" i s CREEP .A '3 S` PBSS-RUPTURE INMTIO TIO 0 SO ALt II:M AlLOT SW ET I t LS J. E. Dorn and T. E. tietz; Prot. ASTMS, V. 49, pp. 815-833. Increased interest in the elevated temperature properties of aluminum alloys prompted investigations on the creep art 1stress-rupture characteristics of 3S-H12, 3S_ 18t 52S-.132, 526. 8, 6l8 T6 and; ITT (ASTM Designation 1111-M20 1,-m a,, Orl-1 8,, 0521--T6 and CO reppectively). From 90?f to 400?F the above sequence of alloys was found to,be the order of increasing resistance to creep and stress-rupture. Cold rolling appears to have a bene- fic3al effect on the creep resistance and the tae to rupture. The data for 36- and also 3S-K18 were a yzed in terms of Hollamon's theory of creep, but the theory did not correlate wolf with the experimental facts. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Release 2003/12/04: CIA-RDP80-00926A' U3100040001-4 'iced States 1949 4. ; Ea ATED-TE RAT E PROPERTIES or SEVERAL TITANIUM C&$BIDE SASE CERAMALS, George C. Deutsch,, Andrew J. Repke, and William G. Lidmanj NACA Tech. Note. No. 1915 s July, 47 pp. The elevated-temperature properties of titanium carbide base ceremais in ? iperatare range of 1600 to 2400F were investigated to obtain information an the bonding mechanisms. The compositions studied were titanium carbide plus 3.0, 20, and 30% by weight each of tungsten, molybdenum, and cobalt. The operties, investigated were density, tensile strength,, modulus-of-rupture strength, In a strength-to-weight ratio basis? ceremals appear promising as gas turbine blade materials in the temperature range of 1600 to 2400??. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For lease 2003/12/04: CIA-RDP80-00926A"O03100040001-4 1949 OFFICE OF NAVAL RESEARCH RID N& CA TAILVR.QICAL 11 STIGATION -OF A LARGE F?RUED S'IC OF I TCDNEL, X A ILOY,, Howard C. C 'oaa; NACA Tech. Note. No. 1770, April 31 pp. Properties of a large f ogee dive of Ii mal-X alloy were date . ed for the sol xtion-treated and aged conditions at room temperature, 12{0e?, 1350?, and 1 0o?F. I eluded are results of ten ile, Impact, ruptures time-deformation, creep and strietur. al stability testa Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For.?.elease 2003/12/04: CIA-RDP80-00926' b03100040001-4 a 1949 C3FT'ICE OF NAVAL f EARC T 1i D N&CA METALLURGICAL INVESTIGATION OF A LAP.GE FORGED DISC OF 3-816 ALU3', Hoard Cross and S. It. Free j NAGA Tech. Note, No. 1765, Fe. 45 pp. Properties of large discs of 6-816 a31oy have been determined for both the as-forged and aged condition and the heat-treated and aged condition by means of stress-rupture and creep teats for time period, up to about 2000 hours at rocma temperature, 00?, 13500 and 1500?F. Short.-time tensile test, Impact test, and time-deforn tion characteristics are included. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For-Release 2003/12/04: CIA-RDP80-009267003100040001-4 1949 A NEW L(W ALLOY STEEL FOR RIOR TEMP A.TURE USE, George P. Comstock; Metal Progress,r V. 56, No. 1,, Syr pp. 67-m7 lo When boron and titanium are added to a a oft steel? it quenches out to 8-55, and this hardness in even increased by long stay at i .000F. No trace of graph- itization was found after 10,000 hr. at that temperature. Stress-rupture tests indicate 1000 hr. life at 1000?F and 50,00} psi. Boron and titanium (or columbium additions are also ford to improve the stress-rupture properties of 5% ohraniinm steel and 18-8. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Release 2003/12/04: CIA-RDP80-009261 3100040001-4 1949 REEP IN T DESI(N OF INTERNAL PRESSURE VESSELS, L. P. Coffin, 13. Shepler 'hemiakj Jour. Applied leoh., V. 16, Sept. pp. 229-241. Xhicku waUed cylinders are tested under hydrostatic pressure at high teapera- tures. The permanent strains resulting from primary creep are compared to those due to secondary creeP. It is concluded that in the design of preeeure vessels for short ;fife, consideration of eta .tics conditions and primary creep is essential, while for. long life, secondary creep analysis is sufficient. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For PAtease 2003/12/04: CIA-RDP80-00926ATb3100040001-4 Iaiited states 1949 SOME O3SVA lO ON TI RECOVERT OF CO WORM AL NU , T. V. Cherian, P, Pietrokcwsky~., and J. E. ~ orn Jnl of Iet&j*. Trans. v. it Dec, ins. of the Amen * Inst. of Idning and tallurgieal Engineers., v. 185, p. 948-956. ate of recovery on various physical and mechanical properties an extensively studied. Hera effects an the true stress-strain curve investigate . Effects of different temperatures aid prestrains an ` were :nom. ype types of recovery designated as "beta" and 'ortho distinguished, indicating that the work hardened state is characterized by at least two essentially distinct types of imperfeatiot * Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Release 2003/12/04: CIA-RDP80-00926A 63100046001-4 id States 1949 1 UGH PERATURE P BOP',R 'I OF TITANIUM ALLOY CAS I S,, P. H. Brace and W. J. Ilirford, Metal Progress, ve 55, Mar. p. 362-363. of oreep-rupture and tensile tests on alloys containing 30-50 r mom of high lting rm terials. Alloys couiparin; favorably with corrventio temperature materials and considerably lighter were obtained. Beat yield kw were obtained with Ti--Cr base (20M- Cr) alloys containing Uo and J in 4-1 atcr,.ic ratio. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Release 2003/12/04: CIA-RDP80-00926A` 03100040001-4 United States 1949 OF CERAMICS AND CER ALS AS TURBI -BLP )E MATERTAIS FOR THE AIRCRAFT POWER PLANTS, A R. bobroweky; Trans. AS NE.. V. 71, Aug. pp. 621-?629. Ceramics and oeremal materials have been investigated for use as turbine- blade materials for aircraft gas turbines. Tensile, flexure, thermal-shock, and oxidation data for these materials at temperatures up to 2?F are presented. It was found that several ceramics and ceremals possess excellent tensile proper- ties at high temperatures, and that carbide base materials possess good thermal shook resistance and operate cooler than most high-temperature alloys or oxide- base materials. Although ceramics and oeremale have operated as blades in gas turbines at temperatures abcge those in service use with alloy blades, speeds lower and lives were shorter than those of alloy blades. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For iv lease 2003/12/04: CIA-RDP80-00926A4O3100040001-4 States 1949 TITANIUM AT ROOM T ;RATUE , 8einrich Adenstedt; l&tal 'rogreas F. 56, . pp. 658-660. Tensile and creep data are presented for annealed titanium sheet and cold rolled titanium strip at room temperature. The minimum creep rates of titanium are compared to those of other structural metals. It is seen that the annealed titanium sheet showed the highest tendency for creep. In cold rolled titanium strip, a load equal to 80% of the yield strength produces a creep rate of 0.000per 1 hit'., while loads of only 50 to 60% of the yield strength give the p rate in the annealed material. An unfavorable prope-ty of pure tit- realedj dangerous secondsrv creep is in evidence even with loadings ow the y1eeld strength. However, alloying and heat-treatment may p properties. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved Forelease 2003/12/04: CIA-RDP80-00926W003100040001-4 ted! States 1949 (poae iK ~ tr %-4 THE I ,U C$ O VIBRATION ON THE CREEP OF IAA, V. 49, pp. 834-856* Greenwood; Proc. ASTi4 Creep tests on two industrial (very pure) leads and two lead alloys,, one containing O.W.7% Ag and theoth ? 0,t% Cu have been made under conditions whereby a gentle 50 cycles per second vibration was superposed on direct tensile stress. The stresses were between 100 and 350 psi. It is shotln that vibration increases the rate of creep and also accelerates the recrystallisation under stress, Ong recrystallisation the creep rate increases considerably. Without vibration the industrial lead will recrystallize after an extension of 4 to 5% whereas,, wi, h the vibration superposed, this will occur after 2.5% extension. The grain aizd increases considerably during this process. It is shown that under certain conditions the creep rate of lead can be increased by the presence of silver. The effect of copper is affected by the degree of dispersion; the finer is the dispersion, the more the areep rate is lowered. Both alloying elements reduce the susceptibility of lead to recrystallize under stress, at least up to 15% extension. Annealing lead at 120?C for 24 hr. stabilized the crystal grains, reduces the creep rate udder given conditions, and reduces the susceptibility to recrystirll.ization under stress. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved Fori4elease 2003/12/04: CIA-RDP80-00926PA'03100040001= ,ted States 1949 STA S FOR ELEVATED TEPIPER&TU ES SERVICE, U. S. Steel Corp. Pittsburgh, (book), 87 pgs. Gent-ml prlnclplea of behavior. Teat nthods and laboratory techniques. Tabular and graphical data on mechanical properties of 21 steams covering a side vari* of chemical compositions. Testing facilities of U. S. Steel Corp. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved Fo&Release 2003/12/04: CIA-RDP80-0092 003100040001-4 Aes 1949 }ITIONNG CUTS OUT CAP TEST COMPE ATIO x, Steel, v 1251 Ally 4, P. 95 a and testing procedure an a Ir-O-onditi ;d at constant temperature at the research laboratory of do ?ube Co. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved Forytelease 2003/12/04: CIA-RDP80-009201(003100040001-4 ates 1949 A SIB CONSTlll -STRESS CREEP TEST, J. C. Fisher and R. P. Carreker; Jour, of Metals, V. 1, No. 2, Feb. p. 178 (AIMS Tech. Note No. 10S). The use of a "v" shaped specimen supported at its ends and loaded at the vertex of the angle is advocated for constant stress creep tests. The angle at the vertex of the a sr should be approximately 90?. This method for obtaining constant stress is especially suited to the testing of smell wiles, but may easily be extended to rods of any dimeter through the use of a suitable grip which serves as the vertex joining two identical rods forming the legs of the "V?; Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved Forgaelease 2003/12/04: CIA-RDP80-0092G 003100040001-4 1949 CR]AZ TEST3 AT HIGH TEYPERk''I S, H. S. otizr, Metal tl sfir7j. Y. 7S ? Do(;. 2, p. 1.71-474. *thodo ate. eq. nt.. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For4geelease 2003/12/04: CIA-RDP80-00928003100040001-4 Vubted $ta 1949 74.. AT Rlo$ TEI RATUR S, H. B. nree ,, Metal Industryj v. 75, Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved ForlWlease 2003/12/04: CIA-RDP80-00926AD03100040001-4 Ch'A_I dM CF CR ;EP IN WT. W o G. R. Wilms tend W. A. Wrod; Jour. Inst. of .. _ A,, pp ? 693-706. The difference between the high temperature deformation mechanism and that at m Om to mperature depends on the strain rate. At rods temperature the mechanism consists of h1 ip and of the breakdown of the grains to cr rstdiites (so called mosaic blocks); at higher temperatures and lower strain rates, this mechanism is overa tca ed by the 'dissociati?n of the grains into fairly coarse units, flow being due to the motion of these unite within each grain. These units are called cells so as to differentiate them from erystdllitev. The influence of strain rate and of temperature on the calls was determined; the motion of the cells takes place without reference to specific slip planes. The x-ray technique used is very sensitive# a 10? difference in the orientation of the cells * uld show up as 180? on the x-ray film; therefore the actual difference in orientation of the cep (which is less than 1?) is easily measurable. Most of the deforma- tion takes place near the cell boundaries, and since the cells are relatively large, little strain-hardening taken place? and we have quasi-viscous creep. When crystallite formation ;;redominatee, we have transient creep. In actual proacctice we have a combination of the two mechanisms, one or the other predom- inating depending on the temperature and strain rate conditions. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Rlflease 2003/12/04: CIA-RDP80-00926AD03100040001-4 England 1949 T7: PL.a2'IC BEFAVZOUR OP SOLIDS, Andrew McC&nce, Jnl of the Iran and stool Z titute, v. 163, Nor* p. 241449. h bald orial Lecture discusses the theory of plastic exte~ pin disa re t g g emen with the von"lmieee--F ,ncigr view that the plastic 1y a degener aced elastic stage whose behavior can be for fat d e neic Of elasticity theory. Equations derived f' om the a th ' u or s were tested by work on steel Cu Al Pb and oo t lji I , , , a cs. ncludes variations in piastio behavior; brittleness and plasticity; behavior of rubber; and creep under constant load. 19 ref. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For1lglease 2003/12/04: CIA-RDP80-00926AD03100040001-4 1949 TERMAL STSES IN TURBINE BLADES' M. J. Lighthill and F. J. Bradshaw] Ph oa. Nag. V. 40, No. Y)6, July, pp. 7%780. A theory of thermal stress in turbine bodes developed on the assumption that at each point of the blade planform the stresses are approximately those that would be not up in a free infinite slab of uniform thickness equal to the blade thickness at that point. Consequence of the theory are that in cooling the maximum stress occurs at all times rear the position of maximm thickness, but that in heating the largest stresses are initially near an edge, though an time goes on their position moves toward that of maximum thickness, and their magnitude increases. )Maximum stress is inversely proportional to thermal conduc- tivity for the lower heat transfer rates, but is less sensitive to it at higher rates. Approved For Release 2003/12/04: CIA-RDP80-00926A003100040001-4 Approved For R tease 2003/12/04: CIA-RDP80-00926AQp3100040001-4 1091and 1949 TM CREEP QF UETAI.'9 AND AI,LO , B. G. Stanford, Temple preae, London, 1949, 162 pp. (book). Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Release 2003/12/04: CIA-RDP80-009264003100040001-4 1949 MIw es, oxidation characteristion :ea after ezpoaure for 10#000 hours. . p. 934., period of 10 yrs. Sift abtaiasd in an . tion of Amer* Soo? etals# y. over 100 difformt irps at 94da 1050 A B. 1lder and Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For I' (ease 2003/12/04: CIA-RDP80-00926A 03100040001-4 1950 CAST f1I T -u.PF~:flT ALLOYS M CRACKa MIS J. - itmx-, R. W. H &U and 0. Ukw,, Nat. AcIv. Com. for Aero. h6 Note. 2037 Fob. 29 ppe. 2r pad ar ix.isns were t nifar1y heated to 1750 OF controlled water quench of one edge. 'mss cycle a thsr l-*hock failure occurred. Order of decreasing ing ," 16, 5'-590, Vita11iu, 422-19, X-40 and Stel ite 6. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Kelease 2003/12/04: CIA-RDP80-00926x0031000400,01-,. 1950 P BIL: Y` O? VARIOUS ALtO FOR HIGH 1 MPiSi Metals, v, 42, p, 45.-438, T eU, Time. ote cities of 8 Fe# 5 , and d Co-base allm v studied tests, drop-hammer fox g, and deep aitag testa. 1 e-w o give c rative to bil1ti ratiit s. 13 ref. Approved For Release 2003/12/04: CIA-RDP80-00926A003100040001-4 Approved For Tease 2003/12/04: CIA-RDP80-00926AV03100040001-4 Pt. P. 9 E. P. T. ?yadan, rep at suitably oriented sine eing1ee amstala rase e eap r esa#. laws S * Ata, in which $ is strain (none fter load application and A and a are eaa wtants lied sties Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For M ease 2003/12/04: CIA-RDP80-00926AT03100040001-4 1950 MADEM AL LO! 8TL FOR S ItE UP TO 700 F, 0, V. th W.3. 8e ns and L J. .li* fir.. Boo. for Testing I&ter3alae Cal properties of two s 1s, I 4W and 0.40% d towered to a hardness of RoOkwall 0-43, then tested 4, 600,t a nd 7O6? `, in co pressiGn at 75Q7, for orerep Wit, 600 arid 7W *t, and for Charpy impact strength between Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For' Lease 2003/12/04: CIA-RDP80-00926'xC003100040001-4 CERF-P AND RUPTU OF SEVERAL CMMIIJ -NICK L AUSTE TI STAIM TE C. V. Smith? I. J. Dmlis and L 0. buston, Trans.. A*ir, Soc, *taia, T* 420 p. 935-q78# die, "-9W* 304,# 316, 321, and 340 were investigated at 1100, 1300 and 1506 e miarestruaturat. changes oca during test, the offset er in xachwnioa1 properties, and the amds of fracture. 16 ref. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved Fo`i elease 2003/12/04: CIA-RDP80-0092 003100040( ]-*a, i; - :x States 1954 AN UMUAL EOT IN THE CREEP OF Z SINGLE CR!!SWS,, L. 8l.ifldn and X. Kautzmann$ Physical Review, eer. 2, P. 78 a 1, p 631.632. Experimental procedure and results of an investigation. A curious et--Larding" effect was found. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For i lease 2003/12/04: CIA-RDP80-00926AD03100040001.z4 United States 1950 , +,, A ts"A*t. J `t a' T CGT ZNTIR4N-MW ON THE SE$-RI/] "TUR$ PBOPERT 3 OF d TALS AT EL-EVA'J D 't . SP RATU$, 0, Cutler Shepard and 4il7.ia Sehalliol. Amer. Soo. for Testing Materials preprint 58, 5 pps. Stress-rupture testa in controlled atmosphere* were made with Iev-carbon steels and with Rastelloy "C'". Small. differences in the composition of environ- ment produced relatively large differences in the amount of intergrariler oracking and in time to failure. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Release 2003/12/04: CIA-RDP80-00926AQ83100040001-4 es 1950 PROPERTIES OF METALS AT VA D T FERLTU , G. V. Smith, Meohanicai Engineer ' v'. 72, Wity pp* 7994. Properties are classified in the broad oategoriee t strength; other physical properties such as thermal expansivity or conductivity,, elastic nodulis and the like; resistance to scaling or other corrosive attack; changes in mioroatruoture occurring during seance; and effect of these on properties. 14 references. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Qlease 2003/12/04: CIA-RDP80-00926603100040001-4~),,,~t, United States 1950 TINE CREEP AND I IGN S' SSES FOR CASTINGS RESISTANT TO HIGH EMPER,A. Nor S. Motto Metal Progress, v. 58, Oct. p. 4968. A table covering 14 moderate and high-temperature alloys. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For, elease 2003/12/04: CIA-RDP80-00926,x603100040001-4 United States 1900 THE STRENGTH OF WROUGHT STNS AT ELEVATED TEIPERATUM.. (book), R. F. Maier and J. J. Roger. 1-16 pga. Amer. Soo. for Testing Materials. Extensivo tabular and graphioal data cover tensile, creep and rupture properties of standard grades of both carbon and alloy steels. Includes sorider&bie tabular material with rather complete references, also extensive cur+rea and charts. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For1ease 2003/12/04: CIA-RDP80-0092603100040001-4 ited States 1950 AL 9N - 0LYBTEN M ALL4 F t SERVICE AT ELEVATED 7EVERATMMS, ey and x. T. Stewart, American Soc. for Metals, Preprint No. 12:, The mechanical properties at 815*C that are at least the equivalent of the best #o-base casting alloys, and they can be produced under industrial conditions without difficulty. Tensile strength, creep-rupture - roperties, and effects of Co and W additions. Chemical specifications, one based on a 35,000 psi rupture life of 150 hour mininum at 815?0 and the other on a 35,000 psi rupture life of 200 hour mini at 81.5?0 are developed. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For'Iease 2003/12/04: CIA-RDP80-00926-AD03100040001= united States 1950 TRAIN PATE AND TWERATUFS ON TI C2 EP OF COLD DRAWN INGOT IRON,, W U t D. 'e r kins amt Thom s G. Digger, Trans* Amer. Soc. Mtals, 42# p. 1128-*1129, Dis. p. 11 3-1130. f .. ,,,......r+.. .r.o .aw seo~ir.-&a" "Lwaau of S drde, v. 43, Aug. p. 117-131. Resx .ts ' of a mini ar study for Monel and omen free high- urit c P y opper were previousl reported. Since Monet arxd copper are face-centered cubic metals, the program was extended to include a study of the behavior of body-centered cubic iron as affected by variations in strain rate and in temperature. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For' elease 2003/12/04: CIA-RDP80-0092& 03100040001 4 Ed States 1950 CREEP OF ANW"D HIGH PURITY COPPER, Tech. Me" Bull. (National lareau of Standards),, v. 34, Sept. pp. 130.131, Based on paper by W. D. Jenkins and T. 0. Diggers, Jnl7. of Res. of the NAt. Stu. of Std., tr 45, Aug. 1950. Effects on creep behavior of stress, temperature, mechanical and thermal history, rate of loading, and sudden changes in both stress and temperature. 'fasts were made at UO, 250, and 30fl?g. Metal1ographic examination.. hardness measurements,, and tension teats were conducted at room temperature. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For'Iease 2003/12/04: CIA-RDP80-00926*'03100040001-4 .t, 1950 NT HIGH-T TI tOPERTIES OF NAGENSIUM.C FORGDG H. and C C .-g, __. . Cr 7 s 42 pps. . advisor Committee for ero . Tech. Note-.-,q- Experimental heats were madel by addition of a fourth element to the base.compos,ition contain 6% Cd' and Ilh. ensile properties at 70? and 600*P, were obtains t and =at + ompoaitions were subjected to short time ? ' creep tee a at 6fo F . Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved Forelease 2003/12/04: CIA-RDP80-00926 49'03100040001:=4 4 , Z'u; - S t, F E MOT OF SIG* PHASE ON T SHORT-TIM NIGH UMPE,WMa P WPBRTIES OF 2.5 CWWW-20 NICKEL STAINLESS STEEL, Glen J. Guarnieri, Jame MMer and. Frank J. !awter. Trans. Amer. Soo. Metals, v. 42,. p. 981-1000 dis, p 1000-'1007. Thing a 259 Cr, 20%. Ni stainless steel, with 2% Si, high-temperature tensile and creep properties (up to 100 - hr. duration) were correlated with type and pattern of sigma distribution. The hard sigma-phase constituent was found to increase materially the tensile and yield strength properties of the Cr-Hi steel up to approximately 1400?F., but a corresponding decrease in long- time creep strength properties occurred. The finely divided type of sigma suture was found desirable for minimizing room-temperature embrittlement ar indicated by bend tests. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved ForeIease 2003/12/04: CIA-RDP80-009267003100040001-4 1930 T.A AT 1110H 'BMPB:Fu TU (800k) Frances Hurd C1ar, 372 pp, Cons A compilation of regent avail*bie data on hig per tore properties. :2udes a theoretical discussion on plasticity and a section on teat metho and manufacturing methods fbr heat resistant alloys* Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For 1 lease 2003/12/04: CIA-RDP80-009261'03100040001; United States 1950 CC) &5IVE ' P TITS OF TIt&NIR 8HET T AT ELEVAT!D `t P ~R4TU `i, Paul F. Barrett., Hat. Adv. Cow for Aero. Tech. Note. 2038, Feb. 10 rsgs. Results of compressive stress-strain tests from room terature to ?F. Favorable oompressive Properties rties and mar-cod anisotropy in compression were noted. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved ForuRelease 2003/12/04: CIA-RDP80-0092003100040001-4 19 'EC' OF TE TLW ON THE DUL1 OF 1 ,8TICITr, Uhhriei x V* 58, Jay 1 85"89? to rature variation of Young's modulus for the following 21 Inaone ,, four aua i&tic s" i eas etesls, o iron, and 75S Ai-alloy A d is method of testis waa W d in Which tb vibrated tX nsversel at is resonant . ,uenoy. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For.Release 2003/12/04: CIA-RDP80-00926'AO03100040001-4 United States 1930 1 r 0s PRUPE1 T] OF METkLq AT ELEVATED EMl ERAT S, G. V. with,. Combus .on, Y. 21 ? P. b5-671 May" 0 51-53* Part 1t Metalw; strength at elevated temperatures, working stresses that be applied, ch aoteriaties of creep, and the relation between stress and `feats of non-soot' -nt etrese and temperature, metallurgical variablles,f miorostructurel air `surface changes, and scaling and corrosion. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved ForQelease 2003/12/04: CIA-RDP80-0092ff003100040001-4 United States 3.950 COMBINED TENSION-TORSION CIE?-TINE UTIONS FOR AWMINUM ALLO! 25-0, Joseph minx J. H. 7aupel and L. W. Hu, American Society for Testing Materials, Preprint 38, 17 pgs.. Investigation on. the combined stress-creep properties of Alcoa 25-0. Combined states of stress were produced by sub ject ng. thin-walled tubular specimens of circular eroes-neat ion to various combinations of axial tension and torsion. Minimum constant creep rates for various values of the stresses and for ratios of the biaxial principal stress from 0 to -1.0 were fount to be in approximate agreement with values predicted theoretically using simple tension-creep test results. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For &W ease 2003/12/04: CIA-RDP80-00926AO03100040001-4 meted states 1950 !NSITIVITY TORSION E-r- UNIT, A. E. Johnson, Jnl. of Scientific tr nts, v 27, Mar. p,. 74-734 data on creep of metals and boys has been obtained with stresses causing creep rates of 14"' r hr. or more. Describes apparatus for measuring rates as low as 10 per hr. Lees of the torsion meter are d into the ends of the thin-walled tubular test-pieces used. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Flease 2003/12/04: CIA-RDP80-00926AA'03100040001-4 teas 1950 STING OF GAS TURBINE DI5 , atoMotive 1r-dust ta, '-. 102, Jan Pp. 40-41 0 Apparatus d saigned. for determination of plastic and creep strains speeds up to 35,,OOO rxsm and temperatures up to 15OO? '. Approved For Release 2003/12/04: CIA-RDP80-00926A003100040001-4 Approved For Release 2003/12/04: CIA-RDP80-00926PM03100040001-4 ct Stated 1950 New creep az strew-ruptuM equgme it of Babcock and Wilcox Co.,, Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Release 2003/12/04: CIA-RDP80-00926A@03100040001-4 1950 Pt OCKC & WILOOX COMPANY IN TALW NEW LABOPATORY EQUIP T FOR CREEP AND BTRE88 RUPTU . STIE, Industrial Beating, V. 17, June p 988, 990, 992, 994. Approved For Release 2003/12/04: CIA-RDP80-00926A003100040001-4 Approved For Release 2003/12/04: CIA-RDP80-00926!03100040001-4 United States 1950 t; Q OA TORY STUD CREEP AND 5 `RRSS*R `UFE, Industry and Power, v. 58, 1950, p, 103-104. New testing laboratory of Babcock and Wilcox. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 meted States 1950 Product Engineering, Y. ., lay P? 14349, ,~ llJ ~~ ~Tl ~'ACHTI+tS, for Condensed from *A Ilig _Speed High ' B. t re_ Pre i and n TOOL g Loh- iIne e for Sae Tilrbine Task Jhaearch , A. C. Haggs before Society for ierimental Stress Analysis.. C tttrbix disk tooter for the determination of plastic and creep straits at temperate r a up to 1500? F and rotational speeds up to 35,000 rpm- Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Tease 2003/12/04: CIA-RDP80-0092603100040001-4 1950 R P TnS METALS AT AT'ED TEMPER&Tum, (B0pk , G. V. Smith, 401 pga. Mc?ira; Mn ook Co porgy and Votal1urgical Engineering Series). A compreleneive s uarg of available kno*dedge on the effect of temperature is at ordizea anci elevated temperatures. Effects of such-ariablee as vibes the composition of "super- Iloys**` Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Release 2003/12/04: CIA-RDP80-00926AQO3100040001-4 1950 EP OF METAlS AM ALLQTB, E. Q. Stanford, Temple Press, Ltd. Bowling n Lane, London E.C.1, England 15 a. (book Creep teetingl the creep curve; meta1$urgioal factors affecting creep; aerthods for presenting creep-tent results; and haniim of creep. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved Foo,.Release 2003/12/04: CIA-RDP80-00920003100040001-4 1949-50 FACTORS A ECTING THE, STRENGTH OF MK/`ALS AT HTGH TEMPNRATUHMs,, A. 0. lietcalfe Metal Treatm t and Drop Forging. v. 16, pp. 235-246. A ache for claseif cation. By adopting a simplified pictures of the mechanism, three gran ps of methods are obtained: first, those which raise the soften .ng temperature; second,, those by which resistance to slip may be raised; third, those which decrease the chance of failure in a grain boundary. Attempts to asses the relative impottanoe of each factor. 48 ref. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For?Wlease 2003/12/04: CIA-RDP80-00926A*O3100040001-4 1950 CREEP DU TO FLUCTUATING STR1 SSES AT SILVATED TE3iPE.P.A URBZ,, H. J. Tapeell, P, 0. Forrest and 0. R. Tremain. Engineering v 170, Aug. 25, pp. 189-191, (A condensation). Results of experimental study for the heat resisting materials Rex 78 and Minoralc 80# and ftr the A1-.alloy RR59, also for 0.26% C steel. FaEperi'mental w*A theoretical data are compared., Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Release 2003/12/04: CIA-RDP80-009264003100040001-4 En .and 1950 TIM M CHkNIGAL P1 DP M3 OF SOME IR?UGET AND CAST ALQMT ALL07B AT ELEVATED TEMPERATURES, P. L. Thorpe, G. Ti. Tremaiu, and R. W. Ridley, Jul of the Inst. of Metals, v 77, Apr. p li1-14d. sulto of tensile, fatigue and creep tests at various temperatures in he range 20-453?C on 17 wrought and 7 cast alloy -, together w:fth results for ~scme experimental W alloys developed during the last war by the uded Royal Aircraft Establishment in BritUn. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For'elease 2003/12/04: CIA-RDP80-0092603100040001-4 D V. VO, 1950 EATON ClikRACT ISTICS OF FI GREY CAST IRONS AT 400DEG. C, 500 DEG. C, . ' ottle, Inst, of British Foundrymen, Paper No. 973, 9 pga. Advanced copy. Materials, testing procedure, and temperature contorl. Rupture, short 'time tensile,, creep,,:. and stress-to-rupture tests-. 15 references. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For (ease 2003/12/04: CIA-RDP80-00926703100040001-4 1950 GRANISM OP PRIRX C WP IN META, W. A. Wood and R. F. Scrutton, Jhl* of the Iwtitute of Metals,, v. 77, July pp 423-434. Studied experimentally, using 99.9 .Al. Niorographs and X-ray diffraction rns illustrate results obtained, wh- oh are analyzed theoretically. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For release 2003/12/04: CIA-RDP80-009267M03100040001-4 1950 MEP FACTRUES? R. W. Bailey, Institution of Metallurgists, *The Frac of detals#* 1950, p 29--1. lation to C-?NO steel. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For I've ease 2003/12/04: CIA-RDP80-00926AW03100040001-4 3,950 ike and D, A. Sutcliffe, Metall, ?. 4, M*y, PP 191-193. amounts o 02 f g2 , and Si greatly Increase the hardness and tensile strength of Ti. without eliminating its ductility &t.room temperature. Elevated temperatures greatly decrease these properties. 16 ref. (in German), Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For'elease 2003/12/04: CIA-RDP80-00926003100040001-4 1950 ~A 14 '1 - $X-RAY OBS .RVATIOI+ ON THE NP_TTJR OF CREEP 17 'OR ,TION IN POLYCRYSTALLINS ALUMr , S. A. C lnan and B. D. Burns, &1 of the Inst. of Metals, Y. 77, 3p 445-45 Back-reflection Law-* patterns were taken from the same series of locations on a large-grained Al teat-piece after successive amounts of. creep deformation at 2501?C. From analysis of the asterism and movement of the reflection cotes relative to the strdss axis, it appears that creep deformation up to about 3% extension in 170 hr. In associated with slip processes. Later stages are characterized by presence of numerous fine units or cel:le formed from the previously distorted material. 12 references. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For eIease 2003/12/04: CIA-RDP80-00926M03100040001-4 England 1950 HUT MISTING STEW: INFLUENCE OF ALWY ADDtTI4)y, 0. T. Oolegate, Metal Treatment and Drop Forging, v. 17, 5'uvmer 1950, pp 93-1O1, 109. Various types of steels and effects of mall additions of other elements such as Si, Cb, Co, and No, to each type. Oxidation resistance, creep, tensile strength, yield strength, elongation, area reduction, proportional limit. and Brinell hardness are tabulated and charted. Approved For Release 2003/12/04: CIA-RDP80-00926A003100040001-4 Approved For Kelease 2003/12/04: CIA-RDP80-009261 @03100040001-4 195 A FEW SHORT-.f.IiEE, GOTH AND CREW TE$$ ON AN %W-IOU J 4Rn-IT C GM IRON, J. W. Grant, British Cast Iron Raj. A86oe. Jni of Bea# and Dove, v. 3, June pp. .-r4l5 Peeulta of three ores tests and a growth test at 500?C and of short-tame t 400, 450ana 500?G. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved Forelease 2003/12/04: CIA-RDP80-009267003100040001-4 3-950 \ k TR1 MC NThM OF CRE1P AS REVEALED BY X-RAY METHODS, G. B. Greenough and Edna U. Stith, Jnl of the Inst. of Metals, v. 77, duly, pp 435-443. A hypothesis is proposed to explain in term of dislocation theory the recent observations of Wilms and Wood and of Wood and Bachinger in relation to the mechanism of deformation of metals. Some now X-ray observations on Al which support the hypothedn. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Ref'ease 2003/12/04: CIA-RDP80-00926AQp3100040001- z G " CAc \- t'~ GAS SURFACE E CTS IN THE CREEP OF CADMIUM SINOLE CRRIS Y. 165, Apr. 15, p. 6n-622. 0. F411,, Nature, When oxide-coated, single-crystal Cd wires are im ersed in an ale such as Cd012 creep rate is increased mel$ times. However, this rate later decreases, and may stop zkbvqO= altogether due to formation of a crystalline dendrite coating. Electron ieroaoope investigation showed this material to be Cd(Ofl)2. Mechanism of the creep effect is proposed. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved Forelease 2003/12/04: CIA-RDP80-00926%003100040001-4 CREEP 1 1950 BY A CkRnZVER-BEND' METHOD; G. T. Harris and ds c Loft and Steel Inst. V. 165, June pp. 139.144,, Cantilever-bending creep testing in eho n to have Magee over tensile testing for high temperatures and where the preparation of specimens must be reduced to a mcbm d nimum,, such as for unmaohinable materials* There is good correlation between results obtained by this method and conventional testing at plastic strains up to 1.0$. Toot data is for heat resisting steels. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Tease 2003/12/04: CIA-RDP80-00926A@03100040001-4 A0 1950 CW" AND FATIGUE TESTS ON 00MMERl IAtLT' EXTRUDED LED AND LEAD ALLOT PIPES,, (Continued), J.. leown and L.E.T. Hopkins Net? ,lurgia, v. 41, p. 219-223. Investigation to determine the degree of reproducibility to be expected from materials produced by extrusion on comaeroial presses. Effect of cold work on Tadanac lead from the *i press, on alloy of 0.005% Ag 0.005% Cu, and an 0.015% To lead. Effect of heat treatment on Tadanac lead from the pipe press. Fatigue tests and results. Approved For Release 2003/12/04: CIA-RDP80-00926A003100040001-4 Approved For-Release 2003/12/04: CIA-RDP80-0092M003100040001-4 1950 CR PAN FATI{)IT ,9 ON COMWFRCIAILY EITRUI I? LEAD AND LEAD ALLOY P3 , J. McKeown and L. M. T. opkin,, 1tallurgia, v, 41, Jan. p. 135-X143.. Reproducibility to be expeoted from materials produced on oommercial presses. It is oanoluded that the effect of alloying additions cannot be determined on extrusions male on presses where variables are not under sufficient control* Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For F!fease 2003/12/04: CIA-RDP80-00926A063100040001-4 1950 CREEP IEFORMATIoN OF Mt+,TAI2, L. Rotherham and L. W. Larks,, Research, V. 3, Sept. pp. 434-436. Some observations of grain growth in a 0.5% Ag aluminum alloy in which the effect on creep rate was not Yer large. Observations suggest that the breakdown to subgrains is not the primary cause of creep, but a secondary effect resulting from creep. Approved For Release 2003/12/04: CIA-RDP80-00926A003100040001-4 Approved Fo lease 2003/12/04: CIA-RDP80-00926 ?03100040001-4 '.950 APPARtTUS FOR 'Hg ?.A suR ` NT of CREEP R n TUATING STR , W. R. Tyldesley Metall urg ,, ' 4:2j, June p. 45-48. treso system oompr-Ises a steady load on ich is superimposed a smaller load fluctuating at the rate of 100 cycles per see. 19 references. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved ForQelease 2003/12/04: CIA-RDP80-0092W03100040001-4 1950 THE BRXTUR NO*-nRROUS METALS RESEARCH ASSOCIATION; CRT EP AND FATIGUR TESTING EQUIP t " IN THE LABORAToRIE$, J. MeKeoim, Metanurgia v. 42, Sept. pp. 189-196. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Release 2003/12/04: CIA-RDP80-00926*003100040001-4 1960 A $ 'LE CON T STRESS APPARATUS FOR CRP TESTING, L. It. T. Mopkin, Prof. I Society, v. 63 Sec. B, May 1, p. Simple device which can maintain stress on a creep sp imen constant to within 0.8% during uniform extensions up to 100%. The apparatus is suitable for slow rates of strain. Examples of creep curves obtained for Pb and a Pbn alloy. Goad agreement with the Andrade creep equation was observed in both oases. Approved For Release 2003/12/04: CIA-RDP80-00926A003100040001-4 Approved For'OKelease 2003/12/04: CIA-RDP80-0092SWO03100040001-4 DESIGN AND CONSTRUCTION OF EQ"JIP NT FOR A SMALL ST: SS RUPTUM CREEP LABORATORY ]Vlletallurgia, v. 42, June, p. 37-44. perienes in the development of a creep testing laboratory for life-to- rupture testa on materials at 90000 using miniature creep testing machines. Although designed for high-temperature teeting, the 4paratus has given a tisi- factory pwformancs, with only minor alterations., at temperatures as low as 1.x 0?C. Approved For Release 2003/12/04: CIA-RDP80-00926A003100040001-4 Approved For4ielease 2003/12/04: CIA-RDP80-009264DO3100040001-4 and Michel R+udier, Revue de etailurgie, v. 4 t he literature and expmriwn 3. irestigation of Ng and AL DATA ON CREW AND YATION OF POLTCR!ST 9.7% Cu, a dic t of tmech ni i pro 24 ref. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For.iielease 2003/12/04: CIA-RDP80-009264003100040001-4 1950 COI HVTION TO THE STUD! OF INFLUENCE OF MICROSTRUCTURE ON THE HEAT RESISTANCE CIF STEEL (In French) Oeor. Delbart and Itohel Revery. Revue de Metallurgie, Y, 47, Mar. p. 215-233 discussion p 233-234. Investigated for a low-slay Cr-Mo steel produced in a basic electric furnace. Creep properties were determined at 450, 525, 550 and 575? Q under loads of 7, 11, 15, and 24 kg. per sq. mm. in shortened long-time tests. Influence of heat treatment on creep properties. Microstructures corresponding to the various treatments are illustrated. 14 references. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved Fow.Release 2003/12/04: CIA-RDP80-0092SAf003100040001-4 1950 TESTING AND STRENGTH RESEARCH IN (E 'IN THE LIARS 1939-1949, E. Sisbel* Schweizer Archie fur ange andte Wissenschaft and 12, Apr. pp 97-114. History of materials testing in 0ermany. Activities and advances of mteriale testing during the ear and its revival after the war. Strength behavior udder static and vibrating stresses. 30 ref. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For.Release 2003/12/04: CIA-RDP80-009264003100040001-4 1950 ? NT.r I pHOBLEms IN MEC kNic. or s RI CT S (II German) Ins Ttatter, ZeitschrII.ft doe Vereinea D uteohe: Ingcnieure, v. 92, Jan 21, p 57-61, ho effect of flow phenomena on such physical properties of metals as toughness, elasticity,, shear strength, etc. Relaxation time as a specific variable; elastic and plastic properties of materials;; creep phenomenal stress and strain; tough-elastic hysteresis] and the relaxation spectrum. 16 ref.. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For iWease 2003/12/04: CIA-RDP80-00926AW3100040001-4 1950 / \?'' ti k ON OF CREEP TESTS (In Ger l), Nikolaus Ludwig, Zeitsahrift fur rde, v. 41, Maar* p. 87-91. The designer can apply if. Rokardt's exponential law in order to estimate, the basis of experimentally established creep-stress results, the expected expansione, exceptions being materials with a tendency to hot shortness. If he nterial is to be used at temperatures exceeding WC,, the esti ates must be based on longtime creep test results. 20 references. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Release 2003/12/04: CIA-RDP80-00926AD03100040001-4 1950 NG of ALUMINUM ALLO (in German) Hugo Voask filer Metall nde, v. 41, SP's p. 1"-151. Reports results of tests made on a series of malleable and cast Al-alloys to determine their tensile strengths, 0.2 and 0,02 yield strengths, elongations, and area oontraetions between room temperature and 300?C. Results are supple- mented by published data and thus expanded to 200?C. Includes graphs. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For#i!elease 2003/12/04: CIA-RDP80-00926"03100040001-4 1950 CREEP OF STEEL UNR STATIC MESSES AT ROOK TEM EPATUR , (In German) Walter daniohe and Gunther Thiel, Archiv fur das Ei.eenhuttenweaen# v. 21, lfar.apr? pp 105-11.8. Creep behavior of six carbon and low-alloy steels at room temperature and effects of heat-treatment and cold working *en stressed below the yield point up to several hundred hours were studied. 34 references. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For ease 2003/12/04: CIA-RDP80-00926AQ,03100040001-4 1.950 TEEX.S ?O THEM iZNCT TO CREEP-SAS E RZTT. M, NT WITH U-SRK D AND BY SLOW TENSE TESTS, (in German), Wilhelm Ruttmann, Gerhard 1, and Rudolf Soi xn. Arohiv fur das Eisenhflttemresen, Y. 21 duly-Aug. pp. 225-233. Tests were made with notched and unnotohed ferritic and austenitic steal ? bare at 450-700?O. Comparison of results with those fr. m long-time creep tests (3000 and 10,000 hours) shows that the described method permits relatively rapid determination of the tendency of heat resistant steels to creep-stress embrittlem meat. 14 references. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For elease 2003/12/04: CI4-RDP80-0092& 03100040001-4 1950 r .k RECORDING SRR G SASS V3 T PM@;.TUR9 CURVES ' ' Cft In Germ n) bane Sabah, Archie far das E1senhuttenweaen, v. 2 Jen-Febs p 43--+7 discussion p, 48. Design, operation, and result. The instruemeut can be used to a tu,dy various metallurgical problems, such as the creep reaietanae of eteela. 27 references. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Lease 2003/12/04: CIA-RDP80-00926AQ93100040001-4 1949 XCUBD$l t CREEP RESISTANT ALEX, K. V. neey and M. T. Journal of Research, v. 27, sec. F,, Feb* p. 80-98a and above. Certain eombirs tionn of the three metals possess tensile y of a aeries of these alloys to develop one for use uder stress, at engthe well over 100,000 psi. at room tempcraturej certain characteristic microstructures, dependent upon the ratio, are essential for these high strengths. Creep-rupture tests at ?15?C showed that some of these s.l.lcys in may re>speeta to existing high-temperature alloys. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For'Iease 2003/12/04: CIA-RDP80-00926603100040001-4 1949 SO EXF + WITH Tl QR BER VIOUR OF V9` RIA $ A. JobannsoA, Engineers Wiest. v. 10, Oct 1949, 349-342; disouasion, p. 342-344, Translated and Oondenzed from Te ssk Tidek ift, V. 79, Feb. 19, 1949 P. 127-132. . with high-4 pera' a materials steam tiorbines gas sting mlobinte1. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved ForQelease 2003/12/04: CIA-RDP80-0092674003100040001-4 1949 NWWXCAL ?R(PERTSE CF BOILER sTEEI AT KXVATED ER s (In Snedish) to r Lill jokvisty, Jsrnkont3rots Anraler, v. 133, No. 11,0 pp. 519-540. Meohanioal properties, especially yield points, of 14 swedish boiler steels were investigated at elevated temperatures. Average .old points at temperatures between -40 and 4?C are clxrted. Tensile strength, elongation, and reduction in area are also sh wn graphically. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For I3rtease 2003/12/04: CIA-RDP80-00926AQ03100040001-4 1948 1NFLUITE or CC ,N OF CARBON, CGf ROUUM3 AND TUNGSTEN ON C NICPL PROPERTIA5 OF CERTAIN VALVE 3ThE , (In French), S. tioshiba and K. Tanaka, Circulaire d'Tnfcrn Lions Teohniqui-st v. 6, Aug.Sept.Oct. 1949, p. 395-399. Translated from Tetsu to Hagane (Japanese)? v. 34, Aug. 1948, p. 13-15. Tabulated and aharted data including transformation points and effects of temperatures ap to 1350?C on mechanical properties and oxidation resis- tance show that Cr-I steels are as satisfactory for valves used at high temperatures as Chi-' steels. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Release 2003/12/04: CIA-RDP80-00926AU93100040001-4 1949 STHDIS6 ON THE CHANT OF VARIOUS PROMRTIE3 OF NgTALS AND ALLOT DUE TO TWISTING. I. (In Japanese) Nabuo Shiota and Chyoei Onozaki} Nippon J'inzokut Ga kai-Si f Jnl of the Jap=an Inst. of Metals),, v. I3: Aug. P. 37-39. A simp a twisting n Chile. .pa rt includes electric furaace for at elovated temperatures. ypical results showing transformation for various nonferrous alloys. Approved For Release 2003/12/04: CIA-RDP80-00926A003100040001-4 Approved For Release 2003/12/04: CIA-RDP80-00926AP03100040001-4 Csech. 1950 W ION AT H ION TEMPFIkiUM. (In ech.) Alwander A. t h t ckov, H atniolrae Liacty, v. 5, Feb. p. 52-56. TWO theories have ben proposed for correlation of r+a axstion and creep data (the ti me-hardening and the strain-bar rdening theories) . ?cperiaental data show that neither theory correctly represents the above relationship because reelaaaaati caa differs from creep in connection with both the eaechani an of plastic deformation and the nature of internal " ro echanical" processes. that strove relaxation must be investigated independently of eraep. 17 reference Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Release 2003/12/04: CIA-RDP80-00926103100040001-4 1950 To ?) V- 1950 pp 1079-1082* OF THx CREED' OF METALS (In Russian),. V. I. Likhtman, Dokiady Akademii SSSR (Reports of the Academy of -Sciences of the USSR), new ser., v.72, Creep was theoretically investigated at room, high, and low temperatures under different applied loads, Formulas are proposed which describe the constancy of internal cohesion of metal during creep. An equation for determin- ation of the miniiia rate of oreep is derived and interpreted for different values of the variance. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For'Release 2003/12/04: CIA-RDP80-00926f 03100040001-4 Russian 195 S'ST1 MATIC INVESTIGATION OF THE RATE AND TEMP tkTURE DEPENDENCE OF RESISTANCE TQ BWTION Cr SINGIE-PHASE METALS (in Asian). L. D. Sokolov. Doklady Akade ii Nauk SSSR (Reports of the Academy of Sciences of 1 USSR), new ser. v. 74? Feb. ii, p. 839-Saw Investigation for Pb, Sn and Cu from room temperature up to their respeo- rive melting points and for various rates of deformation. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Release 2003/12/04: CIA-RDP80-009263100040001-4 Ruasia 1950 MHO OF COMPiESSION TESTING, (In Russian) K. K. Likharev. Veatnik nostroeniqu (Bulletin of the Machine Construction Industry), v. 30 Naar. Paroposes, for testing of materials in the uniaxial, uniformly stressed use of hollow cylindrical teat specimsna whose ends are conical surfaces. The concentrations of lobar, stresses encountered in conical solid specimens is thus eliminated. Tests of mild and red-hot steel, aluminum, silumin, br&se, reline, and gypsum. Formulas for calculation of data. Approved For Release 2003/12/04: CIA-RDP80-00926A003100040001-4 Approved For ease 2003/12/04: CIA-RDP80-00926AQ,p31 &A0442 -4 A I?'~.;VIs~711 OF TT- ; I ORLD LTTFRATUF, ; ON TIC CR:CEP OF TNETALS AT K:HWATED TEf PI?;RATUR:NS 25X1A Purpose: The primary purpose of this survey is to determine the relative activities in the various countries of the world on the specific subject of the creep be- havior of metals at elevated temperatures. A secondary objective is to ascertain, insofar as it is possible, the sources of information generally available to the U. S. S. R. Method: 1. All readily available sources on the published data on creep of metals over the years of 1945 to the present date were reviewed and compiled in Appendix I. The principal sources of these data were: a. A.S.M. Review of metal Literature, American 3 ciety for Metals, Cleveland. b. iaetallurgical Abstracts, Institute for Metals, London. c. Engineers Digest, London. Cross-references and secondary sources were investigated. Undoubtedly a few published articles may have been overlooked. No data were available on unpublished reports of companies, scientific laboratories, or government laboratories of the countries in which it might be presumed that research is being done in the field of creep of metals. Such data could only be obtained by direct visits to foreign countries and direct discus- sions with the personnel engaged in this work. In some eases, e.g., the U.S.S.R., -these missing data might be quite voluminous. The impression is verified by the general articles reproduced in Appendix II. Apparently most of the research being done in Russia is not reported in literature readily available to engineers and scientists in other countries. These factors must be considered 17hen the Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 attached data are evaluated. Approved For lease 2003/12/04: CIA-RDP80-00920 03100040001-4 2. A simple statistical method of assembling' the data was used. Articles appearing in the open literature were classified as to whether they were primarily theoretical (T), whether they primarily concerned engineering data (D) or whether they were devoted primarily to equipment (E). The number of articles on creep of metals is summarized in Table I as to year and country. Other methods may prove superior to this method of reduction of the data. Perhaps the number of words would have been a more significant quide as to the extent of activities in this field. Undoubtedly a critical review of the quality and uniqueness of each article would better serve the objectives of this survey. But in view of the crudity of the available information, and in view of the knowledge that this information might be quite incomplete, the easy method of analysis by articles was adopted with the hope that the qualitative trends indica- ted by the data might be somewhat significant. 1. TvTore than one-half of the total publications on the creep of metals over 1945 to 1950 originated in the U.S.A., whereas about one-fourth of the publications originated in England, and about one-eighth in the U.S.S.R. a. The U.S.S.R. publications are predominantly theoretical su-gesti_ng that the investigations on creep properties for engineering data are not being published. b. There appears to be very few publications on creep in Russian journals in 1950 suggesting that additional restrictions may recently have been placed on publications in Russia. 2. Most of the creep data available to the U.S.S.R. from sources outside of Russia probably originate in the United States of America. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 ~ftIOA003100040001-4 )'"` 25X1 A 25X1 Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved Folelease 2003/12/04: CIA-RDP80-009294003100040001-4 I rerieu' of Russian -uuiallurgiral journals. their origin, hisiorc and untsnledV dist,p- pearance: with notes an the shifting tactics in tioriet reporting of pro auction figures. The trova Curtain In Metallurgical Literature 1'nt I llrrnnIm, ensl'II' i allil IIIsIraels of ^ Itussi:ul nu?talIurgical ai'titles published in the.tune Issue of.lltIrll Progress were of Ihlitit?ul: r interest Ili me. bermim, I hale Iieen ruticerm?d with Itussiai technical pnhlic:ltions for several years.* The editors remark that the Itttssians nlay eonsidtr rerlain technical journals misuilablt? for esporl. unite correct' In fart, This iron curtain st.u-led to close perceptibly ghoul ten Fears ago. It nlay lit, ,)I interest to record mint-thing further reg:n'ding the t?bbt and Ilosc of Soviet n1et:111ui'gir;ii journals since their conlp:tratisely recent inception. It Al started ssilh the first live-year plan 192;11, Applied Ili the Russian steel industry, this plait ensilaged the building of such new works as Magnitogorsk t where eserylhitig is "tile biggest in the world"t. .1 frightening lack of Russian tech- nical brains for the tasks ahead bt-r:une apparent. mill foreigii engineers sere imported. 'T'ogether with this decant of t'sprrls saute foreign let?hniral journals. I'mlel'slanhtbly, the Sttsiets slanted journals of their .\%n. :[till in tltet years betwet Ii 19211 and I9:II, it truly :tstoundinr{ nu?talIll rgitai literature sprang up. fht-rr %\;I%, tbt,sr Al. the nion11 It- rtrg:nt ,tf llle Pile-1?ear Plan Conuuitlct? for the tiled Industry. ?1`-ntlou's \011 - the aolhttr Is tttt nntt[t?sl. lic st,rlt-d translating foreign mclallurgirll Indices on :t Iire-I.ou?c b:IVS in I!t_1i, aflul its art'l'.il nI this rtutn- LIs h-tun I;.n.n-t.t. ht~llussing it lu?riod with lilt- shttrt - Inttl Iiepubllr tSlt-clt lit-seart-11 Corlt. In [lit- rarl% Mao',. Its c,I:Ibllshttl his ,\%u organv.Ilit,n. and fla, 1" it de,t rtbetl bs lilt- t,f \ inrrlras ttot,t tntint-lit I e;et.tlfur t;Isls is has lttg ?uot?atl tit abilif% II I lobo teal tr.utsl.tlutc". Nil . Ifrnlnccr', II.olst.ttit'tis are rspccialls sell I,n,nsn In tnt-l.Illtirgtral Ltbt.raloll,s and rt-,r.urlt nnl [till L,ti,. called 'Si siet Mi?lallitrgy" , Sw,rt.rkollo ?ltrlnllur- giy,t,. '['his journal appe:ded thinly to iron ;lid steel engineers anti also r:u'rit?tl the ntonlhl} pro- durlion figures of lilt- "rapitalisti,?" crttintries, but sfgnilir:idly and quilt. in hteping will[ tilt- iron rurtnin mentality. not lhost' fill- Itussia. I hose No. I amt 2 of 193tt, so Iht- journal must brie tasted at bast (ell \u'ars. .\n well older technical journal ssas "\lelal- Iurgist'' ?.llrhillur!,,? it 11:ttill sonlt-l} made-till nionlhls, st:n-led ill 19211 and dcsoted lit both fer- rous anti nnnferl?ntis itntalhn-gy. Till- viretilatioit rose to -1111111 before this journal disapprart?d abruptly in 19111. During [ht- 15 ct acs of its esist- rnt-c, "Metallurgist" piWished more Ih:ol II111 articles on ntetailography, 1:41 till rolling, omit thar1 11N) on lilt- protturlion if stet?1. almost It") I'll lilt- prodnrti,tn of pig iron, and 1II1 on the prrt- duetion and lilt- proressin;; of nonferrous allis. "Tilt, lescl if flit- articles, lhtort-tir:Ii as \% 01 as prat-livid. sass remarkably high tut uuse till' suit iii . editors sere the best In Iit? found in all It it sslit lit I1,1211. still another Illo"Illh ).\;t% Ill' Iht? steel iuthtstry, rntitittl ''.\rhit~sentcnls of \1t-1:tJ lur9s it Home anti Abroad" U,tnrr: The t-oti tent sac disidt?rl about labially ht-tsr?en or ginal eolitriliulions of a prartic:Il nattirc tn.u,l oI thrtn silh a distant ll~ local slant :nil detail tl .thstraeh. "fit-11 illtislraled. it lilt- lort?I;.;n hleralur, The tut.. ~eplrlnlu r, !'Lift: l'ui," S S t Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved Fol'"Release 2003/12/04: CIA-RDP80-009261x903100040001-4 of this journal was Short: it ended with Nil. III of 7. In Ihe mule year. 11121). the old "Journal of Ili,. Russian \Iciaunrgieal Sueiely" i %lnrrnol lln.es- kolN, .lieh-Ilarlliche.skolpo Ohsheheshm) expired after a more-or-Icss coniinuuus existence of ahn(osl 211 years. Among its contributors we field the Hanes Most illustrious in Russian metallurgy and melaIlography: I). K. Cherm,v, one of the early students of metals who achieved international ree- ognilion: Col. N. 1ielaiev. lung since living in France: A. A. Rochvar, probably best known from his textbook on inetall(ography: A. A. Itaikuv, it prolific writer and excellent leacher (the Aeademi- cians N. T. Gudlsuv and N. V. Svechnikov, and Professors N. A. Mlinkcvich, It. V. Stark, and M. P. Slavinskii were among his Pupils). Other pre- Soviel journals lo,ssilly of interest to metallurgists were the "Rallclin of the St. Petersburg Polytechnic Institute" (1ne.rlijr- SPIT Polifekhniehrskayo lnsli- h-le), "l'rd Technics" (l'ralskii Tekhnik), and the "Journal of the Russian Physical-Chemical Soeicly" r Zhurnal Nusskoflo Fiz:Rhin,. Ohxh- ehrsluol. In the 1907 volume of the latter. we Had it paler on Ihe crystallization and structure of steel by A. A. Ilaikov, the :line Haikov who in 111-1-1 look part in a lively discussion on the use of oxygen in blast furnace operation. In 1930, it fourth monthly devoted entirely to ferrous metallurgy appeared under the nnnnc '"1'he(ory and Practice 1.l' Mel atlurgy" , Teoriyu i Prnklikr- ,11eh-llurylii ). Despite Ihe duality in 11.11114'. aa,sl of file papers were in-alit-al. Like "MeL11- lurgisl", this good journal disappeared xv'ithuul warning 1.r it farewell, in Deeemlten 1910. During the second hall' of its life, it paid increased allen- lion to prubleuls of plant construction: lime rest of the articles dealt with iron nand steel pr ohu?tiu t. rolling. and quality control. Special attention was given to seamless tithe prorha'lion as, at that time. till)(- mills were first Martell in Russia. The year 1930 was marked also by Ihe begin- ning of the most important Russian journal lite welding. It is still being published. and received here, under Ihe (original title "Aut(ogenous Weld- ing" cAnloyennoe Delu), but the name must not be taken literally, as all of the welding processes receive attention. In the same year. Ihe first issue of the Russian "Foundry" (K.ileinor Dells) appeared. This was tin interesting experiment each of the articles could be easily detached and tiled separately according to it convenient system, and each page was fully indexed at the top. Even the translations from the foreign literature were treated In this way. It expired with No. 6 in I9-I1, bill may since have been revived. In 1931, the important event in Russian metal- lurgical literature was the appearance of "SIvel" 'Stall in the South of Russia (Kharkov). tinder the editorship of the eminently aisle I. 1'. Hardin, Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved Fo elease 2003/12/04: CIA-RDP8 Uf'tal/nrgirrrl ,lorrrnnls Currently Pul,!j.+1,,d in the tirrri"I I ni,rn. !)"A Int?~ti?non' If r?ldink....llnmbin' In.,!' unit lnstrrnnrnls" (Ind "tfnr?hine RrliMin}f llerulrr fit'. si l reportable. If ben hill thrr bromr "ounuh+rrib,d ntentllcr of Ilic .tcadcnl}'. 'I'bis journaI, Ihr lift 11 of Iht' series devoted to ft?rrous metallurgy. con- lained an cn,-rnrous auinunt if information. Each issue carried from two to four arli,les ,-n each of the IoIIII,iI I g suhjeet ; I,Ili st furnace, steel pro- duction. rolling, ^u?tallogralllle, and local treatment. 'l'ucre \\rre also halt-". nn III \\er cronumy and sr\eral d(L?tiled ah,lracls ,-I' important foreign IlaI,ers. Without ally ado, llnee \\:u'ning. ibis lint. journal ceased Irlthlicatioll in I)eretnl,cr 19111. lout in .lanunry 191 1, a nem one ul the s:,y,tc uauu? ul:ulr its al,lu?aranee, this Bute fr,-nt tlos,u\\ and tinder a rehilicelc 11111,114m it editor. It, "n\cr.ge \\ae no Ies, r\Irnsi\r Ih;ul that of Ilic old "Sled". h,?\\- r\,l?. Ihree olloel' \\urlh~ journals in the letluus livid load hecn sarritieed. Let it, go 1,,n?1, 1, 1 I912. In t11al .\ ear. I1," jnurnal "Itare Metals" lit"1 1 llrf,tFll1' made its al,lu?al;,lle,?: its columns \\cre d(?\(lc,l l,- metals sorb as 1,er\ Ilium. /ir,?onillnt, "oluntl.iuut, Icu,lalum. tungsten and uranium. and a mull??r of other Metals \\It i"h ill this routtlI to III oot he "on- si,iere,I rare fur r\atnl,lr. tn,d).bdtnutn. tin. nu?r- I'll r\ :11th ^Iltit1111 . Iirtra"lor ":u'1,i It s also rrrci\rd Ill 111,11 llrutIt n 1n "ILtie Metals. 11 ,lis- al,l,c:'r,l \\ilh Ihr Best ,ssur ,-I I9:t'+. m,tl,rr iournal. -I.ight \I"1.1Is.. Lr,lkir 11. i'iill) . " nrrln_ "\ urea in 1'1:15. :,lunnnutn ;in.l n1a_11rsiun, also .t Ittirtt nonferrous journal, "attest "t'??Iorr"I Metals" ? Ti,..t inur llrbllll! has hcen rltj.?yirl; .1 longer life. t\'hen. in 1:111. it nu?rgr,l \\itt1 "tiol,l Imlustrv'" . %ulnlolln l'r,-nmyshlrnna.f it ar.luirr,l the n:rlne ' t?ulorrrl \Iclallurgc" Tsr,rln,ll),r llrl,rl- Inrvlil/u . huar~rr, it Ila% 'itlce "".morel Its ol.l moue and al)I,car. a\ Iintts a Vicar. Tits Russian journal \\ilh French title, .1 trnnb?s .h? t"ht.,IIIIIIr If - YluFinr .?1 ,Irs .lulrr.c .llrhlu.r l'rrrirrrr. "hi"t ,u 19311 changed its name to '?.1lrtl.ll,?.S lu l, ll: .f, 1'1?1inr. cir. recalls the fart that Itttssl., i,:,? al\\a\s had .1 nn,-%t iIll l.or1.111 sh:tl'c in hell' \\.'"1,1 it rodit t'tl ll .d 11 no and Ih:1t Ill I. IiI't 1,..u:, li.l,? I.I:1Ainuln ",-ills \u-rt. slt'urh in that e,~untIx 1,111 nut f,-r long Ow .LuILu' \alue ,-f a :S-ruthI.u?er. +3.aU \\urn slrur6, \\uuld no\\ hr about 114, 1 tic\er,,1 ltussiau journals 1,:,\r -;Ill wd :11 [1"I,. in tlon-Hussi:ut Lu,guag,?s at Inr1, s. and tilt- Iorclgn l:olguugc lrcu,sL,lnnls '.I tin Ial~ ?l r,.ntruts ha\e alaa~s lien au uoh":,li'?n .I. to .t \\hi"tt \\a) the 11? II0"al \\ouI \\.,s ht. \\I I Iit II\'l.~re ll1" lust \\'II. Ihr \\I-]r 111 1.11 ,11 It unt I'r"nth1: hcl,.re 1 1 . 1 L dtI'll i n t i r r n I . l n : - I I I I i l i t , - 1 o \ i r l I r i c n I I % I I I \ \ i l h 1 1 1 1 I t ? I . Ihr\ 5 \ , ? 1 ' u ' n . , ' t r n l l ~ I n l1 1,In II l01 .1 ,Ir.11 \\IIII, III.?I III.' \\.o l i t I r n ; l l s h . \\1,"n the I r,-n"h rnI -Ir,I II IIlI it. I. \\1ll lhr'??\1r1, in II. -nl 1 to lh.:its ?n 11, n h..lu t lrphgrl /1,7, lr).if l: l NL'"' f'' Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved Forlelease 2003/12/04: CIA-RDP80-00929103100040001-4 ENGELHARD meets every THERMOCOUPLE NEED ! Noble Metal Thermoe/einents and Thimbles platinum vs. platinum-rhodium -, repaired at substantial savings, ssith credit for reclaimed metal. Base Metal Thermoelements chromel vs. alumel iron its. constantan copper vs. constantan Standard Insulators All types and sizes Primary and Secondary Protection Tubes Terminal Heads and Lead Wire, etc. At Engelhard, you will find a com- plete line of thermocouples and ac- cessories to meet all requirements. The individual parts of Engelhard thermocouples are selected and as- semblcd for your specific conditions of atmosphere and temperature. You can rely on Engelhard's more than 40 years of research mod instrument- building experience to solve your temperature measurement problems. Write for complete information today. CWLU Dp ML 1130 PASSAIC AVI., !AST MIWAIK, N. J. Hu,., lwn Mr fhlurgh?al Journnl?t , St?rt.. .n p. 311 , nu-l tenentls, stunt [lit, Sosirts hots, L,sl .ill lhrtr `frit-nds- amonC Ihr \\'rslern ln.~rrs. file laths of r.at- Irnls base l+n. n iu,I plain ltuss,an. In 193,21, a sivlh j,.nrnirl d,?votr,l I.. ferrous Unrlallurgs was starir,l. ''frail ytet.r+lma'%- r1"ralskaya et- a11i,r11ipa,. Its articles were of a practical slam. oft,?n ve interesl- i net. \f o s l of the tot. l\f couse, IItleclyd the sin vifir nerds of the I?rals district. This journal di, - appeared ill lwe,?ntla?r 19411. Frouii I,rtlay's poinI of view. Isle mint important journal which Iuade its aplw?arance in the earls 1930's is "Factors Laboratory" (la,?odskaya Laboratorlyet. At- thoug11 the name thus Wert Indicate it. this is a predondnantly tnetallur- giral journal: it rotyrrs the Ilchls of analytical elu?mislrs. physkat mail mechanical testing o f metals. ms well as chemical and tn.?talturgi.?al lab. oratory apparatus. Forlunalel). this journal has survived the various Purges- although it discontinued lutblieation htiw.rn Jul) INI and December :lilt. The comical of "Factory I>b,ral.Ky" b ttraritral and. w Ill Ihr p?ssihlr exception of the Itaia?rs tin hotmc-mask Iaburstory apparatus. holds nuajderibk inter- "Fit outside Itussla today. In 1E4, howr%er. only a few rxrbaagr copies seem to tare cons, through. In 18333. a seventh juneaal for ferr,.us nk-tallurg apprarsa1 In ltlus- eow?, "Quality Steel" (kar'hratren- rraya Stall. It was attractively matte-up. ^nd carried tsleresiiag. practical, original articles that were relalivel) short and often written from fresh. if r.otirsir,ial. siew- Is'unls,dealin,; rsnlusnel> silt ullos siuts and frrrn-altos. Pers. nallti, I liked it hest beeausr roust or the palwrs were so brief and 1.. Iht? Hint. \Chen this title journal as in its sixth %ear, the h} n.,u known a\ fell and see hate the tragicomic picture of a journal whose editors were so utterly un- aware of their inilw?nding fate that in the very last issue, on the nets fast page, lhcy printed it set of in- structions on how to prep;u'e papers Intended for puhlitatiou in their journal: So much for the dricily metal- Inrgical journals. "There are many others that carry research pal..?rs on metallurgy, ehielly the physical unit ehetuicat fnlhlivations .of the Acad- emy that are shown in the illustra- tion lx?low. Slxciafized IM?riodicals in other branches of lec?hnol,!Ry also print articles of interest to metal- lurgists. For instance the field of rrfractorics is ably covered by "Ile- fraclories" ((),,nrnpory t, which was started in 'Moscow its 1933. The content of this journal is theoretical as well as practical and, as a rule, on a creditable level. Each issue contains a few papers on combus- tion engineering, but that subject has hatrly [wen taken over by the journal "Oxygen" (Kislorod). Martell in Moscow as a bimonthly, while the war was still on. in 1911. it covers all phases of the use and transportation of oxygen and, in particular, it contains research data on the use of oxygen in both the steel and nonferrous metals industries. (Continued on p. 3701 Titan %s,xwl Ju-mofs All a, Anubsr 4 Sriemnra if tie I .S.S.R. (Acruiona!y /:,xttoia ituprrs of lukvtW Y lfa4irgials, The Iittas eitalaim" we. (left) Journal of .Ipplied ( +*ti~+?' .ad Jwrarf 4 TWA" I%-I s: (arm ,) &ket awtions of the Bulletin of the -acrd.si 9f S,?ink" of afar I .S.S.R. PS-,rcal Scrim (a pop), Trdini:uol S.ve>rwe, wed ($ttwtictal &sstmee; (rigk) J,wrad I Pltaiad ISrsmistr, . cad R.-ports of the lvdem"' of `tenants yl ab I .5.S.N. Tit J.wramf I/ ExiWeiarewta! awd Theu,-twat Physics and the .3a@ Ph is gat i.Mas !dirt in" p rr tat rapirs uw, aw .n iia tr for phatugruphing. Thus 4 ale is araajs siesw .e amts an a4? "o.srl.ctilrr lint, as art dr tm ass shams,. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved Felease 2003/12/04: CIA-RDP80-009NA003100040001-4 VENTILATED ALUMINUM AWNINGS ARE finish and preserve its lustrous beauty. ? Alodinn"O ALODIZED ALUMINUM provides enduring llnlsb beauty and metal preservation. This fact, called to the atten. uen of your customers by the attractive ALODINE seal, will give your products an extra selling point. The, ALODINE seal Is available to all qualified users of ALODINE. Details on request. Modern, colorful KoolVent Awnings are designed for all-weather service in all seasons. That means these permanent, ventilated aluminum awnings must withstand the ravages of all elements and all foreign substances -- sun, rain, snow, sleet, smoke, industrial fumes, dust, dirt, salt air, soapy water - so destructive to paint life. To provide the necessary point-bonding and protective coating that meets the rigid service requirements of KoolVent Awnings, the manufacturerst of KoolVents use "Alodine" to anchor the paint 901dilzed Ke.IV.M Moral Awning Co. of Ck?knd. Clevoknd 13, Ohio KealV.M Mehl Awning Corp. a1 Anessice, Teen Dirisien, Doges, Texas KealVant Metal Awning Co. Of P.hbergh, O10-hew, Penna Keo1V.M Motel Awning Corp. of Michigan. Detroit 4. Michigan Alwkwn Awning Ca. e1 Ali. toot pheante, Arisen. KeetV.M Alawrioans Awning Co., essec wills, me. bony K..IVont Metal Awning Corp. of KeolVoM Awninyyf Llmlkd, Indiana, Pendleton, Indiana Montreal, Ovobec KoolVenl Metal Awning Corp. of Chicago. Elmwood Park 33, Illinois KoelVent Aluminum Awning, Dir. of Duralca MfT. C., Inc, Wheeling, West Virginia KoolVenl Awnings Limited, Oshawa, Ontario Eastern KoolVnt Aluminum Awni Inc., Mineola, Long Island,ng N. Y. KeeIV.nt Aluminum Awning. Ce of Arkansas, Inc., little Rock, Athensar Ko.IVen Metal Awnin Corp. of N. E., Wehlrom 34, u. KoelVent Muhl Awning Co. of P.A., Inc., MocMvrroy a C.., Inc., Hato Nov. Puerto Ric. KoolVenl of California, Inc., Los Angeles, California Pnn-Ohio KNIV.nt Metal Awn. ing Corp.. Girard, Ohio Cubak KeotVent Metal Awnin? Co, Inc., Kueak 1, New York AMERICAN C iL PAM COMPANY AMBLER, P$ Maaalauerers of MoIiiurgicd, Apieollurai and -Aarasac.ethd CMwhde .11011l Progress, Page 370 line inn .1o,.rnals S/nrfs on p. ,i:ti \Ilh.ogh flat- t-dilomll ill Metal Hrorrrvsz rnr imir slat,! 1h-s1 .taut inforulatinri is availaWc on Ilu.si:ut ntac?hining praclicc. thin' is it Ihis .inn ju11rnal deviled culirel to utachioing Prarlicc an,l thcors and it is still coming in 'frong. 'I'hc uamc of This join-ual is S(anAi i Ins(ruinenl. usually translate,) "Machine Tools and Instruments''. :dlhough "\l:n'hine Tools and Hand Tools" would probable he mutt' accurate. In earlier years, flit, level of the contributions was nulling to get excited aboul. but their quality has been visibly improving of late. 'I'lls journal publishes tht? Soviet standar,ls on 11:111,1 tool. au,l ma- cltine tools after Iht'y h:]%(- rt'eeive,l official s lieliun. 'l"he whole gauml of culling and grinding operations is covered; flier' arc also valuable papers oil chip forlnaliun. surface finish mud methods of appraising it. and rtlalctl tapirs. Each vuhuue contains a small number of papers enncerning the ntclallugraphy and lira h?catiug of luulstecls, and prole cuts of machinaliilily me dealt with. This journal pays close attention to new developments reported in .(tncrivan .NurllitiisI antt Machinery. The journals mentioned so far have been more or less thoroughly abstracted in this country. 'l'iters' exists also a whole flock of highly specialized journals relating to met- allurgy, modeled after the German hollse organs. 'l'ht? following dt.- serve mention: "Central Bureau fur Ferrous Metal s'' (laavchernicl). "Southern \lefallorgy" i t'nyurnei ?. "Urals \Ielalllirgy" ( I'rahnel i, each serving one or the so-called trusts. ?'here were also special magazines fur the blast furnaces in Sverdlovsk. the coke plants ill Kharkov, the auxiliary rolling-mill utat?hincs in Sverdlovsk, all([ so oil. WiLuther or not these magazines have survived the last war, t do not know; how- ever, two years ago there was pub- lished bs' the Stalin h\I Works it "Collection of Scicntifle-'t'echnical Papers" on ferrous metallurgy, and Ii similar syniposiunt must be cred- ited to the Ilyich Works in Mariu- pol (Southern Russia). Lesser plants have issued small minicograpfird bulletins with technical inforin.l. tion. For example. the metallurgical works in Chusovaya (Urals llis- (Conlinurd on p. 372) Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved Fo'elease 2003/12/04: CIA-RDP80-00986A003100040001-4 10L got your ALLOY STEEL ,41 Irom the same reliable source as ALLOY STEEL v-- Although perhaps best known for our special HY-TEN Alloy Steels, Wheelock, Lovejoy carries a full line of standard steels in stock for fast, dependable service from our warehouses. These stan- dard grades include: C-1117, A4615, E4617, A4620y A4140, A4142, A4145, A4150, A4340, etc. There are many advantages in using a single source for all your alloy steel needs, and Wheelock, Lovejoy offers these extra services - modern heat treating, testing and cutting, plus prompt delivery of blocks, rings, spindles and other forged shapes to your exact specifications. Call in your nearest Wheelock, Lovejoy metallur. gical expert-he represents a firm that is backed by over a century of experience in the use and applica. tion of fine steels. VL steels are metallurgically constant. This gfarantetts uniformity of chemistry, grain size, hardenability-thus el . minating costly changes in heat treating specifications. Write today for you FREE COPY of the Wheelock. tereloy Data Book, indic.tly yogi dttie and company identifi-nos. It m.tafe. caw plete technical information e. fro" opPh4. It..., Physical Properti.., testa, beat tr..ttaa, .{a 134 SNflcy Si, Caakridie 31, Misse f\ M Mefal Progress; Page 372 Itusidan .1ournals I Starts .I? p. 331, Iriet) publishes ilir "NIItI Rolle fin" INITU is sitar( tot loen?1t .t Engineers and Technician, of III, t'husovsk `l!etalltirt;iral Al least a quarter of the 19 issue, which appeared in 1916 and 1947 IS devoted to papers tin steel melt ing, 10% on the blast furnace, 95' ?n rolling. There are also ;t great many original research data for example, on vanadium slag. The- entire volume of papers contain. 103 pages with 159 illustrations. Production Figures--It is. of course, well known that no Nassian journal publishes gravimetric nr volumetric data on production for staled periods of time. Even the weekly or monthly publications of individual works or trusts never stale how many tons of pig iron of steel were produced and what the ylel4s were. About all they say i, that plant A has fallen short of, or exceeded, the production goal ttv so many per cent. In contrast to the custom of other countries, "production" at least in the years preceding the last war was, for instance, tht quantity of metal run out of a furnace without regard to its sound- ness or suitability; thus. "produc- tion" included all the scrap and rejects. At the rolling mill, "pro- duction" was what went into the mill in the form of ingots or blooms, and not what came out of it. Another example will illustrate this even better: An order had been Issued to the tractor plain in Stalingrad to produce 40 tractors per day. So day after day, 40 tractors left the sheds; maybe one of them could move out under its own power; the rest were pulled out and then finished outside the gates. Thus was the "production goal" reached! At the time when the heavy industries were started, production figures of this kind, of course, gave an entirely wrong picture of the situation. There can be no doubt that, in the years 1929 to 1933, the production figures published were not attained. In the years after 1933 until about 1937, however, the figures published were more likely to reflect actuality, and after March 1937, the opposite procedure was adopted and figures published were (Continued on p. 374) Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved Flit elease 2003/12/04: CIA-RDP80-0092SA003100040001-4 BLAZECRETE Hydraulic-setting REFRACTORIES 0 Tlase 2 Flew refr(tories, with the filtaws U fluecfele, corer the range of Mdostrial relwkomosts for t,Iw faraace construction and many meMlenana asst. To team up with the highly successful 3X IILAZECRFTE Johns-Manville has developed these 2 new refractories with many similar characteristics but designed for lower temperature applications. Like X Illaiccrcte they tiro, can he flipped into place and troweled smooth without ramming or tamping ... or can he gunned. ILAZKRETE (11024111F 11) For building and repairing old refractory linings. Makes brick work repair easier and less costly than using "Plas- tics." For use by boiler manufacturers to replace fire clay tile in wall construction. Does not require prefiring. 2 4 .' BLAZECRETE ("OF) A low conductivity refractory concrete for use in building new linings and repairing old. Its light weight makes it adaptable and economical for many applications. 3X BLAZECRETE (ax..) Unusually effective for heavy patching. especially where brickwork is spalled or deeply eroded. Excellent for re- pairing forge furnace linings, burner blocks and lining ladles in ferrous and non-ferrous foundries. Blaiecrete products harden after only 6 hours of air curing ... can then he fired or left standing indefinitely. Come dry in 1o0-lh. bags. Unmixed portions can he stored for future use. ? I i 111! s 111 s 11'' t IN t s i s 1 *1 Metal Progress; Page 371 f u?1slan Journals ,.tihrrt.' on 1-. 33/ l..mcr Ihon Ih...r arlualls rra.'hr.l. In till- stnuntt?r of 1!111. the Grr i n:111 11 i g I I ('..mma 1111 rtlt.rsrd .1 ref mint( bunk in which Ihr l-a parils .f Ihr ltusst:(t indtn.II% vas dt 1ai1(d fur Ihr IIilrrcitI I Iranrhr.. shore w(rc data on the rapacity of file fnrneres. the plants. fhc nuruhrr of syurkcrs, and so on. This book had bl-cn compiled kill the basis of such dale as had Into pnhlishrd prcviousis in the Russian terhnit?al literalore. When German espert, entered Ihtssia in the wake of Iht- Grrmau armies (and this inforin.r lion comes front one of loose c?s perk) III,.) found Ihal. in aetuaiit, production was considerably ltiylov than indicated in their reference hook and that the poIcntials t?aleu lased on the basis of their list, sere wrong. Another example of Ili( elcnnrnl of surprise and mystery convents ss ire-drawing this. On Nov. '_$. 1!111. a German committee on wire drawing was in session and Dar cording to the minutes) it devel oped that Russia had placed an order for nttiltiple wire-drawing n.achities lu he operated at such high speeds that the well-known Krupp \\'idia dies used in them simply- could not stand the pace. The Russian purchasing cunnlis- sion. however, was not sitrIn'ised at all and hinted that nuaybu the\ had the right die material and. at rate, they would accept Ihr any machines. To this day. no pusitivu inforutation kin the new die oiaty- rial has leaked out, so far as I am aware. The peculiar reciprocity of the Soviet Government in the patent situation niav he cited also. Our Patent Office library in Washington has not received full Russian pal- cot specifications issued in recent years; all it has are brief abstracts of these specifications. On the other hand, anyone here may secure full ((pies of our own patent spec ill- rations at a nominal fee and n. questions asked. .Its far as is known to rue. there has been no considerable expansion in the Russian nu-lallurgieal liter:- lure within the past two or three years. such as has taken place in other countries -- for instance. Ger- (Continaed on p. 376) Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved FoIMKelease 2003/12/04: CIA-RDP80-0092W03100040001-4 YOU WILL FIND IT VALUABLE FOR READY REFERENCE lialrtiMan .loath) for 1tria11urg , Starts .n p. ?1.t1 arms. Tnpinnd. lustrilia. Spain and litan11. I1.,wt?str, the 111J.'41 11% -?f the Irit,rr+. wJtich tun }cars am" still was quite st?.tty, has improved. Stalcnn?nts .f an author that arc it SLI 5,rfr,l boo fartu.l data. and +h,.rtrontiptts in csperimcntal lr,.it .lure, are now in for a reprimand. in the farm fit an ertil?.F's note. The acquisili,.n ..f ihrssian joint nals so far as thus are .,bi:anabfe has twen simptificd. There is imh sine channel: The Four t:..ntinc?nt Il....k I;,rp.. 3A West Milli SI.. \t M 1?rk 19. wh.,se mos) recent Just .d asailalde periodicals carries 2971 Hurts. including nnmrr..as pr.q,a ianda indiums tTbr lissooft-r. Cold lure and Life. !Susirt Sport. S..tirl \rt. Labor. Pnrlrtent? of Hisbrs. The Peasant Wc,man. Tlw Y. sag Iti,lshes ik. ('n.coslikt. It also car uies an "Imp..rtant Ni4icr "listing 22 iout oils that are `nrrnsbsrribrd and not asailahk for 119W. Sod 1.o retch. "Fact.rs I.ah..rat,.rs" assil "Journal of Technical Phssks" were glared in the owrrsriscribrd rdr aor) atr..u t the lino ML/ell Pr.,dtrsa was running its Jsnr isssr with Ilussiau abstracts Glass ihusr two journals. Anil what will hal.prn it %sta try to break through $hr run rotor lain to serum irehniral litrt4siit dirrcllr flout ondividuAto'? flit-for too lily slur) : .1b.-td three 'rats arr. the address of use C uottrarllr %. research engineer at as Institute in the I rats region app.?arrd in the )alters Its they Editor euhttan of an American werhi . C..mradr % seemed eager for forriga alum and hence a good Candidate to, exchange Journals with, to I Is". gested trade to him and aefuall) received a p.,sIcard espreaaing his interest in the proposal and pawn ising to Iti,k Into the l.ossibililirs of obtaining back issues tot certain journals for me. Then, after a few months. I was asked. not by (:ant- rade X. bill by a Detroit flrm, would I kindly pay theta the will of 127.50 covering a book on spectrographic analysis plus five standard samples to go with it, an that they could forward the book and samples to Comrade X. In the meantime, I had received from Coutrade X three copies (fine of them useless) of a (Continued on p. 378) 40 h 11 No !fir ! This brochure, file catalogue size x'/i x 1I', contains needful facts and information on Brinell hard- ness, ductility, compression, ten- sile, transverse and hydrostatic testing machines and prosing rings. Also information on special testing equipment. You may at some time want to have quick in- formation on physical testing equip- ment and this catalogue in your files makes such information ayail- able to you immediately. Without obligation send me your brochure on testing Instruments. Also special folders on following types (check your Interest): ^ Brinell Hardness E] Ducloll"fir ^ compression ^ Ten.lle ^ Transverse ^ Hydra.t.ne ^ hevln. alms nnt_ Attach coupon to your letterhead and mall Metal Progress; Page 376 I a: WW! rte' iisM? 1 m.a.ar* R> bwb i/t 4~ inrrpa+rs dig life f,,r tt.m-kh.ed Drop Forge by eliminating wrfarrd6dtni,i emery cleaning at rod of ions. Hand poli hing i- rut to a sailsolauslis beratsr it's goon. M 4,r, heat tr.?ating. Hytirxrfinish rime's., all Mt-true wale. hoists tolerant and bases airfare wa anther than han,i pokisAfng. t:wtimate+ .hoar lly,lr.- hWill pay for itself out of :,axing, is two to three year,. M~1 aimplit'w, manufacture sad seaistanamr .d bads, di.'. and tsted.k. Costly hand work is rrsiu,?.si and imitates are virtually free trim dirvstiusal grinding line-,. Ilydr,.- Fini-.h assurer better bonding, elev- tnspisting, painting gives you the ear/ere p.s trait within .0001" Ift AMi M tlitlblf on how llydro Flaiyh can save you money, write to- day for Bulletin 1400A to: PASt.:tumN C'irnrs*ATloS, IPOO Panghsrn Blvd.. Hagrr+town, Maryland. LAST CLEANS CHEAPER I wlth Phi right squlpwant far awry jab Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved F61-Kelease 2003/12/04: CIA-RDP80-0092WO03100040001-4 CONTINUOUS ROTARY HEAT TREATINQ FURMACE$ For clean harOcning, annealing, normalizing, carhuriting. Ni.Ci t.ing. etc., of many small parts. The self-metering feed hopper arrangement permits the operator to pre-load a one-hall hour charge of work which is then continuousl7 and uniformly processed without further attention, therehy eliminating costly man-hours. If desired, a continuous feeding mechanism may he employ rd nhich completely eliminates the need for an operator. Write for dallelia 101.4 today. AMERICAN GAS FURNACE CO. 1002 UFAYETTE ST., EUZAIETN 4, N. 1. A Little Does a Lot GCC CERIUM METAL (Ml.chmetal) added in small quantities to many Fer- rous and Non-Ferrous Metals improves the metallurgical and mechanical proper. ties of the end products. Discover how a little does a lot by writing for our informative bulletins. GCC -!fetal Progress; ["age 378 Ilust?dan .lournnls for Meallurg Starts .it p. aa! j ,urn:,! 1 t\:ntted. it I Slit! the t,u,nrv .After Iltnt.'.hence Ifrsceuded and flint' NN as no otss\er to nn pleas Ihal Mince b;ttlls .oiled ntaga /inc copies \.crc really Ie.s thatt I hit e\pcrlcd to ;;o for i27.:,tN, I do not know if Cottatle X is to hlaun? probably he i. not. hceause rcgul;ttjons 5s ere just thou issued gocrrning relations hctwecn this si:tns and non-Itussi:nt., and pos .ihlc Comrade X did not want to he transferred front his comfortable post in Sverdlovsk to less cheerful surroundings in Siberia. I shall t?om?htdc this eolmntNary ssjth an evaluation of the position of Russian metallurgical literature wht-n compared with that of other countries. Thirteen years ago. Dr. If. F. Mehl of Carnegie Tech made a care-fnl survey of the nuntht-r of rescarch articles in the nu?tallurgiiai ltrld which had appeared in prat lic;tli all the acientifr literature of the world in the preceding tw, yrars.* In compiling the number of articles front the various cuun tries. he fount that the quantities produced had file following relation: Gernr,uiv 7 United States 4 England 2 Russia 2 France I Japan I Ill. added that if quality of flit- articles were considered, the United States would be unlikely to improve its position. If someone were asked to repeat Ihis performance for today's metal- htrgical literature, lie might arrive al the following numbers: United States 7 England 3 Germam? 3 Itussia `.~ Any such comparisons are apt to he challenged and I will gladly bow to challenges based on actual count. There is no doubt, however, that in the 1937 evaluation, Russia would have received a better rating if the Russian journals had been more fully and adequately abstracted at that time. Today, we simply do not know. The iron curtain is drawn lot light. O *National Resources Committee. 1937, paper on Technical Trends and National Policy, p. 364, Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 111101 %W Ilu? ptrnrh. (in surli a I.unrh (he gap ruuld be '_ in. hrtssren punch and snppurling pressure Iclale Jul fuming 0.112:,-in. Ihirl, steel. This gap ran 1' ,? 111er?eased t., : in. 1f Ihr gap, is inrn?aNell I,- 0U:,1I in. The gap can hr in. nith nAQ.-I-in ahnuinunl. and 's in. sitk n.050-in. aluminum. In eunrlusi.,n it Ina~? he said that results so far hate been most saiisfarlorr. Representative parts that ssouhi require at teas) I., ruin. bench stork can n,%% he made \silhout cuts' attention by Ihr "lap-tap" dc?p:lrlment. The largest blank we have (?ruled sn far i s sloop 2`1 s a1 i n . . h u t the L 0 .,nlv limitation in this respect IN the site of the equipment availahh?. .lathier p.?ssibility. as Net n..t well rspl,.red, is the 1',1rnrin; anal sinlnltane,in, shearing in am. direction. S.. much interest has been shown in lhr pr,u rss by engineers ihn?ugh- oul Ilse metallurgical industries Ienerallc, that Ifcdropress. III(-., has bead licensed to nlanofacture the equipment for general use in h%draulit' tirescc. 11'c are inclined to believe that rueehanieal presses might also be used. if the press is powerful enough and if the jasv opening is sufliriently wide to mount an auxiliary Marfornl unit. A The Organization of Iron and Steel Research in Russia The following statements ore organization (if ferrous metallurgical research in the 1 .S. S.II. are quoted from an article by G. 1)ellxiri in Revue ill- lletallurgie for I pril 1949. This extract is fndlotted hr editorial remarks concern- ing the publieution of Russian metallurgical papers. Ileginning on p. ; 98 tiro p inted e.rferrded abstracts of rite recent articles from Russian technical journals. Of particular interest is the description of a magnetic method of determining the hartlenabilit>,' of steel (p. 1116), a method ichieh. properly calibrated, would scorn to /rate seteral advantages over the nudely used end quench test. Also abstracted are papers on maltiple-arc eve/ding of thin sheet metal (p. 808), effect of grain size on the high-temperature strength of ausienitie alloys (p. 798), tests for largtability (p. 838), and effect of alloying elements on the hardness of ferrite (p. 802). BEFORl. 11114 scientific metallurgical research was carried on in the laboratories of advanced technical schools, the universities, large factories and large arsenals. Metallurgy was taught in the School of Mines of St. Petersburg, founded in 1773. The Polytechnic School of St, Petersburg had a program analogous to the French Polytechnic School. At the School for Roads and Bridges, founded in 1810, there was a center for testing materials. A large central testing laboratory was also started before 1914, and one of its branches Was directed by the oceanographic scholar, N. i(claiew. Other institutions such as the Upper Technical School, of which Uimitri Tchernoff (1839-1921) was a product, and the Polytechnic Institute of Lesnoye should not be forgotten. Scientific research in general and metatlographic science in particular were in full swing by 1914. After the war of 1914-18 and the civil war that followed, the Soviet government reorganized teach- ing and research and founded a considerable num- ber of advanced technical schools and research institutes all over the U.S.S.R. At the present time the number of these institutions and large indus- trial laboratories is more than one thousand. The institutes can be separated into four groups: the -"eta' Progress; Page 772 Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved Fol-R- a lease 2003/12/04: CIA-RDP80-0092&4 03100040001-4 Academy of Sciences, ailsanced schools, instilult-s of (properly speaking research, and lahoralorit's of industrial research. The Academy of Science boasts institutes which are among the best 'quipped in the world, notably an Iron Institute, in Moscow, with a branch in the Urals. Its budget is iiireetIy approved by the Council of Ministers and its presi- dent is one of the Council of ministers of the U.S.S.R. The Governtuent entrusts the Academy of Sciences with basic work most Iniportant it) tilt- national interest, and the Academy controls in principle all research undertaken in the U.S.S.R. The Soviet universities generally do not con- cern themselves touch with iron; however, some ten of the advanced technical schools include fer- rous metallurgical instruction and research. These researches are financed by the ministry supporting the school or by an industrial group, but the gen- eral program unlst Ix' submitted to the approval of the Ministry of Fwlucalion which controls all schools, even those depending on other ministries. Each ministry has its own institutes of research. The Iron' Ministry has eight inslitules. The main one is in Moscow; other well-equipped ones are at Sverdlosk in the Urals, at Slalinsk in western Siberia, and at I) iiiepropetrovsk. Researchers are allowed to use the results of their work to obtain university degrees. A thesis for (he degree of "candidate" requires about two years of experimental work: a thesis for the doctorate of science about five years. Along with a university degree, particularly that of doctor of science, gox?s an appreciable increase in salary auid other mate- rial advantages. Most of the work undertaken is due tlp the initialise of tile researchers, but in order to rc 'eise the necessary financial suppurl they ntltst furnish a detailed plan, state precisely the goal to IK' attuned and promise completion of their project in a rather short time. %N-hen laboratory work is lot he extended to induary, the rrse:u'rhrr is 11.11 ally given supervision and esett the ext-cution tit factory tests, or rxprrinu nls in tilt- semi-industrial pilot plants attached Io the institilles. Soviet Metallurgical Publications ARussi;ul tt?xlbook '''Mrtallosedrnir , hs .1..\. Itoelit ui l rnnt:lins :ul :Ipprndix esal- ualing tilt- metallurgical) pnhlicatitln% of .Arias[. iunntl?It?s. The Loath principal 1111.,1:111 J"nrlials ark. gisen them as: .Shit Steel Tsve/111r Ilrl,rllrl \onfrrrus 1letais 1-i,c.,liila St i, tint 1?i:ikli,- lrinrich(.'/. O o .I rrtrli:n ? li1111riiii of the Ih:nich of I'hssico-1'hcnlica1 A1l;11y,1'. .:Intl 11111rtt'll Teckluli- r/rrskoi 1?'i.iki i.lournal of "frrhniral 1'hssicsl. ihily the last of (hest' is rk.rri%ell aid abstracted regal:n'ly in the t"niled Stairs. Papers of nlcl;dlur?gic?aI intcresl ;jr, by no means limited to the four principal nu?diunls. Sesettleen Russian journals are annolaled in tilt- ".I-S.M. Review of Metal Literature", and in 1PtK tilt- Review carried referi'n,ts to 12:1 Russian arli- eles, of which 70'; were in the following lour categories: Analysis and Trstinj :n:'. Joining (chiefly are welding) 15 Properties of Metals 11 I:onstillllion of .11II,ys S ']'his distribution of subjects should not lov regarded as typical of metallurgical acticily in the S4uviet 1'nion. It is more likely an indication of the lylx' of literature considered c?stortahle. Also. the preponderance of art jute's tin mechanical and chemical testing is due rhietly to tilt- large mnn1K?r of short articles appearing in tine' journal, Z,trotl- akayn Ltthortttoriyn (Factory Labetraloryl. I'alx?rs about foundry operations, for instance. :ire Miss- ing: and scant information is :tsailablt? on nlat?hin- ing practice, all hough the annual prtKlurli.in of machine tools in the 1 .S.S.I1. has IN?cn relntrted as increasing from ;-.0100 units in 11139 to I,300,0INt planned for 1950. Ten of the 17 liussiail journals eoserecl by tilt- A.S.M. Iteciew are issued b% the Acade?uly of St?i dices of (lie U.S.S.R., which pulllishns a Iting list of 111111r111r., Jotrrnuls and Reports. One tints in the .Academy publications a great satiety of neelat- Illrgical information all the wa.% front electron detasily of alloys Ill such unacademic snbjcels :1, the heterogeneity of steel ingots .11141 the preheating oLiiiel in a shaft furnace. {There is also :mother type tat article which a11K?ars ,K?rasion:ells nuclei the slamLlrilizedl Lille. "The Priority of ilnssiau St?ienee 1Cilll {tes1N?ct to h it, tw ledge 1 'iic ct'It11, . . .- Itegarollev, oil tilt, accuses of any particular claiul It, pnorily. the Itussian alt?tallurgisis tire currently turning out %olnr inlp?rtant rest-arrll. .\[ucriean chemists I1:Rr recetgltirctl the salve cut Itussian chemical liters lure, as imlicaletl by the fart that twu Itussian rhenlieal jonrll:lls are [Wing rrpnblislletl lute In I:ngllsll and stied ,tit a subsetildintl least, (?r 111 and -'91i yearly. .t, sinlilarl} conlprcht 1lsisr llr?1- tet for translating and republishing uletaII1Jc9i al p;lprrs may or 'la) not be -easlhle, but the 1u14'r1- an?tallur;;ist shouttl n-4 blind himself to a last Mid .acted :un?uul of rk.st?areh and destloplnent bring carried -it till-1191)?ul Eurasia. I'k.rtls:t .,I till- rise t' tt tined al-tract, he;;lnnlnr ?n it. 7tii ?l tills issue will gist tht rr:ulrr s ,un intlrt?;Iln,n ?I till- txlu' ul rl-st':IIl-l1 ltrlll:. 1rlnrll-,I. a Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved ForVlease 2003/12/04: CIA-RDP80-00926W3100040001-4 I. R. S. I. D. (INSTITUT DE RECHERCHES DE LA SIDERURGIE) L'organisation de la Recherche Siderurgique en France et a I'Etranger' par G. DELBART L.a recherche dens l'industne nderurgsque a rte Ion- tap k fait de savants looks. simplement curieui de dkouvrir lee virith caches de Ia nature. ou d'ingenieurs audaeieux decides a pousser jusqu'au bout Ia realisation de lours idres. La pionniers de la recherche partirent i l'aventure en tern inconnue; ifs posirent des jalons sur lee routes qu'ils parcottrurenl. d'autres let suivtrent qw exploitirrnt les "to de lours decouvertes. L'individuahsae etait aours chore naturelle, ii avail sa grandeur. Sit rtait possible clans le passe a" l'mdividu anima' on une idee-force ou un ideal. d'agir soul am des taa0ens prEcaires. it lui devient de plus en plus dificile dam ks temps presents de progresser scut. La pat able terrains vierges sort au moms partiellement cUfriches. dais leun parties lee plus accessihks. ii Taut -parfaire te defrichement ou mettre en exploitation des term nou- velIm : ceci demande du materiel. des equipef Sans dome. lee grandes decouvertes sero t-elles encore souvent atxosnpbes par des homme4 de genie. mail leer noise en ap cation eat deli k fait de colkctivites. Les pteuves t~a lks soot Ii, et now ne reprendrons pas Iea discus- woos philosophiques sur Ia question de avo4 9'11 Taut as we organiser Is recherche. I. tnlportante du developpement de Is recherche dais we itadustrie psrticuliere devrait normakmesd attic to rela- taot avec 1arttportance de crate derniere. \'oats, polo 6 alt es 1838 et 1947. 1a ptoducttat annurlk. to nal- '*'l.aateeru- t~,~e to 4taa ek !? C1~.- tt 11S aaa s MW Irons dr tonnes d'acaer. giques des prmcipaks nation, sidOrus- Etat?-Unrs d'Amrrique 28 U.R.S.ti. 18 Grande- 11 r4 'agne 10.5 Alkmagne 20 France 6.2 Belgique 2.$ Italic I-checoslovaqure 1.7 Cawda 0.7 Luxes xariz 1.4 Swede 0,407 Ind" A wtra t japo E .sphe agui ' 1' Ea 1446. ft,'- 1.2 b.4 0.44 1947 %% 19 12.7 2.741) 2.9 1.7 2.2 1.9 1.7 1.2 1.2 1.2 0.9 0.57 -r - Comnatrst Is recherche saderuripyue est.elle orjanascr 4aan ces dtfetentes nations) C'est ce que sew= essaseran? de ttsantrer I la luraere d'tnse documentation sat putwr dement daats In pays vaates. soai tires mdrrrcteraesit d"spformations venues des pays lointanu. Lrs d?cwtsents raswrtebks sogt dasparate, en gssahse et en quasWe. )e ks at eonlrole+ uu fad conttokr but place claque fois gut Is chose a iii po"able. dSwi e+ COPOWAN cupvaancu gaa'th pnm etle des ta< won ft ttrtstflirances. et ?'ea encase Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For lease 2003/12/04: CIA-RDP80-009265 03100040001-4 I..r let hrr, hr indu?ttrr:lr eux I_lal,-l ni, r?!' h,rtrhrenr .1 %c-!.,l l.rr enlir 1920 rl 1940 (fill l ), ci ,~ . I cmrnt r suhr one tmpulu.n tc.nstdttal.Ir iu ,,jut, ti I clrrntcrc vurnc mc,ndialr. I, Dan, un pays aunt sale. Ia contrnltatt~?n Jr [ techcrchr a I'etlrrlon national lout paraitre dlfItllr. mat' de tours niamcrrs, le regime hf?etal (Jul % ream rt l'rxisirnte dr group.-, industnris lurssants sehprrIaorni 1ucn a la drtentrahsatwn. t 'rst to clue I'on oltsfnr lot tits on examine la siruc turn dr, organrsmes de ret h??rt he- t?eux-ci sent d'orrgrnrs differrntes. Ili, dEpendcnt n.-tam merit : I dt- Ia pi,+lresi''n - sidrrurlrre ri industries n,r. nnlurs; 2 des indushiir, nrrtsllurltr(jurs apl,arenlrrs nr,krl tool)bdine, ,anadwm; 3 des unisersitis; 4 des organisnes nationaux; 5 - des laboratoires de reclerches prnrs. 11 n'existe pas. a propremcnt parlor, d'Institut :'ratr?.- nal de Recherches Stderurgiqurs. I La profession est, de- loin. crlle qui entretirnl le mirux la recherche sidirurgique. Celir-ci est surtout pratiquer Bans ks laboratoires des societe's imjrortante, comme l'United States Steel Corporation, la B thlerm Steel Corp.. Ia Republic Steil Corp.. I'Lnion Carbide. l'lnland Steel, l'Alleghany Ludlum Steel... Ces Societis qui mainlienneni normalement un contat t itroit aver les Lniyersites, possedent en geniral un labo- ratoire de controle dans chacune de kuis usines et un laboratoire? central plus spiciakment charge des rechei- ches. Liles consacreni a la recherche des sommes im;or- tantes (fig. 1). qui ont etc considerablement augmenters depuis le debut de Is derniere guerre mondiak. Par exemple, I'L'nited States Steel Corp. A un ilat-major d' 3.000 inginieurs de recherches; son laboratoire central est 5 Kearny (New-Jersey) ; 11 est dirigi par le D- J.-13. Austin, et s'occupe principalement de recherches de base. Parmi ks filiaks dr I'U.S. Steel Corp., la Carnegie Illinois Steel Corp. de Pittsburg lrosudr un laboratoire central qui fait un teu de travail de base, mais s'occulrr surtout des prulrlkmes d'etamage et de galvanisation; Ia National Tube C- itudie i Pittsburgh ks problemes rela- tifs a sa spicialite. el I'American Steel and Fire C itudie a Cleveland i'itirage des fils et des ressorts, L'U.S. Steel Corp. a igakment fondi, en 1947, i Duluth (Minnesota). un laboratoire tres important lour le traite- ment des minerals. L'industrir automobile et Jr constructions meraniques fail des recherches Clans le domaine plus limiti de la metallurgic-physique : proprietes des mitaux et traite- ments thernuques. 2- Des Societe: alliees 1 la Siderurr;ie, comme !'International Nickel C . la Climax Molybde- ETITS-U N IS t3'AMERIQUE \n;, i,, i. it nutm l . I.. \ in rcltum i it iahx,rat+arr. tvi?sants qui elutts?nt '. , .,, ,r, ? e- Jan' l:t mesure tw ceux-ci sent su i:- \la sr i Dans tea Universites, IA1e 9 tout naturrlirmrnt one pl s. r 1.11? pcefn et l4 a recherche tin-liquee n?rn rst t,.i? pour sria up, en lsartrtnun Ins recherche. tnlett,..tnt :a Jet.-r., nale I,.-Ur Irs.luellrs sr, organsme. ,r.,a..'nr t., ??I de, .jrdrt> trnlwttaM, Jr I'ITta1 l .r, )alxtr.rtour, 'l,et tshses Jr. I. nn,,,.t,. ..-. rQalement tk l'Indusittr Jr, e,?rrt,at, Jr ,r.hrosw I't . ontrat, 1 lou}.wrs hrntirs en hind., . I cii s.yo tti lots trade, pat l'rntriniedrarrr tle? .t???a..tlnm, let* "ns ealnlaux. tummy I'Amen,,ur .1~,rh I,r l lfatrrr.rls (A.S.j. 1.). t'-\nrrrrt.tn \ ridtna _ lorsqu'r1 s'agtt Jr rrc-lwrt he' tntere..,tnt ! rn.rnrf.l, 4_ I-rofession t # } ' f I t + t ? t t* t t t 7 t r , t t { tt}} i * , ! :- ti I il l I l +! #t FT-1 I T I Ili t Napoli racy r*W 0111 ,q- I. - I)_prnxs en Ju1l.u, rrsher,lrtc Jun? rindu,Mie Je Ftut,-l ni? 1'e-.-. or wraMt ? .U. .'.Iuu:in : La re.hrrchr teshnrqu. , re- sin M. nile cn Some it uui Elate t'ni,, mat 1947 Les Universites trchnologntut?. nr?r,ttirnt urn- tra611R- a se speecialiser sort Bans la metallurcte Iunuque O t:himie des metaux i 1'etat liquid.-), .it dress la abiP lurgie physique (etude des dlagramnrt?s d'cgwlibrr 1'4U solide et des proprietis des metaux) . Les Unisersites les plus mrprrtanlr, Ju pots Jr de la metallurgic chimique s?nt ituer' dens I'Eat- C' sont : a) Le Massachusetts Institute- of I-rrhnokgy. a Oil' ton (c'est III plus imlortante dr? rcole, prolyMda amiricaines; elle etudie. notamment, le, problem" 6 traitement des nunerais dr (Cr sous (a direction du 1" fesseur Gaudin) ; Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved ForVIease 2003/12/04: CIA-RDP80-0092603100040001-4 L'ORGA\'1SATION DE I.A RECHERCHE Slt)LRL'RGIQCE EK FRst\CE FT A t.'ETRA\GER Is) le Carnegie Institute of Technology. i Pittsburgh; t Ia Purdue University. L'enseiWment de la me tallurgie physique est donne s spfeiakment a : -- J'Institute of the Study of Metals (de I'Umversite de Chica o) . i Notre-Dame University.; h la Purdue University ; i1 l'Universitc de Californie. is Berkeley; -- et aussi au Carnegie Institute of Technology. On trouve ttgalement des laboratoires de metallurgic Bans Ies autres Universites, mais les laboratoires de recherche. soot moms importants. Au California Institute of Technology. of l'on forme ##tout des ingenieurs-mecanieiens. un sours sur la phy- sique des metaux est enseigne. Ces Universites maintiennent aver I'lndustrie. pour la- tlk elks travaillent i?galement, un contact permanent, et dtsposent souvent de credits imixtrtants. Par exempk. l'UniversitC de Michigan dciense pour la recherche envi- acn 20 millions de dollars par an. dont 200.000 dol- lars pour la metallurgie. Les chercheurs dcbutants gagnent, dans les Universites, environ 250 dollars par mots; lour salaire dans l'indus- trie serait de 25 a 50 r plus Cleve. Les chercheurs accomplis peuvent atteindre 450 i 500 dollars. Le cadre drs I;rofesseurs comprend. dans l'ordre croissant de la hiirarchie, le% Assistant Professors .t, lea tt Associate Professors ,,. (es Full Professors ; ces derniers recoi- vent un traitemeni do 600 a 700 dollars maximum, tan- tis qu'un chef dr service de I'industrie gagne en moyenne 800 is 1.000 dollars et parfois mime 1.200 a 1.500. Mais le professeur ajoute generakment i son trailemenl officiel des honoraires de conseiller technique. La lot de l'offre et do la demands joue d'ailleurs ferocement et it eat frequent qu'un tourneyr gagne plus qu'un ingcnieur et tan souffleur de verre pld, riu'un professeur d'unisersite: 4'' Dan' les organismes nationaux, 1' .. Office of Scientific Resarch and Development' ? financait pen. slant la guerre des recherche, inieressant surtout Ia di- (raw nationals. Celle'-ci etaient faitc"S Bans des labora- taires prises, dens les Universites. dans la division metal- liique du Bureau of Standards ou au Bureau of Mines. tuns deux organismes d'F-t.rt. Le Bureau of Standards rst. somnu n1 nuns I'indiquc. specialise daps Ies questions d'etak*agr 4`1 & mesures, mail possi de E?galement un d=parteane4t de me tallurilie pour Ies recherclics trlatisrs .salt met t. Le Bureau of Misses a pour missives la muse en vakur dr: iessourccs naturclk' du pays. Son activists est iris decentrahser et Ies contrats qu'st passe avec l'Indus- trte et Ies L nl%ersttis sent d'une .spplicatu.rs trigs soupk. Le Bureau of Mine, ne fait pas de recberches sur Ia plIytique des metaux, m.11+ s'ai>fslique particuherernent i l'tttde de Ia ttansiormalurn des minerals et metaux. 11 potatde de nombreuses station' rw Pen etudic Ir mineral. tidrurgiqucs, en oart_irulier calks de Minneapahs. de Salt Lak: City, d lustalsso'a. de Boulder City. the College Park. Il possede egakment des deisartrmews I metallurgic et d'ekctro-metallurgie; en part,culsea. Ii travasix tres important sue la thermochinue 'oat poursm- sss depuis sk nombreuses aunties a la station dr t eAirk>. en Californie. L'U.S. Navy inane, de son site. des recls.-rthr' interessant la defense nationak. Enin. la Commission de l'Energse :\tomique tall exe- cuter pow we temple des recherches sun les mrtaux resi- tant aux t atures ekvees. 5- Aux entry de recherche. industrreis nationauu et universitaires viennent s'ajouter des Instituts de recherches privtiis i but lucratif eve non. Les resul- tat}des recherches confiCes a ces Instituts alvpartwarwnt generakment i I'industriel qui a pose le probkme. et ne sont alors pas publics. Les plus importants d'entrr cut. du paint ds %u tie iurgique. sort --- k Battelle Memorial Institute; - le Mellon Institute of Industrial Research. - I'Armour Research Foundation viennent ensuite : - le Midwest Research Institute. - le Southern Research Institute; - le Southwest Research Institute; - le Standaodd Research Institute ((ahf(Irnta rt Pacific North West). Le Battelle Memorial Institute (Colonrbu, Ohio) est une institution fondue en 1929. par un don de Gordon Battelle. C'est un laboratsure prive. travail. lant sans benefice et installs dan, de trts beaux bats- menls avec un equipement achete et renouvelk griicr aut revenus du don. Les detenses Jr. recherches fasces en 1947 ont atteint 4.250.000 dollars. soil ensiron 25 ' I-our Ia metallurgic. Plus de 250 recherches y etatent en touts. la nremr annul. dont 60 r financees par l'industlte ct 40 '. rar it Gouvernement. Le personnel cit passe de tibia. au I" ianvier 1947. a 1.028 au I deseibte t'1147; 60 '-; sort des technicians. 40 ', wvartictin nt aux t?ersoanels administratif et suxiliatre Le Mellon Institute of Industrial Research r its fonds en 1906. d'.i1 s un programme riahb par Ir D? Rt&rt Kennedy I rncan. ftui perrnettatt d'apiaiuster des .Aellosss faisant des rethrrchrs clan. Ic, l nsset- sNes r tea inderstriels. Iusriu'rn 1927. l'laernit hi l artie I I'l,'nisersitr de Pittsburgh. I )epws tors. it e.i dirige un slat-major responsible rmers k C.'nanl. OAF l'intermediaire du l)trerteur. 1.'Inslitrrt s os parr aver I'l..'niversite de Pittsburth et se, nsembrr' prusent I pas- ser lours examen,. mats le, .. fellows . du \lell.xs (nsit Lute not le status dr' travarlleurs satarr' En 1947. k-r dipense, pour Ia rev hrr, be tore M spplt- (juee se montarent a 2.697.982 d,dlars. (.c perwmrtet r,exnrsrenalt Ni ? kilu%%, hr+t Anaunte21i) aide, En 1947. 8() txoaets Jr tuts. etaxnt err sours. dont 6 drlatts trentr an, et plu?. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved FQ&Release 2003/12/04: CIA-RDP80-0092OA003100040001-4 a .A t,Nt inaluattir rS .e rsr Un 1&h* tAt.41f Jr tea twit ,frsrlty trrirsPW drs rrassntl. ra +~Irdtflr-\\ est ( )n t tall lieu tsp. rrra/? .UUTt,w1 a-1it.-- met an"jur Atillt(iti r .y ',., r, tertt'rt?i tttutrilr. , -. t tt.' + A!v t... Lr !, Southern Research Institute. fr en 11)41 rt utrnk. e mtntth.im (Ai.thatnt) t/,n })__ ' ) rtrtr' and l?, iniriris Jr. ?.?ttlm inalit4lrr nt.lammrnt SAn' twhlN.$ion Jr. irault.tit I.e. delat n,e' dr ir, herifirs ?.- ..?nt c..t.- . `~. a plus dr 4 l f)(H) sf.,llars. 41) rt,Nfr? rte ..air.... ..: r'. Yierr r"'-. l' ?.tu- Mir I :jr - - l irre du nirmaur dr %1 1f-- La rrchrrrh; hmqur son e'g..n.?.rrr..n t. en ~ .. 't". flai- l nib- ma, 19471. drputs btngt-tlnq ans. if debuts qulnl,- an* et Ic) dr puffs dix ans (fig. 2). Cct Instltul fail des rrciritlies di- t himie et do chimir-physique iwirt L'Armour Research Foundation of the Ins- titute of Technology a ere funds a Chicago en 1936. Cest une Societe parliculiirr, bun qu'lle dcpende rn Bartle du President el du Conseil d'administration de 11llinois Institute of Technology. I3epuis sa fondation, cette organisation it entt rcmrnt par r11r-in me. rntrete nant son liersonnel et son equiprmrnt. En 1947, ies recherches subsenlionnt=ra par l'industnr et le Gou%ernement se writ montees a 2.551.854 dol- lars. Sur 105 pro)ets de recherchcs en tours au I- set} timbre 1947. 39 ctaient subventionnc' par le Gounei- nement it 66 par l'lndustrie. l.a Fondation comprend trots division' - 1 la division des recherches; 2 la division des mesures magncttques; 3' la division des recherche' Internationale'. Celle derni re division a etc organisce reremment lxtur faire dr, recherches pour lea gouvernrments el le- mdu' inrls strangers; cite a son stegr a Mexico Cite La division des recherche' comprend des dcpartement dr Ph -itique. Chimic et Industries Clumiqurs. Alstaux. Ceramiqucs et Produits minsraux. Elcctricitc. Metaniqur apnliquce, Industries mscaniques. L.r personnel stair de 488 personnes au I ' septemhre 1947, dont 322 savants et techniciens. Parmi turf. 12.5 ' assurent la direction des recherche- scientifi.tur?. el techniques. 59'-, writ des chercheurs, savants ou ingenieurs; lee 28.5 r,' reslants sont des assistants teeli niqurs et scientifiques. jr .Midwest Research Institute a rte organise en 1945. i Kansas City; it fonctionne comme une institu- tion do rich-rche indepenclantr. a but lucratif. travaillant sir 194 r'. d?att M) l?ntt i'lnalu.tli?? t i (?xttrrnrmcnt. 14 tklur i.i hi,.. hinu. . t Irut liropre tomptr Lrt rt [if s ebbs a $0 1. t .i un drpaltrnr?ni J. mrtallur,or Le Southwest Research Institute i ?t. 1947. pre' dr San Antonio. liar sin d-n d- I,.ra S4 I. n druxtemr lalhoratoirr .ri u installs a 1 i?ustor 4us a l,rtrolrs. On n's fait hlt enc.-it dr nirttllwKrr I.e Standford Research Institute -i . tr ., r ,stf went rn coo oration par Ica industrirls di la t aa6a ct de is region I'at thque ,\. "d-t } m. -t 1 'I uiw s.r nitati?n sans Ixneh,r Lute thus rntl,','IiSNhr tutu ? types de recherche' l?rur l'indust,ir rt It u?ut?taeew It rst equips lsxir faire dr, rrahctthr, .sit 1 ttritYtifi~ du tratail. lea marches et .tut-i dr' unbrides trchow d- F'hysittue. !'humus, \h'..ainqur. IfitrlojZte Bien qu'rntrtrrmrnt seo.srr dra I. mtriiilrs. d of a Pendant rn liaison abet elles L_'Engineering Research Association b come, Minneapolis. .u err fonds a la ho di- a PO liar un groups de sat.snts et inirrnirur? ,ita .ss caret e c1! .aillc Jr Concert trtwr IA Marine it ont dr s et r?epu- Irs; lour importance a dou- blr depuis 1939. La recherche corporative heft une place partieuliere- ment intporlanle. Les dipen- ses qu'cllr occasionne sent lsatistes. delwis di: ans. de 300.000 a I million de Ii- - res par an. La recherche dans la siderurgie Trois grandr organismes dominenl 1'activite techni- que et ccientilique de la side- rurgie la British Iron and Steel rcderation ; l'lron and Steel Institute - Is Rristish Iron and 4ee1 Research A-Lso- ri,t-?w (B.I.S R.A.) . La Federation ou C'hambre patronale de la Si- un grand developpe- dans irs laboratoires Jrru grr. a pour Irut rs.rnlirl ,.assume '..i I.s.n,,e 11 dr I Industrrr. Jr c.,nl,i,lr, 1.1 pr.riu, t,.rtt ,,.,r '' cc ,rtr,.lw?s et .1at1.I1AJUr,. J, ,us;. r J. y,tn..ttlM it t. , ,tr?grytrr rnsta at,on, noun riles du point sir % ii. -enfc . asst I'aide Jo IIINR.\. ,or srs nasmihsmM lation ???nl burn Up 11, date r-1 A deer rtu'elhr g pltquenl le. c?nnars?,uts. ? Ir, pies ,cr rmntn r atmor dans let &,maine' .uentrh.lur rt I.-r Iiantur A L'iron and Steel Institute ,t1?ir,rntr is jft* sa-ante t banter de .tlmulrr it-, .is Itsjtr. ?s,rwsdtrlass,r Irtlrniquet, pat I'ciude en tc,mnn??u,n sIr uret, & *,a* Irs pubhs aiions. Ir, tours de twi ict t,,.nnrment- is ra Kres. let relation, asrc 1'et,anrr,. t. uiauws Je n tadw son( fames asrc Ic tons.?ur, dr l.c Frderati,r q 4 BISRA. Le BISRA, durt{e par Sir t, h.crlrs C?+.ulrs.?, al l,etialrment charge dr 1'c xis ut,r,n Jr, ,rthercira dans ses laboratoirrs piuprrs Jr I-t.nJ,r, (I1dIrr .4 Birmingham, de I1illlwrt, de ,ss ansra..ta1 dins hs kk moires d'1 niversite. du Nat,.,nal Ish-,ecal La ()U des urines, asrc Iesquels Ic IIISR;\ passe dM ew bats. Le schema de son org.rn,..ttion rst J4,rsar tlwli hgurr 3. D'un role sont tlasse. It-, Jrpartrrip e recheidirs asec Ieurs laboratc,urs. ou Irurs buiea*. j I'autre. Irs di-uion-s nu scrsur, Charges dr c:.or& I ORGANISATION arDIVISIONS n D PARTEMENTSra RECHERCHF:S DU B.: SAA Co n ti e i 1. 4 . ad m. n. N rst.on Dir?cteur I~rtsr manta physique ~.,..,.-.-- a.,. . d,..a~ . - Ch. - a..... -. Mlue,,S. A, - d &uo.. ,sr. tea,, T_ on? -. 5.. ,M .. ::.s.-;i. i Aar, ,..c .::_? 0 Approved For Release 2003/12/04: CIA-RDP80-00926A003100040001-4 Approved Fo lease 2003/12/04: CIA-RDP80-00920*003100040001-4 de Is fonts. la fabrication de I'acier. la trans- on de l'acier. la fonderie d'acier. la technologic. firmati li tltallurgie physique. Natutelkment. les liaisons et ks accords sont etablis ales les organisations corporatives voisines. en particulier &ec Ia British Coke Association et Ia British Refrac- tries Research Association. Cow sous l'avons vu. le BISRA posside plusicurs laboratoires propres et it envisage d'en construirc d'autres. ., t t t Physique de Battersea. dirigce par Mr. W. Thring. Cc laboratoise occupe me sosxantaros? Jr i'cls.Htses. reparties dans des services achninisiraiils et surtttUI clam ks cinq divisions de recherches sttlsaates I.- Physique generak; 2?? Instruments de mesure; 3- Chaleur et thermodynamiqusr . 4' Mecanique des fluides; 5?' Mathematiques statistiques. Cc laboratoire a cte instalk do 1946 a 1947 et a deja produit un certain nombre d'etudes inictev%antes stir ks applications industrielles de la physique. Le hnancement du BISRA est assure. phirtte par l'iron and Steel Federation, partle par I'Etat. 11 amble que l'organisation de la recherche au sein de 1a profession et a l'echelle nationals act ete concue et roe on Allemagne. bien plus tot clue dans les autres d'importance siderurgique a pscu pros equivaknte. la, en 1911. existait a Berlin une Kaiser Wilhelm Cesellschaft zur Forderung der Wissenschaften (K.W. t); Belk-ri vient de prendre le titre de st Max Planck Cresellschaft ti. Cette Societe, au capital de 15 millions de marks-or. s'itait donnee pour but de creer des instituts dans lesquelt in chercheurs scraient degages des charges de 1'ensei- pnement. Elk avail tree. entre autres.ren 1912, un ins- titut de Recherches pour la houille a Mulheim. Bans Is Ruhr. Bien avant cette epoquc (1860). existait une pujs- sante association d'ingenieurs, de techniciens et de patrons qto. antes plusieurs denominations. prit le titre de Ve- rtin Deutr.cher Eisenhiittenleute (1881). Cette association suscitait l'etude en commun des problinses techniques intiressant la profession. Elie comprenait. en 1938. 6.686 members et disp osait d'unr bibliolhcaue de 68.000 ouvrages. l.,rs etudes techniques etaient dirigees Par des Commissions spxtcialisees dr 10 a 20 memi,res chacune. done Ies principales etaient Ies suivante. : I " Minerais; 2-- Ilauts fourneaux' 3" Aciers Martin et Thomas. product. refractairrs: 4" 1.arainoirs: 5? Materiel metallurgique : 6- Lssais.de materiaux. Le president de cr, C?mmitsiont cot choisi parmi kt Uxcialistes ks plus actifs it Ies plo' spirt s presider aux Visions Pendant Iongirmps. it fut dif6cile de faire .y+rti er ks memI're .Buz coniioserses: nsait le' Com- ^rwons prirent une sic plus intrn?e a la suite du rem- t4aceroetlt odes .tutodidas tr. 1.at de )runes Ingrmrurs dent de chaque t'ommi?ston rot aide' par on ~usfRl`RtaLlt'E r:x FRANCE ET a L'ETILS.SGER suivre lea recherches faites a 1'exterieur. Parini les ingenieur apppointe par le t'erein. remplissant ks lions do secretaire, d'organisateur et d'agent do liaison. Le role principal des Commissions cat de determines lea sujets qui mentent d'eire mis a i'etude rt de Irouser le praticien capable Jr resoudre chacun d'eux. Les Commissions etabh.scnt des plans de travail et repartissenl eventurllement Ir travail dans let usinrs. Celks-ci ire montrirent pas toujours la meilleure solontr pour cc travail colkctif. surtout tant qu'il V. rut des dirigeants autodidacts.. Pat hi suite. le travail en com- mon devint Is rigle. cc qui n'emper bait as les usines d'etudier pour leur propre comptr des t>?-hlemes parti- culiers, et de prendre des brevets. Les Nudes corpora- tives furent plus ionic. a s'etablir 1tarmi let acierle fin". macs leur ralliement se re-alisa cependant i*'u a pro. Le travail ayant t4C reparti ri execute. Ies rape vets Borst adresses separement au secretariat de Is Commission. rassembles et coordonnrs par has. I.e rapport d'en- semble est presents au court d'urw reunion par Ir sec re- taire de Commission it la discussion .t lieu sous I impul- sion du president. Rappwtrts rt discussions -Mt grnrlale- mert publics- Tous let deux moil ens iron .t lieu un" r-u nion pltniire des Commissiow d'lnf,--m,- lrs. Les 4lications du Vrrein soot Stahl and F. aui reproduit d,- preference let memotres trchnutue,, ri I'Arehkr fir Jas Eurnhultenleulr. Out .cwntihour (rite separation des publications technique- rt ,cientil?tu' s'r*t reveler utile pour sati.fairr let Ingenrrurt rt ks s her- cheurs. Le service de dot umentatit,n tint wt hs hr, au tour k jour: ks tableaux dr referensr peusre.t amts paraitre des la premiere quinraine cfr janvirr pour Panne, pwerrdrnte Parini ks qt la,lont ?IVnalers rnmme farts. uheirrarnt efficaces. on the lee u':+ratr.i? fir QaIi. o. d e..n- tr81e thrrnsiqurl oui rnrnt)rrnalrnt tr?'t, burraul tKuhr Carne. Hauer-Sik 1r) sere doUtr If(tenuu~r", au tot I. qui aliment d'uwrw rn urine dons le but dr kin lure ,eatt,er des economies de r .5 5bustible Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved Forgolease 2003/12/04: CIA-RDP80-0092 03100040001-4 Le Kaiser Wilhelm Institut fair Eisenforschung I.n mars 191 7. le D' Stnrngorum. president du l c- irin, afbrmait Is neccssi a tour is metallurgic allemande d'unir Is recherche scieahbque a lapratretuep.xrt lairr fatr a Ia eoncurrerice mondlak d'ata'% guerre et, rn partx u Iirr, en hue d'atder i I iudC rxpenmentak jt praiit ue des Iravaux des Comites du ''l rrrrn. A Is s r de (ritr declaration. lrstusines allemandr, e'engag-~rrnt. le 19 turn 1917, a (ournir pendant drx ane le, fonds nece+.sarrrs a Ia conslruclion rt au fonctionnrmcnt tie. labexatoirr. Sur le plan scienlifique. k nousel mditut 1ul Jifbhr a I.+ Kaiser Wilhelm Caesellmhaft. Ex prolesseur \ 'ust fut diHiirnr '.ii Ir Gou%ernemrnl tommc dtrecirur dr 1'lnstitut; rn nwemhir 1917 1)t 1920 it 1921. on tran.form.r en iahoratOires dr. both ments d'usmes. Le profrisrui Rust fut trmplace. en de rembre 1922, par son adjoint, Ir profr.srui Korbet. Dc. laboratoires dcfinilif, furent cttnstruits en 1931, stir un terrain de 8 hectares offrrl par la silk dr I)utseldr.i f L'ensemlile des construtliont lahoialoires. balk' d'utt- nage el de lahoratoirrs le+urdt. annexes. touirr rniuun 4.600 m'. dont 1.500 tour Ir laloraloire central ci Ia bibliothrque et 3.100 tour Ies halk.. l.a surfatr uttle des laboratoires est de 5.600 m=. L'r(frctif s'elriait. en 1936, a 130 twrsonne.; it depassa 150 par la .uitr Le K.\ .1. etait, en 1938. divi?e en anti driartr- nienis : I- Minerals; 2" Metallurgic grnrrair; 3" Metallographie ; 4-- Chimir rt chimir-phv'stqur 5- Physique. Les drparlrmcnts de metallurgic grnerale ci do donor Ile faisaient tiu'un a l'origine; its furent separes pat la suite. Cettr diiuion qur iiaraissait logique au moment de la mite en route de cet lnstitut est aujourd'hui critinurc t+ar yes proprct diritteant., prHrxtant qur ICS cutely d'rtu? La recherche scirnlifique et technique daps l'mduArir siderurgique francaise remonte deji loin. et it suffit de iappekr les noms d'Ctsmond, Heroult Martin. Chaitiy Le Chatelier. L. Guilin..., et crux dune generation plus jeune : M.M. Porte in. Chevenard. Chaudron, Perrin, et bien d'autres encore, pour titre convaincu i Is (ohs du dynamisme francais et de son individualisme. C'est en effet souient seuts et libre. de leurs initiatives, avec des moyens materiels limitcs. clue cis savants ont reus>i de belles d&ouvertes. C'est aussi souvent dans In labo- ratoires d'usines et toujours sour l'impulsion d'initiatiies rriiees qur cis recherches furent entreprises et metier, i bien. Mais, comme Ir die Louis de Broglie : tt Si ley gran- des decouicries soot le plus souvent l'QUVre d'un soul. le developpenent de leurs consequences et leurs applic.i- .Sr. iet.itut -te- Ia! Ure ureic tit rl rte.;-:e t - ,Hula a"* tot.frkemrt AO UV- .N' i eutrru eiI:. tondit qur moirnnant le - otx outs tie tawtrt ice dun nil nic ;af+rrali.ire. 1)r p1u- rn t-6s. ;a rxtrerimenlair t'lr%tent Ir 1 ail J'urx- ntuittr it am q(# (xunnrir et 1'indtitdua6rnr recruit rst un nb.aatb g Ainti. la Host au paint tie it }rrrpsray & ansranear, a parttr du mmrrat ru.ie 2 mail, liar Ir% disttx.nq metallurgxtuc it thtmigtse. Is lursaw met au Ixuni Ia conduitr du haul fawrttrra 1E ehimir le tratirnwnt pat Ir. aleahnei-trrrrux t 6W dr. t Il,tt,hutr. uhrerrrur*mrnt ii.in?fii&me. re . Liaison du K.W.I. et du Verses I -r- -urea d'etudet du K \i I ?i.nt c htwu ps is, diiet ieur, aide de se. cnllalita,ttrut. .t trnhfxtuet. A > al i err eiidemmrnt dre demandr? rt dr.tr- e%j"Urtirs P/! Comm-,nn- d'mgemeurs. I.et irlaht,n? Ju p j \'erein rt du directrur du K W. I . de?tunc par to Go iernement. etairtit etroitrs. par tutir Jr la dame sr qur uniuait .es drux ttrr.etnnalttrt, mat, n'etateatpas4 ttlemrntir?. Lek (ails talent mirux qur Its ratllettl. crpendant. tsrut-etrr cst-cr unr lacune que ectte isrs nail Hat ete preite formellrmrnt. I.r dirreteur stis du K'S .I. elf Ir proleserlrr Weirr. 11 a templait b professrur Korber. in )rt de maladir en 1944. I.e V'errin fournit Ia moitie dr, fond- du (Lt1 grace aux iersernents rffrt tue. par k? usinrt Cr aw tnhution cst assurer par unr lair a Ia irnte des fadsif acers. librement tonsentir tray Ia Max-Ilawlic'a3 chaft. successeur dr la K.tt?er-\L'ilhwIm Grsrllsclia.It Irrogramme du K.\3'.I. engh.lir tout Ire tuoblii es mill lurgiques, depuis Ia preparatuin du mineral iwtxxsii rssais des produits bnit. I.es etudes de base v oft unr hive craft, "If K.u'.l. collalxrre aussi acet l'indusine tit Ire irrol iss teehniqurs. Lions exige generalement It t-rordinatton de nmissl efforts. ii La recherche collector drvirnt aujourd'hw asr s-' ceuite. La Sidirurgie francaise I'a ainsi cotaptis d t S. decide de crier un Institut de Recherche, pow Is fession. Celui-ci, bien loin d'annihiter Ia rrcltrrck 90 I'encouragera en ouvrant es fenetrrs butts grats&s,as effluves du dehors, en s'rfforcant d'eviter tout Z tisme et en assurant des liaisons inexistantes jus4ti La recherche corporatiie en France commelsca a iR ;taniser cn 1939 sous l'evide du Comitc des Formes. & preside par M. de \Vesdel, par la creation de cot missions d'Ingenieurs. ` Ces Commissions, au nombre Jr 14, itrewtr t h suecialistes qui se reunissaient sous Is toes d'entre eux, choisi pour sa competence pancculiere I Approved For Release 2003/12/04: CIA-RDP80-00926A003100040001-4 Approved Fof`Release 2003/12/04: CIA-RDP80-0092e 003100040001-4 L'ORI;ANlSATI N Ill. LA RF.r'HF.R(IUL Sll1 kLmjlut'C E.s t`R.\\c'E 1T .\ t.'ItTRA\t:t.R a poise but de meltre a j0qW lew sp"fitC. de des Cchanges de Vw d Is mine en commtm ids hags: pr 4 res doom Ca Commissions etaient in lttirMOn . Hauls fourneaux Tho- =Thomas ; . Thomas ; dries Martin; - AclCries electriques ; -- Laminoirs de l'Est et du Nord ; -- Laminoirs du Centre; - Traitements thermiques Centre ; 'Traitements thermiques Est et Nord; Utilisation des combus- tibles; Products plats ; - Moulage de I'acier ; - Produits refractaires. SCHLhMA DE L'ORCANISATION DE L'IRRID ET DE SES LIAISONS u...,,.,e so a 08M. w Is *.d".. *e1Mw .M.aF...,n 4 Chacune de ces Commissions s'etalt reunie' plusieurs loss et certaines s'Ctaient? revelCes d'une vitalitC promet- teuse, lorsque survinrent Ia guerre et ('occupation qui ks went completement en sommeil. Elks furent reconstituees, sous l'autorite de I'Associa- tioa Technique, en decembre 1945. taut celk du moulae de lacier que Is Centre Technique de la Fonderie. recem- meat mis en place, avail deja retablie. Le secretariat MI de ces Commissions est assure par M. Georges r. Jr la Chambre Syndicate de Is Siderurgie. Les sujets traites par ces Commissions sont d'ordrr technique. mars Is technique lx,se toujours incidemment ties problenies scirntibques lorsqu'on veut pousser un peu loin Is. investigations. L'organisme corix,ratil capable d'aider ks, Commis- wits, bolt par I'etude au laboratoire dr4 probltmes poses par ces Commissions, soli r I'execu- lion en usine de recherche: i I'eehelle ' ustrielk. a'esistait pas, mars le projet de sa creation tttait dan+ ('air depuis 1938, etxsque a laquelle M. Lambert-Ribot. a I'mitigation de M. f ortevin. avail obtenu du Conseil' de Direction du ComitC des Forges. le printer du finan- ommat d'un tel organl?me liar une laze a to bunt de foate on d'acier. Vitueat Is guerre el l'occupatson... lies chose: en res- *=A L' jusqu'en 1943. Mais une poy~d'hommes avaient garde confrance dans ks d de la F?aace. preparaient I'apres-guerre. Sow Is patronage de It Aubrun. Ia Commission d'Etudes Scientifiques It T'StWitues (C.E.S.T.). aloe presidee par hi. Taffanel IRSID o..,........., .q.. et plus tard par M. H. Makor. chargrad I'usKeaieur Jean Mist des itudes relatives i 14 c reataws du Labora- toire de Reeherches de Ia Siderurgre. Celus-ci etabht aver ardeur Is plan d'orgaaisation et ('avast-pro)ei deg Iaboratoires. La rapport: fureat approuves; ds drvatrel servir de base de dipart assn reahaations materselks. jean Put rejoigmt. en 1944. les Forces Fraacasses de 1In- teriew. et tut tree Is 21 aoist daps un cosebat d amere- garde; en souvenir de son oeuvre creatnce et de suss sacrifice. le tom de Jean Rist devatt titre donne. Is 19 jinn 1945. au premier bi tunent des tutus* labora- toires de l'Iltastitut de Reekerehea do Ia Side- rutrgie (IRSID). comtruit a Swail-Gerrnarn-en-Laye. La figure 4 dome Is schema de Forganhsatson de I'IRSID. Cehu-a depend de la Cbambrr Syndicate dr is Jiderurgie; iI est iqakrw controk par la I.)irecison de Ia Sidfrurpe du mmistire de I'Industrse it du tom coerce st par on cotRrokur d'Etat du Secretxnat d'Etat a Alaues Ecooomiques? 11 poaede un C oral d'Ad- c-war41e m str gut d!iffit sa poktsque geeerak it $a to ti_c, financhte. La discussion du =1=A. s?mal de. recl~erdws eat west a pan Srt Ire hn*qur (COSTT) par M. H. Makoi. Les :Mess d'etu- dea ado a anal esammes data des Comnasuosss spsirta- Iisees duet Ia prrcipak ea la lotnmisaioe screnafiqur prindee par M. CIteyeeard. asesabrr dr F'lnstrwr Le Directeur. aide d'un coese+lkr scsewabqur, *wi A. I'orlevin. member de I'lesatut. admaustrr nr,{an,sr. coordonne. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved FoNQrelease 2003/12/04: CIA-RDP80-0092pt003100040001-4 lam-, i1...=,?n? rice I Industrsr ,,.nt rr,t- inalement as,Urees liar I intrinirdiartr des l ommc,lon, d ingrmrur,. tr..on- lacts aset i L msri- &ile. par 1.1 l omml,- slon *xicnittique Out comprrnd w-14 pto- Iessrurs d t_ mversl- tes dcsignes par It' l entie ,imiuttal de la Recherche Jcten- tihqur yur drlw-nd du Ministerc de I h.du- tation Nationale. 11141' nalurr11r1u. if, des. it-lahons duet ti? ,unl .U'sr rlablies anal I Indusirtc par lc. I. hrl? airs :Vf%1- crs cxlctlculs de 111('511) ct avec i 1. iltsrrsitc l,ar Ies lick des Veparte- urrnts de r%rchcl- t Iles. Lcs srtsltr, cxIc- ururs cumptennrnt des srrvtcc?s t?t sta- tions 1t I 1> iut tai, a%1't. .~aulnrs; 1.' l ukr ct luurncau aver i Acicries. Lis services departements et u.t t'.1 Jan , 1: Jt-ma; li de ri RS i l p.., r.. tur.,.u. .l raiti,nrulntr., p,...i-j'g, haul bureau a Longvvy; se diviscnt, tx,ui le Ibis services : I'hysique et statistiyue,; Chlmie et chimir-phyuyue; Services gcneraux'? (ateliirr d'usurage Services admimstratils i i tuniptable,; Documentation et bibhothique. Les bureaux et des laburatotres provii-mes out etc u stalirs dans l'immeuble existanl dans le domain Jr faint-[.tiger, a Saint-Germain-en-La)'e, acqurs par I'IRSII) fin juillet 1946 (fig. 5). Les laboratoires, Iris exigus pour le moment, pourront prendre de 1'extension lorsque les bitiments Jean Rist seront ternunes, ce yur est prevu pour la fin 1949. mats n'attrindront lour plemn developpement qu'apris I'achevement des laboratoires scientibques, presu pour tin 1951. Outre son activite propre, 1'IRSID a etabli des Com- missions mixtes avec ks industries voisines. les houilkres. la fonderie. la peinture (revctrments antirouilk), dan, lesquelks sort discutes les probkme, communs. I !'4 easier tie .,t., ? Jr era a! rt it i dtt!*.ttettf tt k4l t.ti,, d,,tlt L a ,,,I u?t1eseFJ* ii trgurr A .'1( IUN`iit Jean Rot .. trots, atelier, * 11 von, de iratr+atq 1to11. d us,llau. trot SLHrr, 1 *0 Hirt alu4ue, . . )* tut lit .1 Sill? de ltlanchel 4.b_i m=. It' s enti al d ear ,stir Jr l,ianchrr, y 211"t nt. 1,A" tint utlr auk i,aFP . Ilrnsir t'1 la 60 t,h} -t,%rr. oar 1tour 1a ph,.ai Lies de" a.Y, . t r.rijuguent liar it blot t ratral rim quart too 3-ttrr4 'es scirvite, *Joe tratif,. tlwtt>ts* 1't do ' LUt u'nt7t" 1.a I Wtuaate 111:11?.- dl lirta rtle>rl de 1.0(10 k\'A. L'rtfetttl de I'Ill~sll) s'eli-vc attiai men! a 70 prrsunnr., 1't doublrla rapidement. Lii aaeij que ses laboratorres tonttsounent a plan, des trasant recherches sort confies aux lalx,ratulre? .-ii acuvre is I'mdustne, its rcoles superneures d'ingemrui,, ks Lars sites. Parrot crux-ti, un certain oumbre, 4U1 at' ud iii tout fait connaitre par des etudes de rnet,lllutir plgl? yur, unI acqurs tine rrnommer tnundlale. A part in & des de R. Prints. G. Chaudrun. If. Maltt? ei L. Ka que. on tiouse din, le, publicatil;ns ftdn%aisr, rciaw hunt lieu detudes sur le, Cquthbrv.. himiqurs. t',-444 one suit' dans laquelle l'IRSl[) ?e delta Jr drstraH i impulsion. L'IRSID n'organlse pas le, Cungres et It', CoafeuM tummy font I'Iron and Steel Institute ou I'jasltAra6 Ilterro y del Acero, par exemn}pt.; cette tache res l la Societe Francaise de Metallurgie. L, !Star de cette S*ciiti avail etc projetee, en imirs 1940. it suite d'une mission qui avail pour but d'orgatwa Ii cooperation franeo-britannique, dan, Ir domainw d" O therches scientifiques et metallurgiques. Crtte mission =taut comlx,sie de M. A P dwf de Ia mission. et de M .M. Chaudron. C E. Dupuy. Nicolau. I(ot aid. Approved For Release 2003/12/04: CIA-RDP80-00926A003100040001-4 Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Mitt HF. MUttkt'R4:t*)t'F. V FRAkt F FT .\ t.'' TRA!it;FR 1_'tdt'r. laissee cn sommerl pendant f'occu}zatioti. fut rri,ric en 1944 au lendemain de la Liberation. 1,,i *Kxirtr Francaier de Metallurgic assure Ia liaison ,-ntre ks savants et lei ingenieurs m talturgistes. elk rrituurage lei rcchetcbes de son dontaine. organise les nag'grts et ks Confercaices, et assure la pubhcatwn dct mirnours trace a la Rec'ttr de '4litallurgic. fonder en 1904. par Henry Le Chatelier. I.+ `'nrtctc eat administrcr par un Co soil. dutgie par ,eta bureau rlu 1mr lui et nommr pour on an. a l'ei rp- u*1M', ...Itt parto* tre+ Kr. RELGIQUE I_a Iirl#tgur txs+setk Un tettatrs troadtrr toe latanta uniterutaurs c'tnterrt?.ant tics acb%rtnettt sulk i.t.a? .r,te daunt assacsatsoa tans but Iucranf. Iarzewntt distr.. des .,Aida- at I'l.RSI.A. 1, ( % R I t,..t,. t err a ~io0'~ `ir+a,_ ~M U. . + , 4u*ttw t1f, d i+t? ttaitfors~ d 3e' raeiaux trrrrtts rt n,in Les flats to, pat '6& Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 awcbww.w'u+ alit a N 14 %1 -'al Approved Foelease 2003/12/04: CIA-RDP80-0092fi(ik003100040001-4 SCHEMA DE L'OROANI1ALION DE LA RECHERCHE MtTALLUMQUE r+ BELGIQUE . R. S. 1. A. 17-C.N.R.M. Conseil d 'administration Section de Liege Comite de coordination fixers au prorata de la production s-t du nomhir d'uu- %rirrs par le Conseil d'Administration el qui ne peutent pas drpasser 1 2 pour milli du chitfre d'atlaires. I.rs frais de recherches proprement dies sont assures par moitre par 1-1 R :` I A . ! aut-r mcutsr etyt ty .harge du C.N.R.Ml. Le schema de I'orsanrsati,?n du ..` RAI VA eft dans Is igurr 7 Le Conseil d'admim?tratuui tomprrnd trerasr aft ores. nomme? pour deux ans. toes duet teen el'a on President est M. Perot. m -n premici txe,ls{ est M. I)ecoux. Encode. I'organrsation se dedait a deux hrarrthes paralklrs, corrrspondant iui ^nwrla dusirtelks des bassins Jr Liege et du I Iamaut. t., p ardent assume en mime temtss le- tundsons J'adalilb tour-delegue de la :'ettion de Liege ri 6 pier air ,f* litesident assure la mime font Lion i la Serb t lainaut. Le Comitr tee hnique de la Section de Lregr d p side par It prolessrur I hyssrn. tclui du I laiant to Ni. Piiont. La liaison entre les drux sriatusss et s- par un Comtte de Coordination tome tics drtrt Ids dents et des Diretteurs respectifs des secuom section aside un organisrnr de direction des retit Crlur du Hainaut est dingy pal Ml Mas?rnon.Ili de Liege par M. C oheur. Bien quo lrs drux set (ions n'.uent pas dr ds^a reserve i chacune d'ellrs. it taut noter quo IA .rtbj Hainaut s'est attachre surtout a l'etude physico-th des probkmes siderurgiqurs, et notamment aw iyjaft liees i la presence dri gal clans lei metaux. tanikg Is section de Liege est orientic davantage secs b sique des metaux. L'indusine sideruigique itauienne rst en grande pence nationalises, mais pratiquement les usines Cogne, i Aoste, soot Irs auks qui alert ete placers ditectement sous Ia gestion de I'Etat. Dan,., Irs autres firmes siderurgiques importantes, l'Etat n'a qu'une faibk participation directe et n'agit quo par I'intermediaire de l'Institut de Reconstruction Industrielle (LR.I.). controlant 1'industrie au point de vue financier. Celui des organismic dr 1' I.R.I. charge de Is siderur- gie est k K Finaider . , sous controls duquel sons pla- cees ks usines Ilya, Terri, Ansaldo (actuellement SIAC Societe Italienne des Acieries de Cort tliano) , Dal- mine. Breda. Ces usines representent 50 s de Ia pro- duction siderurgique italienne. Le Finsider a recemment decide de crier un Centre de Recherches Side'rurgiques dons la direction a ate con- hie i M. le professeur Scortecci. Parmi ks laboratoires industriels Its mieux outillis tour is recherche siderurgique. citons I'lnstitut Scientifi- que de la Socii{te Breda. occupant cent dix employes. dont qumie docteurs. et celui des usines Ansalda. G laboratoires font deji des recherches sous Lontiat. "ire le Gouvernement. sort pour I'industrir. Les IabsMiie de recherchcs de Novare. de Ia Montetatitu, wale imtwrtants. Bien qu'ils ne soient pas specialises desk metallurgic. de nombreuses etudes sons fartes iw Is division de physique des mitaux. L'Itahe txrssede une Asooeiation de Nib& gie ., ties vivante; son president est le D' Dacca ifs secretaire general in D Masi. La liaison entre l'Universite et I'Iodustrie rst As1 Des profesaeurs specialises clans des techniques a* vices particubers tntiressant Is aiderurgie. sari saw charges de dinger des sections de Iaiwratoires indnf Un des gros soucis des dirigeants dr la sidesal bonne est Ia formation des cadres supeneurs et de lattlf trice. On veut s'eflforcer de rekver k niveau near pour le mettre i mime de faire de is ~2 et celui du chef de fabrication pour k reodre plus eerie of aux proms et aux techniques nouvelks. Approved For Release 2003/12/04: CIA-RDP80-00926AO03100040001-4 Approved For''RIease 2003/12/04: CIA-RDP80-00926W03100040001-4 L'ORGANtSATiON DE LA RECIISRCHZ S1 Uti= atlt TLt CE ST A L'[tTRAMjE& TCHECOSLOVAQUIE L.lndustrie siderurgique tchecoslovaque a etc natio- tt apres la deuxieme guerre mondiak. mail non eta- tiaee. Des groupes puissants d'industriels et de banquiers men ou mime ennemis avaient contnbue au deve- kpement de I'industrie de ce pays. L'expropriation des tttttties an profit de la Nation lea rendaient done pro- pts nationales. mais lour gestion devait conserver les Prmcipes de gestion des entrepnaes privies. En particu- kr, doivent se procurer par des credits normaux le Capital necessaire a Ieur fonctionnement e't I kur dev-e- lpppement et payer Its mimes impots que Its entreprises Leurs employes ne sont pas fonctionnaires et sont mninis aux dispositions lega- ks appp~liquees au personnel de I'industrie privee. La siderur ie tchecoslova- que constitue la septieme sec- tion du Nlinistcre de 1'In- dustrie; elle comprend trois siderurgiques dis- tmncts.ce qui permel une cer- taine concurrence et une cer- taine emulation. ce sont -, Vhkovice, Banska i Hutni et ks Acieries Reunies de Boheme. La figure b donne is schi- tna de !'organisation de la a Direction de la Siderur- Ls du Ministere de 1'In- rie. La recherche sur Its pro- Wines interessant la siderur- gie cult tres developpxe avant Ia guerre clans Its [- ni- stt'iite's, Eccles des Mines. Ecoks de Fonderie. et lea chercheurs tchcques tenaient me place im1'ortante clan-, Its Congres de Metallurgic internationaux. L`industne pvs- aedait egakment des taboratoira important et des cher- chews reputes. Actuelkment, Ia Tehecosbvaquw soudre dune t>rnw- ne de cadres; ceux-c etaient avant-guerre en graade rrtie etrangers; par ailkurs. Is fenseture des f=.cs? es ci niversites pendant !'occupation allemande. qw gut Ion- et lourde. tae permit pas I. formation de cliF-l+?. tl en resulta que Its cadres esistants oat etc astrrmts d'abord ii un groa edon de reconstruction rt d'ext&da- tion; cependant. is recherche eat toujours en strand hostneur dans lei ecoles d'ingEnirur< et dolt se develop- per de nouveau sous !'impulsion d'un Institut National de Recherches Siderurgiques en projet. PLAN DE L'OROANISATION INDUSTRIELLF EN TCJ-1 COt3LOVAQUIE 1 I I Sw. !:on I~ehn.pu? Sl? "eo,w TSrtrite Sr, run ?dm ~ near,. 5r