SCIENTIFIC ABSTRACT SVECHNIKOV, V.N. - SVECHNIKOV, V.N.

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SCIENTIFIC ABSTRACT
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SVECHITIKOV -=LI, I-V.; SVYECHN.'EKO'I, V.K., diysnyy chlen. Coalescence of carbon impurities in tempering wrought iron. Dor,AN Un= no.5:358-363 151. (VIRA 6:9) 1. Akademiya, nauk Ulcrayinslkoyi RSH (for Svvechnikov). 2. Daipropetrovalkyy derzhavn,w,r universytet (for Salli). (Wrought iron) -- STE-CHNIKOV, V. N. - , O.S.; SV-TWHWIKOV,,,YA~, diyanyy chlen. W~ Iffect of the duration of low temperature annealing on the utrength of tempered tool steel. Dop.AN MSR no-3:232-236 152. (YMA 6:9) 1. A'kademiya nauk Ukrayinalkoyl RSR (for Svyechnikov). 2. Nykolayivg')W korablebudivW instytut in. admir&l& S.O.MakiLrova (for Koysyeyenko). (Tool steel) SALLI, I.V.; SVY1WHff-IKOVj-:-V.-M-;!,., diyanyy chlen. - -' .~ , ,1~ Coalescence of cementite in carbon steel. Dop.Aff URSH no.4:342--347 152. (KLPA 6:10 1. Akademlya nank Ukrayinelkoyi RSR (for Svyeahnikov). 2. Dnipropetrovelkyy derzhavnyy universytet (for Salli). (Gem*ntite) - '-flip TTI 1~17, D _~" -1 .. _T 4 _. C;7i; 1, ~ , _j " - :-. ~- 1 ~ . ;T. _ _, fI K I_- 7 . .- - I 3t-,,!1 - Brittl-ne!ns Axm,~,alirn-, bri! of structural steels. Trudy Inst. chern.ralet. Xr UER3R.no.5, 19~52. 9. li~,I`ITMY LI3T OF ACCEI`SI~-NS, Libr--.Iry of Con.gress, D,,!cembcr 1952. Uncl. SVECHNIKQV-,-L-X~-- O.S.; SMOHNIKOIJ-4.R., diyanyy chlen. Mechanical properties of martensite hardened alloy tool Bteuls. Dop.AN URSR no.6:1187-49.3 '52. (MLRA 6:10) 1. Akademiva nauk Ukrayinalkoyi RSR (for Svechnikov). 2. Itrkolayivs'kyy korablebudivnyy instytut im. admirals. S.Y.Makarova (for Moyiseyenko). (Tool steel) MOYSEYMKO. O.S.; SVECHNIKOV, V.M., diysnyy chlen. -- - Effecf of the regime of heating on propertien of hardened carbon steels. Do-o.AN URSR no.3:220-225 '53. (W-RA 6:6) 1. Krkolaivs kyy korablebudivnyy Instytut im. S.Y.Makarova (for Moyaeyenko). 2. Akademiya nauk UkraVinslkoyi RSR (for Svechnikov). (Ste-91-Heat Treat- .0 ment) POLEMMITSEV, 7ladimir Sergeyevich; SVRQB .NIEV, Y.N., redaktor; SAMOKWALOV, Ta.A., redaktor; KRYLOMIr *P.n.s. tekhnicheskiy redaktor. (Very-low-temperature treatment of fast cutting steel] Orhrabotka byetrorezhuahchei stali glubokim kholodom. Kiev, Izd-vo ikkademii nauk Ukrainakot SSR, 1954. 77 P. (MLRA 9:1) Wetals at low temperatures) (Steel) ED _36q USSR/Physics Cold Shortness of Steel Card 1/1 Author Svechnikov, V. N. and Golubev,, S. S. Title On the cold shortness of high-phosphorus steel Periodical Zhur. tekh. fiz. 24, 467-472, Mar 1954 A Abstract Authors investigate mechanism of the effect of phosphorus on cold shortness of steel and attempt to eliminate contradictions in existing viewpoint on the effect of grain size on brittle failure. Establish that presence of fine grains tn ferritic-pearlitic m.4.x- ture produces high resistance of steel to brittle failure only in the case when groups of ferritic-pearlitic grains have no near- similar crystallographic orientation. Furthermore, they conclude that similar fine grains have different effect on cold shortness of steei depending on method used for obtaining fine grain struc- ture, namely, hot mechanical work or heat treatment. Four refer- ences., all USSR; one 1934, others 1.949-1951. Graphs. Institution : Submitted : September 30, 1953 USSR/Physics - alloy steel grains FD-1-0-74- Card 1/1 Pub- 153 - 10/24 Author Svechnik , V...'N., and Movchan, B. A. Title : Structure of the primary grains of alloy steels during heating to a high temperature (1300-140OPC) Periodical : Zhur. tekh. fiz., 24, No 10, 1823-1829, Oct 1954 Abstract : The authors study by direct methods the structure of the grains and the boundary zones of several alloy steels (results tabulated), namely at temperatures of overheating. They find that chromium and wolfram diffuse into the boundary zones of'the grains and that manganese may concentrate att internal defects because of rolling. They describe their experimental procedures and evaluate their results. Institution Submitted January 29, 1954 SVECHNIKOV, V. N. and SPEKTOR, A. Ts. "The Effect of Zirconium on the Polya=phism of Iron" an article in the book "Questions on the Physics of Y&tals and Yetal Science", AS Ukr. SSR, Kiev, 1955, 151 PP- So: Sum No 1102, 19 Oct 56 SVECIRUKOV, V. It., GRIDNEV) V. N.) KOCHE-RZ11INSKIY, Yu. A. "On the Transformation of Ferrite Into Austenite During Electric Heating" an article in the book "Questions on the Physics of Metals and Metal Science", AS Ukr. SSR, Kiev, 1955, 151 PP. So: Sum No. 1102, 19 Oct 56 IR"-. -I T, -ere -43 ............. W-1 W gvf uOUM:f rau~, of up ta UVI'sm.. acming at 4,5 is,c. .1,~ icnip. cur~-e stuce-A fvr-mnv&~tltalUityat ahcut (Start of tht: 743 aud 762', depeudirg upGa the rate of heat ing) L%Coitrwsrck. V .=lion MIN pe gu~ z STACHNIKOV. V.N.; IIOVCW, B.A. ,: i:4 .. - - Equilibrium of chemical inhomogeneity in alloys at high temperature. Sbor. nauch. rab. Inst. metallofiz. AN USSR no,7:32-47 156. (Metals at high temperature) (MIRA 11:1) (14etallography) piiK Ov L42025 (Runfam) MO& reclse Mination of the flibrium Dia a the Fkw8yStw. YJIOcftnci& diff. g.mmmy Sealwan nliav and A- K- Shurim AladerLq ivau-k -B~O no-T7,M7-,p-27-29, A Alloys studied c-cnLqinvd 0 to 12-5Z As, 001f to 0.020% C. Th, hciutj~~,;,am~ solif-lus cur~cs and the boundirw-i cf the .:Art)4,.n -4, tea tc Itit, rt-zinri -~,;D 1.4 sic matulp Iv. fr-z~tn5 137-58-6-13Z65 Translation from: Referativnyy zhurnal, Metallurgiya, 1958, Nr 6, p 299 (USSR) AUTHORS: Svechn ridnev, V.N., Kocherzhinskiy, Yu.A. TITLE: On the Effect of Carbon Content and Original Structure on the Temperature of Austenite Formation in Iron-carbon Alloys on Rapid Heating (0 vliyanii soderzhaniya ugleroda i iskhodnoy struktury na temperaturu obrazovaniya austenita v zhelezjug- lerodistykh splavakh pri bystrykh nagrevakh) PERIODICAL: Sb. nauchn. rabot In-ta metallofiz. AN UkrSSR, 1957, Nr 8, pp 42-43 ABSTRACT: The temperatures of transformations (T) during elec- tric heating at 20-200 degrees-C/sec of carbon steel containing 0.045-1.08% C with various structures were determined by the dilatometric method. In annealed steels containing structurally free ferrite, cX-r T begins at 755-7600C and ceases at 900- 910'. In annealed steels containing no structurally free ferrite, c)e., -~, T proceeds to completion at the stopping temperature on the thermal curves at 750-7550. In tempered steels the Oe -W' T takes place at lower temperatures: 30-350 lower in eutectoid steel and below the equilibrium point A3 in hypo- N.K. Card 1 /1 eutectoid steel. 1. Carbon-iron alloys--Analysis 2. Carbon-ir 'on alloys--Tem- perature factors 3. Carbon--Pbase studies 137-58-6-13258 Translation from: Referativnyy zhurnal, Metallurgiya, 1958, Nr 6, p 298 (USSR) AUTHORS: Shurin, A.K., Svechnikov, V.N. TITLE: The Iron- carbon- ~ar s eFnic boys ~rna zhelezo-uglerod- mysh'yak) PERIODICAL: Sb. nauchn. rabot In-ta metallofiz. AN UkrSSR, 1957, Nr 8, pp 58-64 ABSTRACT: The alloys were smeOqd~of metallic As (967o), Armco Fe, electrolytic Fe, and an alldy containing ri 5jo C in a Tammann furnace. Homogenization was done at 900-12000C during 6-8 hr, which fully eliminated dendritic liquation of As. Investiga- tion was conducted by the methods of differential dilatometric analysis and by rnicrostructural methods of measuring of re- sistivity during heating. Four cross sections were constructed for constant As contents: 0.8, 1.4, 2.8, and 4.5%. As was above points Al and A3. At 1.751o As and S+d' regions unite. At 2.41o As the o~ and 6 regions unite. The temperature of the solidus drops' sharply with an iiic~rease in As content (by ZZO-3ZOO depending on C content.) The temperature Card 1/2 of the eutectic transformation L ~ + Fe3C with 4.556 As V E N N AUTHORS: Svechnikov, V.141. , Starod1jbo7, K.F, Kenbers of 32-12-71/71 fh-eAN Ukrainian SSR; Dymov, A.M., Yel'yanov, A.A., Chernikh,ov, Yu.A., Shchapov. N.P., Blanter, M.Ye. Professors TITLE: Lev SamLilovich Dlugach (Deceased) (Lev Samuylovich Dlugach). PERIODICAL- Zavodskaya Laboratoriya, 1957, Vol. 23, Nr 12, pp. 1527-1528 (USSR) ABSTRACT: The deceased is here praised as being the greatest promoter of the development and spreading of ~wuexz laboratories. He was born at Grodno on June 8, 1887; he finished his studies at the Polytechmic, Institute at Laningrad and emigrated tuo France soon later. In France he developed his activities as en~gineer for research aork in the metallurgical indust3:7 and in recent times he was head of a station for thermal research in a laboratory. At the outloreak of the Bolshe- vik revolutiou he returrned to Russia, where he worked at various metallurgical industrial plants in the USSR. From 1931 to 1941 he worked as professor at various universities in the USSR, and during the last years of his life he occupied the chair for the techr-ology of metals at the Electrotechnical In-9titute at Leningrad. As a re- Card 1/2 sult of the initilati-ve taken by him nwne.rous central laboratories SVECHNIKOV, V.11. ; KOCHERZHIIISKIY, Yu.A.: PAIT. V.M.; SHURIN, A.K. Investigating chromium-niobium-vanadium alloys. Isal. po zharopr. splav. 3:168--177 1 58? -4 (KRA 11:11) (Chromium-111obiura4vanadinm alloys -Met allograpb*) (Pbase rule and''equilibrium) akademik, doktor tekhn.nauk; TAROYCIRM, Yu.Ye., kand.tekhn. nauk Heat treatment and alloying of phosphorus steels. Izv. vys. ucheb. zave; chernemeto no,5:163-169 My- 158. (MIRA 11:7) l.AN USSR (for Svechnikov). 2.Kiyevskiv politekhnicheskiy institut. (Steel-Metallurgy) (Phosphorus) SVECHNIKOV, V-11., dolctor tekhn.nauk, akad.; GOLUBBY, S.S., doteent of carbon steel with high phosphorous content. Izv.vys.ucheb.zav-; chern.met. no.6;117-130 Je 158. (HIR& 12:8) 1. Kiyevskiy politekhnicheskiy institut. Rekomendovano kafedroy metallovedeniya Kiyevskogo politekhnicheskogo instituta. (Steel--Brittleneen) SOV/129-58-9-3/16 AUTHORS: Svechnij;qv,_X., N. Academician Ac.Sc. Ukr.SSR and sh, I. Kh., Engineer TITLE: Influence of hitrogen on the Tendency to Growth of the Austenitic Grain of Medium Carbon Phosphorous Steel (Vliyaniye azota na sklonnost' k rostu austenitno.-O zerna sredneuglerodistoy fosforistoy stali) PCiRIODICAL: Metallovedeniye i Obrabotka Metallov, 1958, Er 9, PP 15-19 + 2 plates (USSR) ABSTRACT: The authors are unaware of published information on the simultaneous influence of an increased con-uent of P and N on the grain size in medium carbon steel and changes in the grain size with the heatinG temperature. The work described in -this paper is a further development of earlier published work (Refs 1 and 2). The experiments viere effected on steel, the F content of which was higher than the respective P content of standard Bessemer rail steel for the purpose of detectinS more clearly the influence of P on the properties of steel and also for the purpose of studying the possibilities of increasinS the P content of such Card 1/7 steels. According to Riees and Hopkins (Ref 3) oxygen Influence of Nitrogen on the Tendency to Growth of the Aus~enitic Grain of Medium Carbon Phosphorous Steel chemical compo1tion of the investigated alloys is entered in a table, p 16. The heats weighing 33 to 35 k~~ were poured into two cast iron moulds; in one of these the metal was deoxidised with aluminium (500 g per ton), in the other the steel was not deoxidised. The conditions of smelting and pouring were equal in both cases. A third of the ingot was cut off and the remainin-, sound part of the casting was forged into a square rod with side lengths of 12 to 13 mm. All the rods were normalisation annealed under shop conditions at 9001C for 8hirty minutes. ThS specimens were heated at 800 to 1050 C with steps of 50 C each and PnnealinS times of 1.5 hours,followed by cooling in air. The grain size was determined under the microscope on the basis of the network of the excess ferrite. For expressing graphically the dependence of the grain size on the teuDerature, the method of differential counting of the grains was applied which was proposed by K.A.Malyshev (Ref The kinetics of grain growth for the investi- Card 3/7 gated alloys is expressed by a graph sum:aarisin6 the SOV129-58-9-3/16 Influence of -Nitrogen on the Tendency to Growth of the Austuenitic Grain of Medium Carbon Phosphorous Steel Card L~17 following three magnitudes: the average size of the coarse grains, the average size of the small grains and their percentual ratio in the area of the field of vision of the microscope. In Fig.1 the dependence is graphed of the grain size on the temperature for heats of various chemical compositions. The individual heats are designated by fractions in which the numerator is the serial number of -the heat and the denominator is the serial number of the ingot, whereby even numbers designate ingots which were deoxidised with aluminium and odd numbers designate ingots which were not deoxid- ised. The lower curves indicate the growth of the fine grains, whilst the higher curves indicate the growth of the coarse grains for both ingots as a function of the temperature. The influence of phosphorus on the grain size has not been studied in detail in tnis work, since it is known that P brings about an increase in the grain size of the austenite. Figs. 2 and 3 (plate) show the micro-structure of inGots deoxidised with aluminium after norlualisation annealing at various teldperatures. The SOV/129-58-9-3/16 Influence of Vitrogen on the Tendency to Growth of the Austenitic Grain of Medium Carbon Phosphorous Steel results of metallographic analysis are shovin in the Figures 4 and 5 (plate); in steel containing 0.025% N numerous clearly pronounced deformation lines can be seen in the ferrite, whilst in the case of a nitrogen content of 0.006% such lines can also be seen but they are less numerous. According to Chatterjea and Nijhawan (Ref 12),for aluminium contents exceeding 0.14% separation of an acicularly shaped component can be observed at grain boundaries and in the case of high aluminium contents there is a definite tendency to agglomeration. These authors (Ref 12) have proved conclusively that the acicular component is aluminium nitride. On reducing the aluminium content, the quantity of such nitride acicules decreases and then ceases to exist; in steels not containing aluminium, such separa- tions have not been detected. Chatterjea and Nijhawan (Ref 12) arrived at the conclusion that the solubility of nitrides in austenite and their agglomeration depends on the content of aluminium. in the Card 5/7 steel and this hypothesis enables better explanation of SOV/12~-58-9-3/16 Influence of Vitrogen on the Tendency to Growth of the Austenitic Grain of Medium Carbon Phosphorous Steel the relations governing the grain growth than obher existing hypotheses; the experimental data given in their paper appears sufficiently conclusive. The results were obtained on steel (containing 0.4% C, 0.6-0.?% Mn and 156 Al), the carbon content of which was near to that of the steel used in the experiments of the authors of this paper; the aluminium content was considerably higher. Furthermore, they applied nitriding instead of introducing nitrogen into the liquid steel. Due to this difference in the aluminium content and the sub- microscopic scale of the separations of aluminium nitrides') the authors of this paper could not count on detecting aluminium nitrides by micro-structural analysis and., thereforet there is no discrepancy between their results and the results of Chatterjea and Nijhavian (Ref 12). Kato et alii (Ref 13) also apparently (according to an abstract) did not detect a clearly Card 6/7 SVECHNIKOV, V-X-, akademik; TRUSH, I.Kh, inzh. Effect of nitrogen on the;,mechanical properties of medium carbon phosphorous steel. Iz-7. vys. ucheb. sav.; cherus met. no.12: 81-88 D 158. (MnA 22:3) l.Kiyevskiy politekhnicheskiy institut. 2.AN USSR (for Svechnikov). (Steel--3rittleness) (Gases in metals) (Nitrogen) SOV/126-6-3-17/32 V. N. and Yakovchuh Yu. Ye. TBORS: Svechnikov') TITLili: Influence -o=iosphorus and 11,ickel on the Cold Brittle- ries.,,-, of ILIedium Carbon Steel (Vliyaniye 'Losfora -J nikelya iua kh ladnolom!,Zost I sredi ieu,le rod is-Loy stali) PERIODICAL: Fizilca -'Metallov i Metalloved-E!niye, 1o53 , Vol 6, Nr 3, PP 505-511 (USSR) ABSTR-,'tCT: The investiSatione described in t"I'As paper represent a branch of the wo-r-11, caraAed out in- recent years in the laboratory of the authors relatfn;~ to col~,I biittleness of phosph-orous mediwa carbon steel. I. A. -Rinebolt and W. Y. Harris (Ref.4) published results of investigations of the separa-be influence of P and Ni on the cold brittleness of steel. However, as far as the authors Lire aviare/tll-ke simultan6ous influence of these elements has not been studied. IVrLheriaorel the influence of these elements o--.', the cold brittleness was studied predominantly orl carbon steels) usually not exceeding 0.21,166 and in no case exceeding 0.3%. Such linitation of the carbon content in the inve stir~-at ions is inadvisable since it was esLablished Uhat ,:,-ith IncreasinS carbon con.;ent the Card 1/6 unfavourable in-flueiice of P inci~eases and the favourable SOV/126-6-3-17/32 Influence of Phosphorus and Nickel on the Cold Brittleness of bledium Carbon Steel 2. was found about a decrease by 1.5 to 2.0 kSia/cm It v that for -the given P content the impact strength and its temperature dependence depends on the grain size of -the steel. P dissolves preferentially in the ferrite ~:,nd not in the austenite and does not influence appreciably the eutectoidal content of carbon. The micro-hardness of fei-rite increases continuously from 131 to 24-1 units if the P content is raised from 0.11 -to 1.42116. The influence of P on the cold brittle- ness cannot be explained solely by its influence on the grain size, it has also -to be explained from the point of view of its influence on the properties of the solid solution. The asswaption has been expressed that P influences the structure of the crystal lattice and brin-s about an ijacrease of the resistance to displacement at lower temperatures. The results of iiapact tests on steels conuaining 0.1,5% P and alloyed with various contents of CD Ni are entered in Table 2 and :' -raphea in Fig.2. The re-ults obtained with the three steels indicate that an Card 3/6 ircrease in tale Ni content brings about a progressive Ld SOV/126-6-3-17/32 Influence of Ph(;snhorus and IT ickel or, the Cold Brittleness of Aledium Carbon Steel brittle fracture, the authors investiSated the influence of 8eat treatment,consistinE of haBdening in -aater from 850 0 followed by tempering at 650 C for one hour, as a result of i!;hich a disperse uniformly distributed granular certientite -~~as obtained in a fine ~-r, ~, ain ferritic matrix. In FiE.6 the impact strenL,-th vs. -temperature curve is given for one of the tested steels in the initial normalised state,,as well as after the here mentioned heat treatment. it can be seen that the temperature of transition into the brittle state is not appreciably affected by such a heat treatment but the impact stren6th is 2 considegably improved ~y it ang increases to 3.6 kg/cm at +20 C and 1.8 kg/cm at -40 a as a result. It can, therefore 7 be concluded that the temperature of appearance of the first signs of brittle fracture and the temperature of the complete transformation of the steel into the brittle state are determined fundamentally by the properties of the ferrite, whilst 'Ube magnitude of -the impact strength in the tough state is limited by the quantity of pearlite in. the Card 5/6normal case and,, under special conditions, by the shape of SOV/126-6-4-!3/7,11 AUTHOR: Svechnikov, V.N., Shurin, A.K. TITIZ: Effect of Phosphorus and ArsGnia on tha Lattiiia Parg-meter and Hardness of cx. -Iron (Vliyaniye fos:Cora i ay,,~',iljaka na paramety Ixistallicheskoy reahat-k; -i t-%itrdc,st1 I allfa-zheleza) PERIODICAL:Fizika Metallov i Metallovedeni-ye, 1958, Vol 6v Nr 4, pp 662-664 (USSR) A.B.STRA.CT: High purity electrolytic iron was used for the preparation of the experim*ntal Fa--P and Fe-As alloys melted in vacuum (10"' ma HF,) in the f olme:r , axA ir. argon in the latter case. The alloying elemeants wer* introduced in the form of master alloys of uhe eutdctic composition (10.5% P or 3% As) prepa:nad 1)ry powdered metallur methods (sint*red in evacuated quaitz y ampoules5 . No losses of the alloying *lemants ocGured on smelting, and the carbon content of the A-P aad Fe-As alloys was 0.004 - 0.010% and 0.016 - 0.02C)l/lo Card 1/4 respectively. To remove the segregation effa,--ts the SOV/126-6-4-13/34 Ef fect of Phosphorus and Arsenic on -the lat-Uice Paramovor and Hardness of cy~ -Iron 45 and 10 hra at 400, 500, 650 and 810'0) From these ddta solid solubility of P and As in o(-iron at various temperatu7res Yras de,;ermined. The solid solubility curve of phosphoras in a, -irozi. ik shmn on Fig.3, that saiawing solubility of arsenic in cA, -ixoa is reproduced in another arbiele (Ref .12). Bo-,',-h phosphorus and arsenic were fourA to ini=ease hai-iness of ok -iron. The micro and macro-hardnAvas curms (graphs a and b) f or the Fe -P AnE F*- As Alloys are shown on Fig.4 and 5 rezpactivtl-y. The differance belp,ween ths values of rdero ?X.--L 'w'.aro-hardr-mas ax,1* at-11-Pributed to the faot that tho formr was detjrmined Card 3/4 SOV/126-6-5-14/43 AUTHORS: S _e~, li4Eev-z-v~N. and Yakovchuk Yu. Ye. Y I TITLE: Influence of Heat Treatment on the Structure and Cold Shortness of Phosphor Steel (Vliyaniye termicheskoy obrabotki na strukturu i khladnolomkost' fosforistoy stali) PERIODICAL: Fizika Metallov i Metallovedeniye, 1958, Vol 6, Vr 5, PP 849 - 857 (USSR) ABSTRACT: Two anomalies are encountered in medium carbon phosphorus- containing steel .. 1) the existence of two ferrites, one of which is enriched in P and appears in relief in micro- sections; 2) separation of cementite from pearlite, forming a structurally independent constituent if the P exceeds 0.15% (Refs 1, 2, 3). Svechnikov et a!. (Ref 1) expressed the desirability for a special heat treatment to be worked out which would bring about isolation of a considerable quantity of P in "relief" pearlite, thus lowering the temperature at which cold shortness sets in. The authors of this paper decided to explore the poss-i- bilities of such a heat treatment. First, the influence of P content on the temperatures of the Ael, A .3 and Acm points were investigated, the methods adopted being Cardl/5 based on the work of Oelsen (Ref 5). C and P behave SOV/126~-6-5-14/43 Influence of Heat Treatment on the Structure and bold Shortness of Phosphor Steel differently both qualitatively and quantitatively in cc and y-iron; they rapidly redistribute themselves during phase changes, P mainly concentrating in ferrite ahd 0 mainly in austenite. This non-uniformity in distribution remains after the phase changes are complete. Steels of various C and P content were tested dilatometrically at a heating and cooling rate of 3 C/min, excSpt in cases where the critical points were above 1 000 C orfnere the temperature of completion of dissolution of secondary cementite in hyper-eutectoid steels was used for deter- mining the critical points, when a micro-structural method was used. The results are shown in Fi ures 1 (heating) and 2 (cooling) in the form of graphs Mmperature against % 0) for steels of various P contents. Figure 3 shows the boundaries of the one-phase region of austenite in relation to P content for steels of constant C content. In Figure 4, experimental and theoretical curves for the beginning and completion of the a to y transformation on heating steels with a constant P content are shown. Card2/5 Figure 5 is a micro-pho to graph of 0.8%o 0, 0.3% P steel, SOV/126-6-5-14/43 Influence of Heat Treatment on the Structure and Cold Shortness of Phosphor Steel cooled fr8m the one-phase region of austenite and quenched from 850 C after 15 minutes' soaking. Martensite, cementite and ferrite are evident. The same alloy slowly cooled is shown in Figures 6 and 7. Here, the pearlite is surrounded by a network of ferrite within which again there is a network of cementite. The absence of phosphide in these micro-sections is probably due to redistribution of the dissolved phosphide between the a and y phases. In order to estimate the phosphide in ferrite, the micro- hardness was plotted against % P (see Figure 8) and f:?om this diagram the relief ferrite in steels containing 0.3 to 0.4011o C and 0.15% P was found to contain 0.25 to 0-70% P and that in 0.5 to 0.7% 0 steels, 1.2 to 1.5% P. The P content of the ferrite network containing the cefaent-ite network was 1.21 - 1.3%, which approaches ths solubility of P in a-iron at temperatures of 800 to 870 C at which the austenisation of steels containing 0.2 and 0.3% P is complete. A P content exceeding 0.05016 reduces the strength of steel. The reasons for this have remained Car43/5, obscure until recently. The authors of this paper, in an SOV/126-6-5-14/43 Influence of Heat Treatment on the Strucuure and Cold Shortness of Phosphor Steel effort to elucidate this problem, have carried out the following experiments: refined steel containing 0.4896 C, 0.1"r2o/o P, 0.228%o Si, 0.4WS Mn and 0.26% S was cast into small. ingots which were forged into rods. These in tnarn were cut into billets for making stgndard test pieces. The billets were normalised at 500 C and one half of them were made into test pieces for an impaQt test; the other half were heated to and soaked at 760 "'C for one hour a=d th8n air-cooled. Sharpy. impact tests were carried out at 0 C and various temperatures below. The results are given in a table and in Figure 9. The impact strength of the latter specimens is greater at all testing tempera- tures than that of the former. Their micro-structure is shown in Figure 10 and approaches that aimed at. The microhardness of the isolated islands of "relief" ferrite was found to be 210 kg/mm 2 that of the surrounding ordinary ferrite 135 kg/mm Such a hardness of "relief" ferrite suggests a P content of up to 1%. Cara'V5 SOV/126-6-5-14/43 Influence of Heat Treatment on the Structure and Cold Shortness of Phosphor Steel There are 10 figures, 1 table and 11 references, 8 of which are Soviet and 3 German. ASSOCIATION: Kiyevskiy politekhnj..cheskiy institut OUyev Polytechnical Institute) SUBMITTED: March 6, 1957 Card 5/5 18(7) PHASE I BOOK EXPLOITATION SOV/3355 Akadeslya naulC SSSR- Inatitut metallurgii. Nauchnyy,40vot p0 problems zharoprochnykh oplavov Isaledovanlya po zhiLroprochnym splavam, t. IV (Studies on Heat-.-,- sist"t Alloys, vol. 4). Moscow, Izd-vo AN SSSR, 1959. 400 P. Errata Blip Inserted. 2,200 copies printed. Ed. of Publishing House: V. A. Kllmov; Tech. Ed.: A. P. Guseva; Editorial Board: 1. P. Bardin, Academician; 0. V. Kurdyu=v, Academician; W. V. Ageyev, Corresponding Member, USSR Academy of Sciences; 1. A. Oding, 1. M. Pavlov, and 1. ?. Zudin, Candidate of Technical Sciences. PURPOSE: This book In Intended for metallurgists concerned with I the at ructurn I' metallurgy or alloys. COVERAGRa This Is a collection Of specialized studies of v aricus &t_ren bl in the structural metallurgy of he Intent alloys. Norsom &*Oro concerned with the-.')retical principles, Dome with des c -