SCIENTIFIC ABSTRACT DZHUPANOV, V.A. - DZYUBAN, A.D.

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December 31, 1967
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SCIENTIFIC ABSTRACT
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USSR UDC: 533.6-013-42 "Oscillations of Cylindrical Shells in a Fluid" Sb. tr. ZCosk. inzh.-stroit. in-t (-dorks of the Yoscow Engineerinp- Constructi,Qn 1-ris-lu-i-lu-ute--collectio-.a) No. 61, 1970, No. 2, pp EO-95 _P from IIZZh_-I',,7ekhanika. lio. 8, Aug 70, Abstract lio. 871349) ( Translation: 'Lh,-:- mutual effect ol~ the oscillations of two cylin- drical shells in an ildeal incompressible fluid Jo considered; it is assumed that the form of the oscillations is specil~ied the boundary coaditions for the velocity potential are writt-en from the impermeability conditions of the- floor o" the vessel and oll~ the shell surface, t4o smallnecs of the surface wavi~-s, and the ab- sence of wave sources at infinity. The velocity potential -for os- cillations of a. single shell is first written, and then, through superposition, the Dotential for two shells is obtained; the hydro- dynamic pressure; on the surface of the shells and the coefficients of the added masses ol~ fluid in the o.--*cillation of two rods are de- termined. Biblio---raphy of 13. P. I. Zhelludev 115 USSR UDC: 517.944 ,PZHUMXI-~Y ., Corresponding Member of the Academy of Sciences of the _,~A Tadzhik SSR, Department of Mathematics With Computing Center, AS TadzhSSR "Concerning a Case of Degeneration of a First-Order Elliptical System or a Plane" Dushanbe, Doklady Akademii Nauk TadzhSSR, Vol 15, No 11, 1972, PP 3-5 Abstract: The author considers a first-order systerm of partial differential elliptic equations in a region bounded on the left by a seement AD of the _Y axis and on the right by an are terminating at A and B and lying in the half- plane where x is positive. The system is elliptical for non-zero x. _--d degnerates on the line AB., which is a characteristic curve of the system. Theorems are derived on the iudex, the number of solutions of' the homogeneous problem, and condltioni3 of solvability in terms of the corijututc problem. USSP, 517.91-1; DZ-,IU-i,V.,'!-:V, A. "Singular Inte,~,ral- I-quations of the First and Seconj Ty,)C Witil RCSPCCt to a Bounded T%qO-DiMeIlSional Region" Moscow, Doklady Akadenii JTIUJ~ SSSR, Vol 203, 'No 4, 1972, pp 74-2-745 Abstract: A viethod of investigatin,-~ Um-dimensional singular inte3ral. cqua- I tions of the typo. was proposed earlier [A. Lznurayev, JDA:,, Vol 1.97. No 6, 1251, 1971.; Vol 19-3, No 1, 19711: + ly(z)w(z) + c(z)S(w) + + a, L, (7)T(w) + b (z)T((,)) = g(;-) 0 for the. case b(z) = c(,7) (Z) = Ij (Z) 0 0 = 0 II(Z)12 ~ 0, " G + Y and fr or the case b (z) = d (z) = 0, I'l (Z) I C 0 z w r e C. is a bounded region in cor..plex planc, z the bounf~a , rv of w'nich . I I finite nix-ber of C r is a single inte-1-jal operator, and T(~~) ff (C - L) 2 G (, - : 112 USSR MIC-P-MV, A., Doklady Akadc,-.7.ii Ilauk SSSR, Vol 203, No 4, 1972, T)p 742-745 A study has now been made of the general equatlon (1) under tlie conulitions 12 -,) - d( z) 0 , z(=- lb( 7' 6(Z) Ir A(Z) lb(,-) 12 IC(_)12 + JI(Z)~2)2 4 d (Z) b(Z)C(Z) 12 > 0, ZE Four theorems are proved regarding the properLies of sinF~nlnr inLeFr.11 equations of the firsr- and second types with respeCL to a bounded region. 2/2 USSR UDC 517.43 DZHURAYEV, A. "A Method of Studying Singular Integral Equations with Respect to a 3ounded Two-Dimensional Domain" Moscow, Doklady Akademii Nauk SSSR, Vol 197, No 6, 1971, pp 1251-1254 Abstract: A method of studying singular integral equations with respect to a bounded two-dimensional domain is proposed. Let G be a bounded domain in the complex plane z the boundary of which y comprises a finite number of noninter- secting closed curves of class Cl(O < a < 1). The author considers the sinEular integral a ;1 d C K (w) ~_ a (z) o) (z) + - g equation in G where-a(z), b(z), g(z) are given complex-valued functions of the class cl(G) C (G); G = G + y. Along with (1) the following equation is also investigated: b( W dG K* a G 1/2 DZHURAYE'V, A., Doklady Ak-ademii Nauk SSSR, Vol 197, No 6, 1971, pp 1251-1254 which is called conjugate to equation (1). The theory of equations (1), (2) is constructed in the case -for ;.hich tho conditio,-i )a (z) 1 --7'J> 0, Z IES violated. The proposed method of investigating equations (1), (2) in the case a (z) I - I b (z) I V 0 in 6 is based on the theory of boundary valoac probleris of type of conjugate generalized analytical functions. The established relation between the singular integral equations (1), (2) and the corresponding boundary valUe problems stated in this paper offers the possibility of obtaining exact numbers of solutions of the homogeneous equations (1) and (2) also in the case for which I a (t) b M I < 0 when t 'C_r_= 212 USSR UDC 539.181.1 GOL'DANSKIY, V. I., Corresponding Member of the USSF Acaderqr of -Sciences, DZHURA,YE.VA. A., YEVSEYEV, V. S., OB=OV, Yu. V., ROGADIOV, V. S., FRONTAWYEW, M. V., KHOLODOV, N. I., Institute of Chemical Physics, USSR Academy of Sciences "Atomic Capture of Negative Mesons in Compounds Containing Hydrogen" Moscow, Doklady Akademii Nauk SSSR, Vol 211, No 2, 11 Jul 73, pp 316-3J8 Abstract: An attempt is made to find possible underlying receularitfes in the distribution of negative muons between the individual groups Zyll I - n. ~ r~, and atoms Z' -in subsi,ituted hydrogen-containing organic coi,.ipounds and in hydrogen-containing compounds in general of the tYPe Ztr."InZ~ or 1MFVZkH,- Atable is given summarizing the relative probabilities of capture of Ii -mesons by hydrocarbon and hydrogen-containing groups and by aron.-atf-c- rings in compounds with ionic bonds, in alkyl chloridesand in phenyl halides. 53 - ........ ... p~ rtc ~c j, MIOGI K-T SO *c 'A PItf qfo USSR UDC 517.948-32/33 -,DZHURAYEV, A. D., Corresponding Member of Tadzhik SSR Academy of Sciences, Departme_n-C-577~rematics 1-lith the Computer Center of the Tadzhik 37SR Academy of Sciences "Solution of One Class of Characteristic Singular Inte.gral Equations on a Complex Plane" Dushanbe, Doklady Akadem-ii Nauk Tadzhikskoy SSR, Vol 14, No 4, 1971, PP 3-6 Abstract: The author first examines a singular integral equation (1) an:1 then in addition to (1) he writes another equation (2) inv--)lvj-nv the operators 3 and S*. He notes that the singular operators S 2nd 3; are adjoint in the metric sense. In satisfying the condition n2jaj +(- ~ G, the author seeks the solution of equations (1) and (2) from the lass JI (E) D 1, which for sufficiently large values of I zi satisfies the condittin I z1(`1+tjcj(z)j,6 conversion ................. 91 Fourth type of RP, (RPI~) 93 joint effect of different RP types ......... 102 Chapter High-temperature methods of plasticity determination .......... Blow-bending tests o ..................... o......... 105 Torsion test ........................... o ........ oo ... 107 4/11 - 13 USSR DZUGUTOV, M. YA., Plasticheskaya Deformatsi" Vvsokolegirovannykh Staley i Splavov, Izd-vo "Xetallurgiya_,_I_' 19i~', 4;24 Pp Tensile test of' specimens ............................ 110 Reliability 'degree of methods of plasticity determination ................ ............... ill Technological tests .................. 1.4 ............. 116 Chapter 5. Effect of various factors on the plasticity level of steels and alloys .............. Temperature (ft) ........*..... 119 Tes~ing rate (ft r) .................. ... . .... . 126 . . . ... . Purity of grain boundaries from readily fusible inclusions and elements (f ) .. 0 ... 0................ ' 136 The aggregate and the smeWing m thod ................ 144 Chemical composition (fch) and structural condition (fs,c) ............................................... 148 Anisotropy of plasticity properties at high temperatures ............ #-I .......................... 151 Chapter 6. O"tainle-os steels containing X -ferrite ........ Classification of two-Dhase steels .... # .............. 155 Determination of the X -ferrite amount in steel ...... 158 5111 USSR DZZUGUTOV, M. YA., Plasticheskaya. Deformatsiva Vysokolegirovannykh Staley i Splavov, Izd-vo "Metallurgiya," 1971, 424 p Effect of various technological factors on the amount of d'-ferrite in steel . ....... *..d ................. *. 167 Deformation of ingots and billets .................... 170 Features of technological properties of some two- Dhpse steels ......................................... 177 Chapter 7. Steels of the ferrite class ................... Structure and properties ............................. 196 Steels of the Kh25T type ............................. 200 Resistance of steels (alloys) containing chromium and aluminum ...... to ................ #0 201 Perritic structural steels ........................... 207 Chapter 8. High-SDeed steels ............................. Plasticity DrODerties of high-speed steels ........... 211 Carbide lialuation and properties of R18 steel ........ 217 Decrease of carbide liquation in the cast structure of R18 steel ........ 217 6/11 14 USSR DZUGUTOV, M. YA., Plasticheskaya Deformatsiya Vysokolegirovannyldi Staley i SDlavov, Izd-vo "Metallurgiya," 1971, T24-PP Effect of the deformation degree on the magnitude of carbide liauation ............................. 219 Effect of other deformation factors on the magnitude of carbide liauation ..... *I ............. I.......... 44 227 Optimum. dimensions of ingots designated for the production of sectional steel and forgings ........... 230 Deformability of ingots and billets .... I ... 231 E.zam-olary technology of heating and forging of large ingots and billets of R18 steel ...................... 235 Porging technology of washers ............... 242 Chai)ter 9. ProDerties and deformability of bodies of high-alloy non-aging steels and alloys ........ Structurally soft precision alloys ................... 243 Magnetic soft alloys , ............................. 243 Alloys vedth assigned coefficient of thermal expansion . .... 0.00 ................................ 251 Stools and alloys with olastic properlu-iao 253 Magnetic hard alloys of 520 type ............. 096. 257 7/11 USSR DZUGUTOV, M. YA., Plasticheskaya Deformatsiya Vy.9olcolegirovannyl-h Stal2X, i Splavov, Y-zd-vo "Motallur ya," 1971, 424 PP Stainless steels of increased strength 258 Copper alloyed stainless steels .............. 258 Stainless steels containinE boron ................. 265 .Stainless steels of increased strength ........... 272 Non-aging hard-to-deforn. nickel-base alloys 281 High scale-reasistant alloys ...... 0#.#.# .......... 281 High corrosion-resistant alloys ........... to ...... 287 ChaDter 10. Features of the structure-and technological properties of hard-to-deform aging steels and alloys ................................... Resistance to deformation .............. ...*4 ......... 29 5 Plasticity and temperature intervals of deformation to . 298 Cooling and local overheating in plastic deformation - 300 Formation of thermal cracks ................... 0 ...... 303 Thermal cracks and methods of preventing them ........ 308 DeveloDment of internal fissures in forging and roll- ing ................ 318 8/11 - 15 - USSR DZUGUTOV, M. YA., 'Plast-icheskaya Deformatsiva Vysolcolef;irovann- Staley___i Splavov, Izd-vo 'TIetallurgiya' 19TZ-44 -PP Develonment of boneath-the-crust porosity ............ 324 Types of reduced Dlastici-Ity (RP) ...... ............. 325 . .. ChaDter 11. The varigrained structure and methods of preventing it ....... 0....... ...** ............ Development mechanism of a vari rained structure in g alloys of the _-;'21_,[77TYuR type ...........I............ 329 Effect of the deformation degree on the final structure 2 ...... 0.6.f ... ....... Effect of the deformation temnerature on the final 33 structure ............................................ 336 Effect of the initial structiwal condition on the final structure 38 ............................ o ......... Prevention of the development of a large-grained 3 structure in the critically deformed zone ............ 3115 Elimination of the varigrained structure by over- critical deformAtion 349 ................ -o Chapter 12. Plasticity and deforinability of iric and u n billets of alloys of the second group . 9/11 Alloy 1dill- 77T YuR 51 . .......... 0.0.9 ...... ............. 3 USSR DT%JGUTOV, M. Y-A.., Pla-sticheska-ya Deformatsi,,ra Vvsokolegirovannyl--h Staley i SDlavov, Izd-vo I*Metallurgiya," 1971, ~,24 '0'0 Effect of residual deformation stresses on properties of the Kh'H77TYuR. alloy ................. 359 Elimination o'L carbide lines by forging of the .E12T77TYuTI alloy produced by the VDP nethod 361 Alloys IU-,T80TB-fu, JQ2,17.5MBTYu, Khn70Yu ................ 362 Steel ?N'T.35BT-fu .. .......... 0.0...0 ............. 0 .... 368 Steels --,Chl2l-!2OT3R ~T and Kh1271,22T31,M .............. ..... : 7 312 Chapter 13. Plasticity and deformability of in-lo-Lbs and billets of alloys of the third group ...... Alloy KhN70BMITYu . .................................... 375 Alloy 1'hN70MVTYuB .................................... 379 Alloys nf--T6TVI.,ITYu, 1q,1170113-ffuT, 190731-OTY-0 . .. .. .... .. .. 382 Chapter 11~. Plasticity and deformability of ingots and billets of alloys of the fourth group ........ Alloy 12L'-T70-,,rI-TTYu .................................... 388 Alloys JUIT-.'7,'MTYu and E1766 .......................... 390 Alloys and -2,.:hi-i56VMTYu .................... 397 10/11 - 16 - U3SR DZUGUTOV, M. Yh. , Plasticheskaya Defox-matsiya Vysoi-lo leg irovanny1di Staley i Splavov, Tzil-vo "Metallurgiya,7' 19,11, 424 pp ChaDter 15. Plast-icity and deformability of ingot-Is and billets of alloys of the fifth group Alloy E1611 ....... ............................. 399 Alloy 1qL7T621r1-EEYu .. ................................... 399 Alloy Yr1N55VMTP Pryu .................................. 403 Chapter 16, Improvement of the Droduction technology of high-Plloy steels and alloys ............. *.., Bibliography ........... ................................... 411 USSR uDc 621,73.01 STEEPANOY, V. P., and PiRONOVA, V. P. "Effect of Tent perature and Degree of Deformation on Grain Size and Grain Variety in KhN?7TYuP Alloy" Moscow, Kuznechro-Shtaiapovochnoye Proizvodstvo, No 2, Feb ?-8 Abstracts This article contains a stuJiy of grain size in the YJIN77TYuR alloy as a function of two basic techroloTical factors -- temperaturre and dev=ee of deformation. The experimental procedure iz :Iescribed arA the results are presented in the forn of granphs. and photographs. These results nrovide a bas-is for considerin- that in practice, for anv strzain. it is vcssible -11o obtain KhN77TYur alloy with a relatively uniform structure and o_ptira~l 6-ra-in size by selecting the deformation temperature. For degrees of deformation of about 1011o, the most favorable results are obt-ained when heating in the 0 C> 1,o6o-i,170 C range, for de,--ees of deformation of about 2r-r,;, in the 950- 0 1,170 C Ea_n6e, and fcr deg ees of deformation of about qCq/j heating in the 950-1,100 0 range. It, is pointed out that for approximately 25% deformantion, uniform fine-grained structure is obtained in a broad terrerature ran-e of 0 about -200 C. These are the most favorable degrees of deformation for the 112 USSR ~,44UG,UTOVj M. YA., et al, , Kuznechno-Sh' tantrovochnoye Proizvodstvo, No 21, ~~, Wa'. ~-'Z- 1~ Feb 71 epp 7-~& gIven alloy from the point of view of obtaining an optimal -finise structure, The experiments also confirmed the presence of two critical deforratioa zones -- at low and high degrees of deformation -- for the Khli77TYuR a1loy. 2/2 E0 7676 C S .0 -, I R /12- 67 - -USSR UDC 669.15'26-194 BIKEZIN K. P., LYUBINSKAYA, M. A., TOPILIN, V. V., ZIJBKO A. Z4. and DZUMOV, M. Ya. .C! ......... "Developing Production Techniques and Determining the Characteri.rtics of Low-Carbon Kh28-VI Steel" Moscow, Stal', No 2, Feb 71, pp 162-166 Abstract: This steel differs from the knaun Kh28 type by its especially low carbon content. While steels of high chromium content are known to be highly brittle at room temperature and are consequently limited in their application in objects operating under shock conditions, the low carbon 2 content of Kh-28VI steel provides a shock strength of more than 20 kg/cm with high resistance to corrosion. Its coefficient of thermal expansion is close to that of glass, so that it can be joined to that substance. Three techniques for obtaining iron with a carbon conLent of less than 0.01% had to be tested before the steel could be produced. Details of the process finally decided upon are given together with the steel's chemical composition, and the results of heat deformation tests are pre- sented. There is a table of the steel's mechanical qualities for different 1/2 - 48 USSR BIKEZIN, K. P., Stal', No 2, Feb 71, pp 162-166 variations of its carbon content and treatment. The metal is manufactured in a vacuum induction furnace using high-purity iron and electrolytic chromium. 2/2 USSR MATHEMATICS Numerical Inalysis USSR UDC 517.512+517.537+518.12 AZILDT& V..Kj Corresponding Member of the Academy of Sciences Ukrainian SQI'R, j___ __ institute of Mathematics, Academy of Sciences Ukrainian SSR "On an Extremal Problem" Kiev, Dopovidi Akademii Nauk Ukrainslkci RSR -- Seriya A. Fizyko-Tekhnichni ta Matematychni Nauky, No 3, Apr 73, pp 2GW9-300 Abstract: The existence and uniqueness of so-called factorized or 4~-extremal polynomials are entahl.ishel. Particular cases of such polynomials are Cheby- shev, Zolotarev) Akhiyezer polynomials, and trigonometric polynordals of the form cos (nt+ 0(), whereQN is a real number. Any algorith~i for the construc- tion of ~-exttremal polynomials which satisfy certain conditions makes it possible to find -- much more simply than hitherto -- the nunierical solution of the following problems: 1. The 14arkov-Bernstein problem of evaluating the mcdule of the deriva- tive of an algebraic and n trigonometric polynomial and the related problem of the generalization and effective construction of Zolotarev and Lk~iyezer PlAynomi.111.0. 1/2 2. The problem of the construction of poLynomiril,j whIch nre (,Lo:-(,, f,() USSR DZYADYK, V. K., Dopovidi AJ-ademii Nauk Ukrains1koi RSR -- Seriva A. Fizyko- Tekhnichni ta Matematychni Nauky, No 3, Apr 73, pp 299-1300 polynomials of best approximation. 3. The problem of the effective, uniform, polynomial approximation of functions which are analytic in a circle and continuous in a closed circle. 4. The problem of the study and effective uniform approximation of functions which conformally and uniquely map a circle onto a simply connected region with a rectified boundary and satisfy normalization conditions. In addition, such an algorithm makes possible a new and simple zolution of the problem of approximate interpolation on a segment by means of alge- braic and trigonometric polynomials. 2/2 USSR UDC 5116-27,546-78+5L~6.~9-1+546.28i,26i DZYADYMICH, 711. Y. "Investigation of the Interaction of Boron and Silicon Carbide with Twigs-ten and Titanium!' Moscov, Neorg-anicheskiye Materialy, Vol 10, No 1, Jan 74, pp 44-46 Abstracti Theointeraction. of boron fibers with atuangsten substrate was studied atU00 C with soUk times from one to 10 hours. The compatibility of boron and silicon carbide fibers with a Ti-matTix iias invz~stirzated at r-00- 13000 C with zoak times of i, Js 5, and LO hours. Investiration of boron' fibers showed that, after annealing, the lower tungsten borides disappeart starting ulth WB, then 1-1 2B, and after 10 hours of annealing at 1100'C, the fiber as a whole consists of WB,,, boron , and apparently, WD,2. Investiga- tion of silicon carbide fibers sbowed that, after annealing, there were ingigni- ficant changes in the fibers even after 0 hours at 12000 C. A boron fiber starts to interact with a Ti matrix at 9000 C; however after 10 hours the layers thickness of the intermediate phases does not exceed one micron, Above 11000 C a second layer develops having the form of a "solar crown." A silicon 1/2 - 13 - -USSR DZYADYM,VICH, YU. V., Neorganicheskiye I'Lateria1y, Vol 10, 110 1, Jan 74t pp IA-46 carbide fiber starts to interact with the matrix at 10000 C, and iii auuiulax zone is formed around the fiber. Upon investigating the kinetics of Inter- action of boron and silicon fibers with a titanitui matrix it uas established that the thickness of the diffusion layer, In the 900-1300 0 C interval-, increases by a parabolic law, whereupon the indicator n in the equation Xn , X, with increased temperature, increases from ono to four for the B-TI system and from two to five for SiC-Ti. By comparing -the nature of boron and silicon carbide fiber interaction with titaniumi it was possible to note 'the higher stability of SiC fibers with both the matrix and substrate. SIC coatings can be recommended as a diffusion barrier in the production of boron fibers. SIC fibers are suitable for reinforcing Ti-base composites for long- time operation at 1000 0 C and ahort-time service up to 1)00' C. spectral =Llysis wan mada by V. V. COMiNlY at the ln3tituto of Ifetal Phyl3ic-o, Academy of Sciences Ukrainina SJR. One figures, one bibliographic roforenco 2/2 USSR UDC 669-018.95 BURITINA, A. L., DZYADDAEVICK, _YU, T., GORSKIY, V. V., Tnstitute of Problems of Material Scienc-es, lkcademy of Sciences Tkrainian SSR and Institute of Metal Physics, Academy of Sciences Ukrainian SSR "Izvestigation of the Stability of B-TJ and SiG--Ti Co=pcEites During L-tended Vacuum Heating" Kiev, Foroslik-ova-va Metpllurgiya, No 9, Sep 73, pp 74-76 Abstract: The interactions of B-Ti and SiC-Ti composites vere studied at 9000C in a vacuum for periods extending up to as much as 3CO hours. For the tit-an-JU-7- boron fiber composite it was established that annealing for longer than rO ho... causes a diffusion zone to be formed with a thickness up to 5 microns, and, for a period longer than 100 hours, characteristic formations in the form of a "solar corona" appear in the structure of the layer. Data from micro-x-ray spectral analysis for a 300-hour anneal show that a rich-boron phase is form-ed which is very Close in COMDOSitiOn to TiB2- A silicon carbide fiber also reacts with the titanium mat-rix ai 9000C and 300 hours with the formation of two annular zcnes very c1cse in co-position and clon-e to the canposition of "i't"'caunitu-n. silicide Ti S1. At higher temperatures a phase rich with Silicon -- Ti is formed. 3 Pigures, 4 bibliographic references. 5 3 USSR UDC 669.018.95 BURYKINTA, A. L., _~~ZYADX~~U.,_Yu. V., and GORSKIY, V. V. , Institute of Problems of Material Science, Academy of Sciences Uk-rSSR, Institute of Physics of Metals, Academy of Sciences UkrSSR "Investigation of the Compatibility of Boron Fibers With Tungsten Substrate and Titanium Matrix" Kiev, Poroshkovaya Metallurgiya, No 11 (119), Nov 72, pp 48-53 Abstract: The reaction of boron fibers with a tungsten core was investigated at 1100*C and with a titanium matrix at 900, 1000, 1100, and 1300'C and 1, 3, 5, and 10 hrs of aging in a vacuum of 1.10-4 ram 11g. Metallographic methods, x-ray phase and x-ray microspectral analysis, and microhardness measurements were used for the investigation. It was established that the boron fiber reacts with the tungsten substrate at 11000C to form the higher tungsten borides I~IB4 and, probably, WB12. Boron fiber is stable in a titanium matrix up to 900'C; at higher temperatures, titanium borides T12B and TiB are forned as a result of unipolar diffusion of boron into titanium. A comparison of regults with, data of otlier autbur_~; indicates that in the componition boron fiber - titanium maLri7 ;it 900% a diffusion zone develops over a period of 100 firs whicli liar, the t~anie Lhlckne~,s as in 1/2 USSR BURYKINA, A. L., et al., Poroshkovaya 1-fetallurgiya, No 11 (119), Nov 72, pp 48-53 a nickel matrix at 700'C at the same heating duration. Four figures, one table, thirteen bibliographic references. 11 2/2 - 1.06 - 112 016 UNCLASSIFIED PROCESSING OATE--230CT70 TITLE--THEORY OF DISCLINATIONS IN LIQUID CRYSTALS -U- AUTHOR--OZYALOSHINSKIY1 I.YE. COUNTRY OF INFO--USSR SOURCE--ZHURNAL EKSPERIMENTALINOY I TEORETICHESKOY FIZIKIt 1970, VOL 58, NR 4f PP 1443-1452 DATE PUBLISHED ------- 70 SUBJECT AREAS--PHYSICS TOPIC TAGS--LIQUID CRYSTAL, CRYSTAL DEFECT, MOLFCULAR STRUCfURE CONTROL MARKING-NO PESTRICTIONS DOCUMENT CLASS--UNCLASSIF[ED PROXY REEL/f-RAME--1988/1497 STEP NO--Ut~/0056170/C)58/004/1443/1.t-52 CIRC ACCI-*S~10N N10--AP0106253 i i A CC! I f_* I E A 2/2 016 -UNCLASSIFIED PROCESSING DATE--230CT70 CIRC ACCESSION NO--AP0106253 ABSTRACT/EXTRACT--(U) GP-0- ABSTRACT. AINI EXACT THEORY OF DISCLINATIONS IN NEMATIC LIQUID CRYSTALS IS DEVELOPED WITHOUT ASSUMING EQUALITY OF THE CONSTANTS K SUB11 AND K SUB33 AS DONE IN THE THEORY OF OSEEIN (PRIME[) AND Fk ANCE ( P-~( 114E 2) .IT IS SHOWN THAT THE QUALI TAT[ VE PATTERN OF M9LECULAR ORIENTATION NEAR THE DISCLINATION IS PRESERVED 114 ALL CASES WITH THE EXCEPTION OF DISCLINATIONS POSSESSING A FRANC INDEX N E01JALS 2. A SHORT REVIEW OF THE 9SEt-N AND FRANC THEORY IS PRESENTED 144 THE INTRODUCTION. FACILITY: INST. TEORETICHESKOY FILIKI IM. L. D. LANDAU, AN SSSR. UNCLASSIFIED USSI i 5 2 2 DZYGALO, V. KONOVALOV, G. P. , INOZDUSEV, %% "I. SIi2ALLVOV, V. 1'. , --4, ~ 0.~ Instii:ute of Netaliurgy and EE-zirlichFiant, Academy , Sciences of the Kazakh SSR "A Piezoelectric Radiator" Moscow, Otkrytiya, Izobreteniya, Promyshlennyve Obrazcsv Tovarliv-0 ZV'I-.,`Ii., No 23, 1970, Author's Certif'icate No 276552, Filed 11 Nov 658, p -147 AbstracL: This author's certificate introduces a piezoelectric radiator wi-lich contains a P--ezoelectric element and electrode plates. As a distinguishing feature of the patent, the reliability is improved by making each of the wind- ings in the device in the form of a conductive layer of liquid which is iso- lated from the ambient medium by an acoustically transparent meii-jorane tightly connected to the piezoelectric element around the periphery. USSR UDC 669.71'721'782 GREBENK114, V. S., SWCHENKO, T. V., GORSHKOV, A. A. and Institute of Casting Problems, Acaderay of Sciences Ukrainian SSR "Effect of 'Magnesium on Tin and Lead Distribution in Aluminum-Silicon Alloys" Moscow, Metallovedeniye i termicheskaya obrabotka metallov, No 3, 1972, pp 50-54 Abstract: The impurities in secondary aluminum alloys include readily fusible and liquation-prone B-type elements such as Sn, 111), As, Sb (up to 0.1-0.2% of each) which appear to impair the mechanical properties of the alloys at both room and higher temperatures. Alkaline, alkali-earth, transition (Ti, Zr, V),and rare-earth elements form chemical compounds with the,0-type elements and under certain conditions neutralize their adverse effect in the alloys. This study involving Al-Si-Mg alloys with Sn and Pb additions to the Mg Si-type phase revealed appreciable amounts of Sn and Pb which had affected the phase composition and changed it to M82S'O. 300. 7 (b = Sn or Pb). In Al-Si-Cu-Mg alloys Pb and Sn act to hinder the formation of the quaternary phase W(AlxMg 5Cu4~'4 ) Wbile promoting the 112 U E~S' R GREBENKO', V. S., et al, 'eletallovedeniye i termicheskaya obraborka metallov, No 3, 1972, pp 50-54 formation of the Mg Si phase which also contains Cu, Sn and Ph. In Al-S.--Cu- 2 Mg alloys, Sn hinders while Pb promotes the formation of the CuAl 2 phase. There were no inclusions of free Sn in the Al-Si-Mg and Al-Si-Cu-Mg alloys. Despite the low contents in the chemical compounds, they appear to have combined Lhe 2ntire tin. The study shows that both Sn and Pb are electronic arialogs of Si. They are capable of substituting for Si in Mg 2Si or W(AlxMg5CU4Si4)-type magnesium compounds making it PO.",sible to neutralize the adverse effect of Sn and Pb in aluminum alloys. (I illustration, 3 tables, 14 bibliographic references). 2/2 USSR UDC: 539.4.o1q.i GFjiBili, V. F. GURVICH, S. M. , DLYKOT!R!O,. I. Ya. , V. and SABOKARI, V. K. "Characteristics of the Formation of Intermetallides in Titanium-Copper Joints Produced by Explosion Welding" Moscow, Fizika i Khimiya Obrabotki Materialov, no 6, 4,ov-Dcc 70, pp 65-69 Abstract: Use has been made of nicro-x-ray spectral ana-lysis to --tudy the conditions for the formation of intermetallides in the copper-titanium, contact zone in explosion welding. The role of niobiu-1 in eliminating the tendency to the formation of internetallides in the process of welding the 6-all.071(Ti-37%, Nb--3%, Al with M1 copper)is explained by the low diffusion mobility of niobium in the alloy which controls the formation rate of brittle phases. It is suggested that a higher content of niobilL-1 in the alloy will preclude the formation of intermetallides in the welded joint and raise the thermal stability of welded assemblies as well as widen the range of parameters of explosion welding. 1/1 USSR UDC: 6214791.011 GORDAN', G. K., DZYKOVICH, I. Yast MAKARA, A. M., MOSFJDZ, N. A., and SARZHEVSKIY, V. "High-Temperature Chemical Inhomogeneity in the Weld-Affected Zone" Moscow, Fizika i Klimiya Obrabotki Materialov, no 6, Nov-Dee 70, pp 114- 119 Abstract: An analysis is presented of regularities in the developi-I.-ent of high-temperature chemical microinhomogeneities on heating specimens of heat- resistant steels. The heating was carried out in welding thermal cycles to temperatures observed in the weld-affected zone of real welds. The steels involved were 30KhGSNAO 42Kh2GSVMA, 28Kh3SN~IWA 9and others, The specimens measured 5 x 5 mm, The magnitude of the chemipal inhomogeneity formed on high-temperature heating of rolled steels-. the inhomageneity of the weld-affected zone of real welds appear to be comparable to that of a dendritic inhomogeneity wbich generally develops in the cr"Istallization of welds and ingots of a sijnilar composition. The formation of a chemical inhomogeneity along the grain boundaries on high-temperature heating of ateelseand the redistribution and the chanzy gee iii ttte shape of the nonmetallic 112 USSR GORDAN't G. N., et al, Fizika i Xhimiya Obrabotki Materialov, no 6. Nov~Dec 70, pp !14~119 inclusions have an adverse effect on the properties of the weld-affected area adjoining the weld promoting the generation and propagation of micro cracks, USSR UDC 61~1.791.856.3:669.15-194:546.621 RYABOV, V. R. , YUZMTOVA, V. I. GRABIN,, V. BUT?,M,) A. P. , ._DZYKOVICII, I. Yq,, KUZNETSOV, Ye. P., and BELOZEROV, L. F., institute of Electric 'Tel Tng imeni Yet o. Paton "Effect of Nickel and Chromium in Steel on the Characteristics of Alloy Combinations" Kiev, Avtomaticheskaya Svarka, No 2, Feb 71, pp 18-23 Abstract: An investigation was made of the effect of additions of nickel and chromiLLm to Armco iron on the characteristics of the diffusion layer which appears during calorization. The dependence of the durability of steel-aluminum alloys on the additions contained in the steel was also studied. The nickel and chromium alloys with steel ~,.rere prepared in an induction furnace with a capacity of 7.kg, and the ingotS Obtained were annealed at 1100-1200% for three hourn. They were then roiled into plates measuring 220 x 1200 x 3 mm. After slat, remf.,)val, the specimens were calorized in an aluminum bath and cleaned. Tests were made of welds of experimental alloys prepared in the OSV-2 auto-natic welder, and the phases of the layers formed during calorization and welding were studied 1/2 - 65 - USSR RMOV, V. R., et al, Avtcmaticheskaya Svarka, NO 2, Feb 71, pp 18-23 by X-ray analaysis. The introduction of nickel and chrouium. vian found to delay the growth of the calorized diffusion layer. 2/2 Acc. Nr. Abstracting Serv4ce: NV046014- CHEMICAL ABST-.4--76 Ref. Code -LkfZ 0 0 9 r 70540m Water system of branch sta [of electric power plantal. Kostrikin. Yu- M.. -IkA A.; Tobo eva, A.D. T Y~ 1.1inx 1. (~se�. eolot~~11, Inst.. Moscow.- 'Tepioen"getlka 1970, 17(l), 74-5 (Russ). The che . and spectral.anal. of the deposits formed in the flow regi( he turbine- was carriedout. The main components of -the deposits are compds. of Si, Al, Fe, and 'Loa lesser extent.NLa and Cu. Thecontentof Fe, Si, and Al oxides is usually tens of percents while Cu oc- casionally reaches also >10%. The Cu and Zu enter the water system by the corrosion of the low pressure preheater tubes. The NTa is probably derived from the aging of the anion-ex- changer units.. The Fe content is directly assocd. with.the no. of on-off switching events. TheSi02and A1,03are transported by the soln. in the high-pressure'steam. Preventive me=& are outlined to minimize the amt. of deposits. M. Shelef REEL/FRAME 1974142,26f I I I H., M - --fifl., 6111 Ilicroelectronics USSR uDc: 621.3.o4g.75 GALINOVSKIY, A. !. , DZYUBAK,,,, E'.. -J. "A Connector for Printed Circuit Boards" Moscow, Otkrytiya, izobreteniya, promyshlennyye obraztsy, tovan-iyye znaki, No 6, Feb 71, Author's Certificate No 294270, Division H, filed 15 Apr 68, published 26 Jan 71, p 181 Translation: T"his Author's Certificate introduces a connector for a Urinted circuit board. The unit contains an insulated base wi-th two rows of Allat contact springs arranged in parallel. Ass a distinguishing feanture of the patent, the operational reliability of the connector is irmnroved by fitting the insulated base with two camshafts which are parallel and interconnected by a common drive mechanism. The contact springs of the connector rest on the carr on these shafts. USSR UDC 632.95 PROTOPOPOVA, G. V., REYDALOVA, L. I., ZZY N ITOLYAVKO, L. I., DOROSH- ENKO, V. V., MKHAYLYUCHENKO, N. K., SHOKOL, V. A., DERKACH, G. I. "Insecticidal Activity of Esters of bis-(3-a--ylcarbamido) phosphoric and thiophosphoric Acids" Fiziol. aktivn. veshchestva. Resp. mezhved. sb. (Physiologically Active Materials. Republic Interdepartmental Collection), 1972, vyp. 4, pp 9-11 (from RZH-Khimiya, No 5 (11), 1973, Abstract No 5N579) Translation: A study was made of the insecticidal activity of esters with the formula ROP-(X)(NHCOi'iHR)2 W (X = 0 or S; R = alkyl, aryl; R, = Ph, C6H4SCN-?r, a-pyrldyl) for rice weevils, housefly larvae and imago and greenbugs. The I containing the SCN-group have the highest insecticidal activity, and among them the activity rises on going from the methyl to the propyl and isopropyl radicals. 1/1 Pe ticides USSR UDC 632.95 PROTOPOPOVA, G. V., DZYUBAN, A..D., RFYDALOVA, L. I., GUOLIK, C. A., and SHOKOL, V. A. "Insecticidal and Acariasicidal Properties of the Esters of Phosphazo- methylphosphoaic Acid" Fiziol. aktivn. veshchestva. Resp. mezhved. sb. (Physiological Effects of Compounds, Republic Interscience Symposium), Vyp 4, 1972, pp 11-13 (from Referativnyy Zhurnal -- Khimiya, No 4(11), 1973, Abstract No 4N603 by T. A. Belyayeva) Translation: The esters Eof phospha zome thylph os phonic acid under laboratory conditions demonstrate insecticidal and acariasicidal. properties of a contact and systemic nature. Of the compounds studied, MeP(O)(OE0N=P(OisoPr)3 compound 1) showed the strongest contact effect -- SK50 = 1.78 In 3 days for rice weevils and 0.39 for grain aphids. Contact insecticidal activity was increased by using iso-Pr in the trialkoxyphosphazo group. Comp. I in a P.05% concentration results in 96% mortality of the mite Tetranychus urtical on the second day. 1/1