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'.,ACCESSION NR: AP4025935 S/0056/64/046/003/1033/10318 AUTHOR: Sh~~kpp L. A. symmetry of the Clebsch-G6rdan coefficients Zhurnal eksperimentallnoy i teoreticheskoy 1964, 1033-1038 TOPIC TAGS: Clebsch-Gordan coefficient, Clebsch-Gordan coefficient synunetry, angular momentum tbeo:cy, R symbol, Regge invariant not;a- tion, Regge symnetry transfo=a-,:ion, Racah coefficient, transforma- tion matrix, orthogonality relation ABSTRACT: Some consequences of the now symmetry of the Clebsch- Gordan coefficients, discovered by Regge (Nuovo Cimento 10, 544, 19~8) are considered.:, All the for=llas of the theory of angular' momentum are written in invariant form as relations between R-symbo*- This (Regge-invariant) way of writing-automatically includes all the bard 1ACCESSION NR: AP4025935 consequences of the new symmetry rules. By carrying out the Regge 1symmetry transformation, a whole series of new relations is cb- tained between the Clibsch-Gordan 6oefficients, the Racah coeffi- cients, and the transformation matrices. Some examples of these new formulas are orthogonality relitions and recursion formulas for the Clebsch-Gordan and.Racah coefficients. The Racah coefficients that depend on projections are coniidered in particular. A graphi- cal interpretation of the Regge symmetry is given by means of a trilinear plot.. It is pointed ait that the Rogge symmetry rules are of great importance not only for specific now formulas but primarily* from the point of view of general theoretical problems, &nd its consequences have not yet been e:Kbausted. Orig. art. has: 3 figures and 19 formulas. ASSOCIATION: FizicheakiyInstitut im. P. N. Lobodeva AN BBSR (Phy-, isics Institute, AN SSSR) Card 2 M L 27856-65 ARG/FM-2/EWG(-.J- )__/A_W_A__(_ i-V DR ~_d _M(l~YJW-7-2/5 (01WOLUP Q_/ a.' 2YZD/F :e) v)-~/EP~k('sp)-2/EEC(k).-2/9%r,(a 41P(r" iPi/EPA(W)-~/_ (k)/EWP(h)/tk(bb)-2 EEC (t)/T/EWG(a)/EWP j8ZVPdjWPab IjP W - -A SS N N lo/pA~P-YCOPOC)~V4p5acw-G/Bv/TT/wi/ 7/0 6"Ij R: 'jT/6r,S/0293/65/063/00l/0l6 -1 AUTHOR: Gudzenko, L. I.; Shq1epin; L. A. 1 TITLE: Use of a plasma laser as an engine for a photon rocket ISOURCE: Kosmic eskiye Inaledovani.ya, v. 3,.no. 1 9 6 5"j, 167-168 !TOPIC TAGS: photon rocket,,plasmit laser, laser propulsion, photon iengine, plasma amplifie'r, hydrogen plasma laser JABSTRACT: The proposed rocket,'ictended for Laterplanetar3t sRace___ -7, flistht at relativistic velocities, calls.-for a comparatively low_power.~;,~'i_~.. atum Ilaser whose emission would providc, after amplifLcatLon,Ln a qua 11--,!~,'_r, f !amplifier with a sufficiently higb. gain, the unidirectional stream o, !photons necessary to achieve thrug.t. A plasma la.ser without feedback .: (i.e., mirrorless) described by.l.. 1. Gudzenko and L. A. 'Shelepin (ZhETFt 45, 1445, 1963) can b used as the 'amplifier. The, dimensL4is1.'__`1~.`1*' iof the amplifier can be Comparatively small. The gain k in the in_;~ tensity of the photon current is sm. exponential function of the ef-~ fective length of the amplifier t and the lintfr gaLn-ofitho Lv'6 P medium xg iseog k exp(XI)a Thuej:at k 10 .and-n -~0*1 Card I/Z. ;_77 -A. or Lnruzc xrom UUC gXUUI UL SAYMICU5CII PALUDW& 45 MU "GLAVC MUUJLUM & 4 am- !Computed an 10 kg. The authors suggest that the use of cplasm: ~plifier would circumvent many problems associated with the development.-.~..~:~..'._.',~ tof photon rockets. However, one dl,ffLculty,,,namely that of the con- !struction of a sufficiently light and powerful source~(of the order- iof millions of kilowatts) is not likely to beaver~ome a tthe p resen t Orig. art. has% I foi-mulaii CMI ASSOCIATIONI none SUBHITTED:. 12Feb64 19 N C16 100 No REF SOVt 002 OTHER 00 D'I Card. 2 2 1 31956-65.- ACCMIOff 00, NRt AP5004412 . E m in: e set at to studies of fractional parentagelcoeffie4eas -vhlch case i- N, epoplat Vantun numbers can be enumerated in terswi of ZcceWr SUn gro s* Origi, art.. 23 formulas. t Fizicheskiy- instiftb im* P. N.'. -Akadeiii nauk OBW ASSWIMON Lebids"' Acsdmq~ of Sciences: justitute j, IMA 1 WRCM2 18JU164 00 11M M NVI Ow O&M: 0(0 %! _ 6 ............ Al Card 2/2 -7 ,c ~ I i.' Inc). 113!4) GIII", , 1 . i . ; :;H;,~; !T-11 , i..A. Aim P1 If -, c~- t i c'n, Ln a vc,, m !, ion pla . F~o~ I. A I I SOSS P 160 no. 6: k - _j, 18:2) 129i'l-12c)9 F "i,5. ( ~%j T:~ i. Fi,~;~!~lifjsklv institul, im, 1I.N. Lobf,,.ieva AN "'l,'11SR. Submitted Sep- t e, mb e ~, - 18 . 1. y EVP~t') /T/LTWTI~t)/j~ qb A& S&ION-ft: ~h/pr-4/r~-L,/Peb/Pl-4 S/ IJP(c) WG/'J r AUTHOR: Gudzenko, L. I.; Shelepin, L. V 9s, TITLE: Amplification in a plasma as a result of recombination SOURCE: AN SSSR. Doklady, v. 160, no. 6., 1965, 1296-1299 TOPIC TAGS: laser, plasma laser, plasma,:,population Inversion, hZdr2~ezj ~laser -occurring.during t ABSTRACT: A qualitative analyses is maae'of processes he decay -optically thin hydrogen,p asma with an inverted of highly ionized population. ~ The following three stages in plasma are considered.: 1) stronglyionized plasma with instantaneously cooled free electrons, wh(in the lower levels are practically un populated; 2) considerably ionized plasma., in *hich a~ equilibrium relaxation rate from overpopulated upper levels is establJ,shed; and 3) weakly ionized plasma. On the basis of an equation for the rate of population change,-a general relaxation scheme is discussed for plasma with an electron concentration between 1013 and 1016 cm73 and free electron temperatures hTe atO.1-0.5 ev. The relaxation time T for the first stage was estimated to be 10-8_10-7 sec. The average number of electrons populating levels with the prineipal quantum number n c: 21- 3 s 4 95, 6 during the second stage was calculated foil Ke 0.1, 0.2, 0.3,.and 0A ev and for ~L P336- ACCMSION NR: AP500765T 4- 1013 free electron densities of 1012 10" and 1015 cm-3. The coefficients of , , 4~ M: m absorption corresponding to transitions n (n,= 2, 5) were-calculated for.. the first and second stages, and it was shdvn.-that population inv6rsion* sufficient for laser action is maintained throughout thewhole 6econd,stage (T7 --- 10--5 sec). It is pointed out that various effects not taken into account may become dominant- during the third stage. These effects, suc h-as th e.increased importance of meta--~ stable-states, complicate the analysis of relaxation processes during the third stage. However, in contrast * to the first two stagesi it is relatively easy to maintain a stationary population inversion luring the third stage. Because of the!' asma I linear Stark effect, hydrogen is not consi&ared to be the best medium for a pi laser. The heating and cooling of free ele-Arons ins. gaseous,-discharge is also discussed. Orig. art. has- 3 formulas and I table. (cS1 .ASSOCIATION-. Fizicheskiy institut im, P. N.- Le-bed6va Akademi naiA SSSYVO~hysics- Institute,,Academy of Sciences) SSSR) - SUBMITTED, 03Sep64 -ENCL:, 00 ~SUB CODE: .NO REF SOV, 003 OTHER:. 004 ATD PRESS 3219'____, ~,~-, Ep EWP E14 L 2091-66 TWA (k)/F]3D/EWT (1)/EEC (k)-2,/ETC;/EPF (n)-2/EWG (m)/ A(w)-2/T/ (k)/ ~.. A( MA(m)-F SCTB/IJP(c) WG/AT. ACCESSION HR: AP5024901 tffl/0382/65/000/003i66~4/oo56. "-'11* 0 533-9. :621*3T 19, kolesnikqvi V. N.; Sobolevg N. N.(, Sheleein.-"� !AUTHOR.- Gudzenko, L. I.; zed plasm"i rrfabrication of a laser !TITLE: Use of highly ioni :SOURCE: Magnitnaya gidrodinamika, no. 3, 1965, 54-56 ITOPIC TAGS: plasms,,laser, plasma laser, magnetohydrodynamics, energy conversion a] ;ABSTRACT: The sudden cooling of the free electrons of a highly ionized low-temper -ture plasma (a condition necessary foi- the attainment of laser action in such a me !dium) is discussed. Two methods are proposed: cooling the walls of the container ;and the use of heavy particles (ions ar.d. meutral-atoms.df the plasma)*to cool the !free electrons. The second 'method is eliscussed in detail. In utilizing heavy par- :tic,les for cooling,two conditions muf;t be satisfied: 1) The electronic temperat ej... Must be significantly greater than the temperature of the heavy particles (T >> T) e 'The temperature Te must be close to the temperature of the almost totally singly Unized gas, and the temperatures T, to the final coohng temperature of free elec-. 'trons; and 2) the specific heat of the elections must be significantly smaller than 'that of the heavy particles (Ce n 3 where N - complete number of (free, and bound) elettrons per cm., Ne - density of fre6 electrons, Nn - density of electrons woth principal quantum number n. A(n,m)dt and A (n)dt are the spont aneous transition pnobabilities, radiative and recombinative, Card -UDC-5 3 3-.9-Q1i62 1,,318 L 11~226-66 ACC NR: AP5024902 level n, during time dt; V(n,m) corresponds to non-radiative transitions n m, and B(n) - to collision ionization and recombination. Three stages of plasma collapse or relaxation are discussed: 1) highly ionized plasma with "instanteneously" cooled elec trons 2) substantially ionized plasma with a "stationary dowmflow" from overpopulated levels and 3) weakly ionized plasma. The second stage is investigated quantitatively, using the results of computer-calculated population pirameters governed by equations (1); and upper-lialf-levels electron distribution Nn - (2); and the negative absorptioi coefficient (3). An evaluation of 5 2 shows sufficient amplification to expect feasi. bility of laser activity (lasing) fof stages one and two. It is also proposed that plasma lasing may occur in stellar atmospheres where -large distances enhance the ampl: fication effect. Authors thank A,T, Matachun for assistance in numerical computations and A.M. Procharov, I.I. Sobelman and N.N. Sobolev for numerous discussions., has 1 table, 3 formulas. n2N~2 2n-li )3"exp(Ell s%n.m2 n (2) A (it, in) (Nn-N,). (3) ntkT, 4 1 n SUB COD4: 20. SUBM DATE:, IOAug64/ ORIG REF: 003 OTH REF: 006 ACC NR, AP603-6-054 SOURCE 'CODI~:---Ui'i/0056/'-6/051/004/1-115/1-119 ALMMOR: Gud-- onko , L. _ 1. Filippov, S. S. , Shelepin L. A. ORG: Phy*ico -institute i-m. P.__ N.- Lebade--r.-Acadewy of Sciences SSSR (Fizicheskiy j*Utademii nauk SSOR) A. TITLL: Rapidly recombining plasma jets SOURCE: Zhurnal ek6perimentallnoy i teoreticheskoy fiziki, v- 51, no. 4, 1966, 1115- 1119 TOPIC TAGS: plasmoid. ionized plasma, pLasma decays plasma jet, adiabatic process,,.- d3STRACT: The authors consider a plasm _Le~_ containing atoms or ions with several discrete levels, the populations of which are much smaller than those given by the Saha formula for a given free-electron density and temperature. They show that a plasma jet of this kind can be used to obtain a relatively dense gas stream with un- populated lower levels. This is done by making use of the rapid recombination that takes place when the plasma is initially highly ionized and the temperature of the free electrons is abruptly reduced. In this case the populations in the lower levels cannot follow the transitions of the electrons to the upper discrete levels and the resultant nonequilibrium situation (if the free electrons are cooled rapidly enough) can lead to population inversion, thus making it possible: to use this gas in a laser 1/2 ACC NR: AP6036o-04 1confiGuration. This calls for cooling the plasma within a time 10-7 __ 10-0 sec from 5 x 103 to 103 K at a free-electron density 101" -- 3 x 1015 cm-3. In the case of an tLrmagnetized plasma, analysis shows that, in view of the difficulty of three- dimensional expansion into vacuum under laboratory conditions, any practical utiliza- tion of adiabatic cooling for the purpose of producing a large amount of hydrogen with a nonequilibrium population inversion irt the atomic levels is hardly realizable. In the case of a maGnetized plasma, it is chown that by freezing-in a strong magnetic field in the plasma it is possible to increase greatly the initial plasma pressure and thus intensify the cooling accompanying the expansion into vacuum. However, the re- quired rapid displacement of a strong magneflic field still makes such a procedure dif- ficult. A proposed means of overcoming the difficulty is to produce a device in which a high-velocity magnetized jet of fully ionized hydrogen is introduced into a vacuum with a magnetic field that falls off with distance. Theoretical estimates of the initial-plazma density required for thi:3 purpose and possible means of accomplishing a sufficiently rapid decrease of the ma.~;netic field are discussed. The authors thank V. S. Kome;,Ikov, jj._;~._2g2~gament, �~, B n S. I. Syro tskiy. and S. S. Serevitinov for a discussions Orig. ar~. hast 5 f-or-mulas. I SUB CODE: 20/ SUBM DATE: 05Mar66/ ORIG BEF: 0051 OTH REF: 001/ ATD PRESS: 5106 2 ACC INIR: A?7000050' SOURCE CODE: UR/0207/66/000/005/0115/0117 AUTHOR: Gordiyets, B. F. (Xoscow); Gudzenko, L. I. (Moscow);_Shelepin, L. A. (Moscow) .ORG: Physics Institute im. P. N. Lebedev, AN SSSR (Fizicheskiy institut AN SSSR) TITLE: Amplificacion of radiation durin,; the decay of extremely ionized plasma SOURCE: Zhurnal prikladnoy mekhaniki i tekhnicheskoy fiziki, no. 5, 1966, 115-117 TOPIC TAGS: plasma decay, ionized plasma, plasma electromagnetic wave, plasma - radiation !ABSTRACT: An investigation was made of the possibility of amplifying electromagnetic .radiation at frequencies of the atomic spectrum in plasma undergoing pulse recombina- ~tion. Since the rapid decay of plasma causes an inversion in level population, it is I Isimpler to analyze the population distribution over discrete levels in ions of d ecaying, :plasma in which the majority of heavy partLcles are bare atomic nuclei of one of the I ielements (HI, He++, Li++, etc.). In addition to investigating the relaxation of i1hydrogen-like ions, an analysis is also made of the population in atoms of alkali .metals or alkali-like ions during the decay of their plasma. Numerical data are used !in an evaluation of the amplifying properties of the decaying plasma of a chemical ~nsities of :,element with the atomic number Z. It is shown that at comparatively high dc 1free electrons N there is a region of optimum temperatures at which the absolute I. . e ,inversion acquires the maximum value. Rapidly decaying plasma, which results in in- Card ACC NR-- AP7000056 version of the level population, can also be obtained by other methods. e.g., by isothermal compression. Orig. art. has: 1 formula and 1 figure. JWA-71] SUB CODE: 20/ SUBM DATE: 10jun66/ ORIG REF: 003/ OTH REF: 003/ T 442~ ACC AP6020224 SOURCr, CODE: TJR/0056/66/0,50/006/1666/1673 AUTHOR: Shelepin, L. A. ORG: Physics Institute im. P. N. Lebedev, AN SSSR (Fizicheskiy institut AN SSSR) TITLE: Theory of the Clebsch-Gordan coefficients for the SUn groups SOURCE: Zh eksper i teor fiz, v. 50, no. 6, 1966, 1666-1673 TOPIC TAGS: matrix function, atomic spectroscopy, nuclear spectroscopy ABSTRACT: A theory of the Clebsch-Gordan coefficients for SUn groups has been developed. The theory is based on the method of generating invariants proposed by the author. It has been shown that the Clebsch-Gordan coefficients of the SUn groups and the corresponding Racah coefficients and other transformation matrixes for atomic and nuclear spectroscopy have been reduced to a set of n x n symbols introduced earlier (L. A. Shelepin, ZhETF, 48, 360, 1965). Expressions 1/2 ACC NR: AP6020224 On C-1~1 .iLcvi~ bt-n pi-s-tit(A for !he Wagnor effici r I o f.T n r1 StT 4 grolipa ind for tile Racah coefficient of the SU group. The method proposed bytheauthorsimplifies 3 the Clebsch-Gordan coefficients of the SU group. Orig. art. has: 25 formulas. 2 [Based on author' s abstract) [NT] SUB CODE: 20 SUBM DATE: 25.Jan66/ ORIG REF: 006/ 'OTH REF: 0021 Card 2/2 sdi;lP III .; PETROV, N.N. Semiautomatic control stations in oil fields. Neftianik 1 no.9:31 S 156. (KLRA 9:11) 1. Glavnyy inzhener Nefte-:)rouqslovogo upravlentya Kalgobekneft' for Shelepin). 2. Glavnyy energetick Neftepromyslovogo upravleniya Kalgobekneft' (for Petrov). (Oil fields-Equipment and supplies) (Automatic control) X-~LN.; FAUK. M.Ya.; FUlfrIKCV V.Z.; VARLAMOV S.S.; SLINIKO, A.G.; -SA;4RI 3P P TOIUNOVY V.K.; ZAGNIYEV, V.M. Saving of power in a compr-essor station. Prom.energ. 17 no.7:6 ,ja 162. (MPA 15:7) (Compressed air) (Compressors) 5 (3) AUTHORS: Zhdanov, Yu. A., Shelepin, 0. Ye. SOV/153-2-2-10/31 TITLE: Complex Compounds in the Series of Perinaphthindene (Kompleksnyye soyedineniya v ryadu perinaftindena) PERIODICAL: Izvestiya Yysshikh u(:hebnykh zavedeniy. Khimiya i khimicheskaya tekhnologiya, 1959~ 'fol 2, Nr 2, pp 200 - 203 (USSR) ABSTRACT: Perinaphthindenone (I), like several other cyclic polynuclear ketones, forms molecular compounds with metal halides (Refs 1, 2,4). The authors succeeded in finding that 2-bromine peri- naphthindenone-1 (II) forms firm nuclear compounds with strong aprotonic acids (SbC1 52 SnCl4). 2-J-perinaphthindenone-1 (III) forms an analogous complex with tin tetrachloride. C.,H-OBr. .SbCl I were isolated. In 5; (Cl3ll7B-r)2-.';nC'4; (C13H7OJ)2'SnCl4 their crystalline state all complexes have precise melting tem- peratures and are easily soluble in CH COOH, in alcohol and in 3 dioxane, but not eaaily soluble in ether and benzene; Their sol- ubility in petroleum ether is poor. When boiled in water, the hydrolysis destroys them completely, and they are completely Card 1/2 hydrolyzed when boiled with water ammonia and weak acids (Ref Complex Compounds in the Series ot Perinaphthindene SOV/1,53-2-2-10/31 2). Perinaphthindenone hydrazone (IV) (Ref 3) also forms stable complex compounds metal halides. They are all soluble in pyridine and dioxane, but their solubility in alcohol is poor. Hydrazone is regenerated with their hydrolysis. A stable com- plex is deyeloped by a sublimate solution in absolute ether. Salts of bivalent mercury normally oxidize hydrazones down to diazone ethane derivatives (Ref 7). If mercury salts are su- perfluous, nitrogen separates and organic mercury compounds develop (Ref 8). In the experimental part the production of molecular compounds of halogen derivatives of perinaphthinde- none and its hydrazcne with halides of several metals are de- scribed, as well as the production of 2-J-perinaphthindenone-1 (III), not described up to now. There are 8 references. 5 of which are Soviet. ASSOCIATION; Rostovskiy-na-Donu gosudarstvennyy --irliversiteti Kaft-dra organicheskoy khimii (Rostov-na-Donu State University; Chair of Organic Chemistry) SUBUITTED: January 28, 1958 Card 2/2 4 AUTH'ORS Zhdanov, Yu. A., Osipov, 0. a.. SOV/20-128-4-23/615 12hel _r)4n; Ye., Kogan, V. A. TITLE: The DiDole Moments and Structure of Some Derivatives of Perinaphthindenone PERIODICAL: Doklady Akademii nE,uk SSSR, 1959, Vol 126, 1Tr 4, PP 719 - 721 (USSR) ABSTRACT: Perinaphthindenone (I) and benzanthrone (IV) having weak or no characteristic ketone properties (Refs 1,2) form very solid complex compounds irith protonic and aprotonic acids (Refs 2-4). This auggests a considerable polarity of the C - 0 bond. The instability of perLnaphthindene and benzanthrene is expressed by their tendency of passing over into a stable oxidized state. The possible existence of a perinaphthindenyl cation, produced recently as a complex salt (Ref 5), had been presumed earlier (Ref 6) although the attempt at producing it had failed. The calculations of the binding energies in the perinaphthindene system by the method of molecular orbits showed that a catiGnoid state with a 12TE.-electron assembly is energetically advantage- ous for this systEw. The system is aromatic if it has this as- ~ard 1/4 sembly (Ref 7). Thus, an intraionic binding charac-~er of _~'C - -0 The D4ole Mcments and Structure of Some Derivatives SCV/20-126-4-23/65 of Per-inaphthindenone can be assumed (accc-rding to Ref 8) for the carbony! compounds of the perinaphthind.ene series where the negative charge is localized on the oxygen, while the positive one is distributed over the entire carton system. An extensive analogy of the properties of tropone (II) and perinaphthindenone permits the reduction of its structure to that of perinaphthindenyl oxide (Ia), using also the analogy with tropil oxide (IIa) (see Dia- gram). For perinaphtnindenone, a considerable dipole moment (in the magnitude of 4D) can be expected, all the more so as tropone has a moment between 4.17 and 4.30 D (Ref 9). To clar- ify this problem, the authors measured the dipole moments of perinaphthindenone and some of its derivatives. Table I pre- sents the results showing that the dipole moment in dioxane is reduced by 0.72 D by the introduction of bromine into the nucleus of perinaphtlAndenone, and in benzanthrone by 1.19 D. The introduction of 6. bi--nzonal nucleus reduces it by 0.5-0.06 D. On the other hand, the dipole moment increases by the intro- duction of an oxy group into Position 7 of Derinaphthindenone M. An Intramolecular cycle with a hydrogen bond is formed. k Card 2/4 Thus, the negative charge of the carbonyl oxygen is stabilized, The Dipole Momenta and Structure of Some Derivatives SOV/20-1128-Z-23/655; cf Perinaphthindenone and the C = 0 group is taken out of the conjugation with t;le ground skeleton of -;h,-, molc-(,,ul--- due to intracyclin exchange Processes via the hvdrogeri bond. In contrast to the above, the tropolone has a dipole moment much too low (3-7 D) as compared with the tropone. T1.e value of the dipole moment of the complex C13HB OSbC1 5 (8-50 D) permits assumptions as to its structure: ~ationrAd structure of perinaphthindeny!J~um wi-h a transi--,iop- cf the electron ~onfi.-urat-ion of the arrim.-Iny atom into the state d 2SP3 (similar to HSbCl,). The oxygen atom effects a 0 1 peculiar binding betNeen the cationoid radical of -jerinaph.- ndenylium and tl)~P antimony as one of the addenda of the latter, participating in the coordination sphere with only one of its y~lences. There are I table and 11 refererces, 6 of which are Soviet. ASSOCUTION: Rcstovskiy-na-Donu gosudarstyennyy universitet (Rostov-na-Donu State University) bard V4 ZHDANOV, Yu.A.; SHELEPRI, O.YeO Complex compounds in the peri-napht-hindene series* Izvevys.ucilebe zav.; khimA khim.tekh. 3 no.6.1036-1039 160. OUM 14:4) 1. Rostovski3~,-na-Domi gosudarstvennvy universitet, )mfedra organicheskoy khimii. (Benzonarbthene) ZHDANCV, Yu.A.; SHELEPIN, O.Ye.; EAGDASAROV, K.N.; BUDNYATSKAYA, N.I. Study of the indicator properties of 2-oxy-peri-naphthindenone. Dokl. AN SSSR 153 no.5:1073-10'76 D 163. (MM 17:1) 1. Rostovskiy-na-Donu gosudarstvennyy universitet. Pred- stavleno akademikom A.P. Vinogradovym. 0v. k~-.I.r. n(-.. rc,ma'-. c an a c vc I, k i V=/ mi.-5cellaneous - Tools card 1/1 Pub. 103 - 21/29 Authors Shelepin, V. N., and Shcheglov., Yu. D. Title j Eccentric cotter-pih tuiner Periodical j Stan. i instr. 9, page '56, Sep 1954 Abstract j A universal, eccentric cotter-pin setter and remover, developed by one of the Machine Construction Plants in Moscow, is briefly described. Drawing. Institution Submitted All USSR/Engineering - Tools Card 1/1 Pub. 103 - 23/29 Authors : Shelepin, V. N., and Shcheglov, Yu. D. Title ; I gang tap for cutting threads on sleeve jointe Perlodical i Stan. i inetr- 10, page 35,, Oct 1954 Abstract I A short description is presented of a gang cutter (tap)for cutting inner threads on couplings ard sleeve joints. Drawings. Institution Submitted XOTLYAREVSKIY, G.P.. inzho-no-r;SHELRPIff, V-1-, inzhener; PMO.TRAZHENSKIY, R.Ya., inzhaner. iz~ Increasing the durability of Durip transmission shifts* Vest.mash. 36 no.ll.'50-52 N '56. (MIRA 10:1) (Pumping machinery) (Shafts and shafting) SOV/1 24- 57-4- 3865 1':-anslation from- Referativnyy zhurnal. IvIekhanika, 1957.. Nr 4, p 5 (USSR) AUTHORS: Sliclepin, Ye. I., Zafivovskiy, M. A. TITLE- A Contribution to the Calzulation of the Sliding- friction Force (K voprosu o raschete sily treniya skol'zheniya) PERIODICAL: DokI. L'vovsk. politekhn. in-ta, 1955, Vol 1, Nr Z.. pp 51-54 ABSTRACT: Bibliographic entry Card 1/1 BAY AD117, L.I;.; WaSl.;`i: A,~ .-~ 1'l,,Ck,%.1: ,; -"!,JRNOVA, A.;,~ SHEELEI'lliA, L.A. Experim~,-ntal !a-ta on jh3z,~ti., a~r-tevial sur.ger-j in ---aae an -infecr-nd wcund; jjrcl Trudy 1-go 2,11 16:13~~-141o'62. (MIRA 16:6) 1. Iz 11-a-fedi-j- opo~ra-~i-vl.w; i topografic'neoloy anatcnL~i (zav. - chlcn-korreojx)n,l-~! A1,91' SSS-11 prof. V.V.Kc-)--,ra-nov) Penrogo Moskov.i':ogo ordena lp-iiiiu-, nt.-J~t2hiskofro imtituta. (ARTERIES--SURG--~iliA (SURGERY, PLASTIC) SaRSITIEV, A.V.; SHELEPOV, A.V. (Buzu-"Ul-) Clinicoroentgenological correlations in peptic ulcer In elderly persons. Klin. med. 41 rio.7t133-137 J1163 WIRA 16.112) 1. Iz Buzuluk-skoy mezhrayornoy 'bollnitsy (glavnyy vrach S.B. Kosinskiy). MITELIMI. M.i., Inshes SHFJMDV, V.A., inzb. P.-Assigning af a turbogenerator ventilAtion sy-stsm. Rnorgetlk 13 no.10:17-18 0 165. WRA 18ilo) US,-j3/Cultivated Plants Grains. M. Abs Jour Ref Zhur Biolo, to 41 1958; 15545 Aut.1nor V.V. Shelepov ----------------- _' Inst Stavropol'sk AgricUtural Institute. Title The Effect of the F:arOening of Sccd3 on the Corn Yicl0l. (Vliyaniye zakalki semyan na urozhay kukuruzy). Orig Pub Sb. nauchno -is sled,. rabot stud. Stavropollsk. s.-kh. in- t) 1956~ vyps 4) 5-6. Abstract The tosts were mcte at the trainino farm of the Stavropollsk Agricix1tural Institute. Pre-sowing hard- ening of the seecis raised the fielO Gernination'~of corn from 3 to 9% and the yield by about 30%. The best riethoa of seed processing before sowing was hardeninG with one day soaking and thtan dryinC then off a little afterwarclis. Carol 1/1 1. .51;-LE! ~)v y,;. 1". 2. 113,"1 (6nn) 4. Sheep-Saratov -','rovince 7. More attention to fine-wooled sheep breeding In Sarutov Province. Sots.zhiv. 15. nr).?, 1053. Q. elonthly- Lists of Riissiar, A,-,(-essinns., Library of Congre-s, Arril 1953, unrlass SiF.17'.Ov, YE. S. 'q.'~ethods of Improve:-lent of Shee-) or. Com-erical Fams of Trans-Volga Kolkhozes of Saratm, Oblast." Saratov Zootechnical and ',,Ieterinarian Inst of the Min Hj4r,her Mucation USSR, Saratov, 195:,,". (Dissertation for the Degree of Candidate in Agricultural Sciences) SO: M-9559 16 Feb 56 YEFMIOV, P.V.; SHIMUOVA, G.S. Aca-uracy of the calcru'Lation of the Intensity olr' Onov t4win Trudy T31P no-134a.77-8.4 '164 (iff.RA'- 1?.*8f con F-.RIODICA.L! rsy~ ;-t' 7 ' ABSTRACT: ! 1.21 On F,br,t.ry 1~bj ...j n, summing-up arld coorultattnt; work or. dutocid- In the mutallurgy or tte vy, non-rurroua, rart an.- zoc-t k. Tue conference ta-.--,~t~ 5s fc;:z~s~ . : D_ M. Yukiltanov, GintsveLmot, an ttro.'~.',Oat Z. world on the use of hydromotallur8lcatl, alto_ clove, methods for non-ferrous and rare =eta-, ;rod"t-cz; ' Dabrokhotov proctkel' ' on *!citel lleact. - Ing ;r1Z.1ce -I Card 1/5 2i .0 mo soviet work . ,u a N. I.- ZnLet hftcd :;. N Dan-==_-:Q~ s on the hormod .1cs und "nati.. 0.o c-To r.Z~Z_ t ; y tion by hydrogen and carbon monoxlld~ ~.Tldr ;ressure zf nickel and cobalt from solution; and A-.K- Shole2oy Gipranikell , on design decla. COO on tte a;7:1- catlon of the nowstoots dealt witt ~y a. !;. DoDroktz:_v Yu=huraInIkel1 and Sovorcni~eel. Cc=--m3 &=4 at th: ' -Iorks; 1. N. U k ralay ly (Ufa) Nickel Lonlagradskiy gornyy In3titut Meain6rud M-'-'ze 1wt'.*_*..) on to adv"tagoa of a combined metho d for hicks 1_e1 oc trolysI4 of sl--e3 containing plati n=-SroUp Metals; V. B. -12j,4=, -0-4 11 SeVe. __k ., zc=tl and & 1. Soboll , Giarsvetmez, on the ass.nttais of -_e neutral method of oxidizing leaching 0: nickel coozea%rato from couverter-matte flotation; S. I. Sabol, on ;r-'_'-tn.ry ~ I 6f- a a ulp-murous- investigations an the ddvolopmect sulphuric metbod for leaching nickel and cobalt :r= oxidized nickel ores; A, N. Xal.cit3Uy, Veicnanobr, ot the min results of investf9itions of tOo sutoclavo-s~_a ' Card 2/5 ess for treating tungst.n-ore benefict.tIon produ-12: proc V_ T. PAVmLkaylo, Makhartobr, and skaya (Skopinak) TaOF, separutely, on problects I-- application of an autoclove-soda flow3bect to acte-21te and wolfriunite raw material-, G. A. Ideyersort, X. Ta. Shapiro, N. N. KhAyskly. R. A. Tavlyuk and 1. -P. kIl IM T_1jEiZ__T-'aoy&rskIy MRitut -svdta , LrdS g 1 3 1. 0 raMinloyarsk Non-Forrouo Motals -. z tuto = %--a I-e.t- T Rl I !ia=et1c&!, heate' '1- 1n .,at of to c~acoa , ' S. 1. Soboll, Te.-I. Gulyoyevs, Z. L. Ber'-'Z, 1. 1:. and B.-I.-Rudanko, Siatsvdtntat, on -to -reat-atent Of prelFaFed -and an-proparad sulphide zolybdem= raw :tmzerial by oxidizing autoclave alkaline I.achlnz; 1. L. - au-CZ-ft'. and S. 1, Sobel, on the kinetics of oxldt-_In;i leaching; A. N. :;jIjk_-ajj anti F--as=oyarsk Noc-Yarro-is Vetals Institute. on the results of a study r Oxides of conditions for the sole-tLye aepar~tto t oftungsten and molybdenum fro= =eir am' so uttOzA by hydroeen under pressure; M.-V. DdrbIZJ*&n, GOMO- Card 315 matellurgi"beokiy iAstitut (Laine-L-tal.=g!cal 1=3-itut.j of the Sovnarkhoz (e-oacmi.- tourc.41.) of -he A.MyattUdy. SSR (Armenian SSR) , on his investigations Of 5=041acal auto- clove leuctttag under oxygen pressure of =nlybdac= con-n- tr%ten ;S on tachata-al-eccacmic fact._-3 of a=monia-g leactiLne; A. 1. and I. N. Flukain. a y N. I CKta' - I il,~ Krao o arak ,a.- Fe r I 0a3 .3 Trst1tttt-, 02 do cxi!'- autoollive pro~ena for gold-a-oatalaIng ra. =ftt~r-aL ; N. G. TYLLrJ=, Ural'skly polltekh_l~h.skly lastilUt (Urla'_ Polytocnnic laiLitutu) on the --! _-Oble =*tftlo In oxidiZiLe ftUtOCI&Ve _'11Q!htc9 I- t111Q5'UlPLRt1 SC:.~t'-OnS; . Danab'-'ev. A. L. Taeft nd D. A. Tftzu~W4 a--! k. 7,1 - bZ64 .11 - ,rlyd Z; R 4rt;il 1 0 and .2fititut. of tt- AS Zen SSR). r'3;.:t1vely. ccthe phyoi-oehe=i~al fundat:ftntsls a.4 on worki' !r!alp of auto2lave ja- leacclIng of poly=~tallic =atorid'3: I. Yu. LC Glproaixel', on ttm ung-Altabillty of A~tC~:Iave for 1-=e-~Ontulnln~ ~tertal Bmt.-Zatt~yu' L _ 4~ export.:,,. or a VAL11, an Inl~strlol L.-~Zuou leaching pro,ess for be-jilte3; 7. 1. Tz_-n~v' Card 4/5 SSSR (1011K.1 AS ULSW , vn nmpo,vllzz ~r c.-- rir~ --nentx in various valoncy states under oxygen unl tyl-ceem ;7resaire In the presence of anhydrous a=oatm; Z. L. Ber'-_ oints7otmet, on autoclove doslkT, and o;crat!oz~ S.. cnd 11. Y.. VlZ_ 'VZ_.y' 71- _rakovlev, Glpron IkV ' on duloclaven and tte levy- . ~u notCikhim, on motto Iics lopment of mizura; I'. A. Polynnow, E. B. 'G.'r*_-.t . on the design of an cxp~.rlm.ntal tileh-pr-o"re pulp ;-=p. G. L. Slivarta. Nllhhll2.'ASh. an the aclectloz of steel ror &.1d loftchini; of cobult rstta and =ntte-flotmtio; concontroto, Yu. 1. A_-abukrv, V1'rEldftek!!4:=, 0-. zorro. Sion of ty;.s Itat-IDN9T. 12KhSN. W~rS!-'D anl 10:;%M tt-14 in soda n,i lkstin. solutions tq tre presence of =cTull salts a0 g.r. ht In k V. rIlla -kh.- ,4r :' t, 31, -IS C:, _eZ prn-,~rtl- of h,-Jrn,,.n-.r;,,..t-- -!.e lonre....O. 0:1 L 26378-66 :EWT(I)/T ACC NR: AP6007686 Jp(c) :30URCE--C&b-:--~W/6413/66/OOCi/003/0061/006t!i pf) !AUTHORS: Shelerp Khorst; Vaybrekhtp Otto; 14_eyr _,qt_Aleksander; Khartvig, Khorst ,ORG: none iTITLE: Device for differential transformation of.aerial photogrN~he, class 42.p iNo. 176506 !SOURCE- Izobreter-iya, promyshlennyye obrazt6y, tovarnyye znaki, no. 3, 1966, 67 !TOPIC TAGS: aerial photography, optics, aerial photograph, photographic device JABSTRACT: This Author Certificate presents a device for differential transforming lof aerial photographs. The device is usel in conjunction with a photogrammetic device for processing aerial photographs. It contaihs an inversor which acts an l ithe basic law of optics, and a photograph support and screen which may be posi- -; tioned relative to one another in three mitually perpendicular planes. Accuracy in ,scaling is facilitated by the inversor which features a reduction device for ~control of the coefficient of aerophoto transformation with allowance made for 'focal distance. T.ds distance corres .ponds to the tran form coordinates of the iourrent point of aerophoto slope on the h:)rizontal aerial photograph. The inversorl WC: - -528-722-311 L 26378-66 iACC NR.---'AP6oo7686 is made in the form of direotional-controlled rods and connecting links.attached to each rod, thus allowing rotation about the X-X axis and intersection of the directional at a point on the X-X axis. Electrical control of the coefficient of transformation is maintained by an eleotromoter circuit controlling the variation ol' distance from the objective to the pho-bo and from the objective to the screen. This is an electrical bridge circuit for processing data coming from.the Photogram-i metric device. SUB CODE: 14/ SUBM DATE: 211iov63 Card 2/2 SIDOROV, N.N., dots., kand. tekhn. naulr; SFIELESHKO, K.K., dots., kand. tekhn. nauk (Leningrad) New textbook for railroad technical schools ("Electric traction systems" by E.D. Levashev, G.K. Aetaf'ev, G.A. AlItshuler. %1viewed by N.N. Sidorov, K.K. Sheleshka) Zhel. dor. transp. 41 no.5:92-93 My '59. (MIRA 12:7) (Electric railroads) (Levashev, E.D.) (Astaflev, G.K.) (G.A. Alltshuler) KOVALICHUK, N.R.; SHELESfMQ--2.V.; SIULAYEV. G.1.; SHVETS, A.P. Flooding the Borislav sandstones. Trudy VNIGNI no.12:399-412 '58. (MIRA 12:3) (Borislav regiou-Petrole-m engineering) C7 SREL'TTSHKO. V.: UVITSKIY, B. -- ------ Introducing automatic steering gear on the diesel motorship "Orel". Mor. flot 18 no.8:17-18 Ag '58. (MIRA. 11:9) 1. Starshly InzhAnor gruppy oporativnni-o planirovanlya Dunnyokogo parnkhodatva (for Sheinshko). 2. Nachallnik konRtruktorHkogo byurn Diinaynkog 8bva (for Lnvitskiy). o parokhod (Autnmattc control) (Steering gear) (Motorehips) MELESEffO, V.; ARAN11,11A, V., assiRtert Operating ships of the Damfte Lino in transporting ore on schedulq. Mor.flot 19 no.4:;,4-27 Ap 159. 0AIR& 12:6) 1. Starshiy lnzhnner gruppy.operatirnogo planirovaniya Duna7skogo parol-bndstva (for Sholeshko,'.'2. OdessViy institut inzhenrov morskngo flota. (Danube River-Navigation) (Iron oros-Transportation) USSR/Electricity - Electric Traction Sep 52 Railways "Conference -Seminar on Advanced Engineering on Electrified Railroads," S. D. Volobrinskiy, K. K. Sheleshkov, Candidates Tech Scl "Elektrichestvo" No 9~ pp 92) 93 More than 350 persons participated in the 2d con- ference-seminar on this subject, held early in May at the LIIZhT (Leningrad Inst of Railway Transport Engineers imeni Obraztsov). M. R. Bar- skiy (Riga Elec Mach-Bldg Plant) reported on the 232T64 results of tests of the VL-22m elec locomotive series. A - Ye - Alekseyer (LIIZhT) and A. A. Pogosov (Novocherkassk Elec Locomotive Construc- tion Flant) repur-bed on Llit. pltui6 for a axle locomotive for trunk lines 232T64 SIDOROV,N..N., kandidat tekhaicheakil:h nauk, dotsent.; SHILBS-- OV.K.-K., kandidat tekhnicheskikh sauk; ANSEWIR G.A., iAzhener; FLMM-,K-.V-., inzhener Improving the electric circuits of direct current trun)- line electric locomotives. Sbor. ]JIM no.145:52-73 153. (Blectric locomotives) (MIR,. 8:10) V SHELESHKOV,K.K., kandidat tekhnichealcikh nauk ~-1;~.'-z.-:Z ~, Non-steady processes in power circuit commutators of (1-:: electric locomotives. Sbor. LIIZRT no-145:73-91 153. (MMA 8:10) (Ilectric locomotives) GRIBANOV, A.?.; ZLOTIN, V.I.; OL'K11OV, Ye.N.; SHELESWOV, K.U.; CRLOV, Ye.I. . redaktor; SABITOV,A., tek-hntchesVT1-'ft -- ~-~,-%OZOROVSKAYA, V.L., takhnicheskiv redaktor [The repair of industrial electric trains] Remont prom~-shlennykh alaktrovozov. Moskva, Ugletekhizdat, 1954. 362 p. (KLRA 8:4) (Railroads, Industrial) (Electric railroads) -1 i i -I- . ~ DUNENKOV, V.L.; NEXRkOV, V.L; PLARS, A.V., SHELESHKOV, K.K.; YARCHUK, A.YA. (Leningrad) 1 -1 - Investigation oil some parts of the electric equipment of V8 electric locomotives. Elek.i teDl.tiaga n0.10:18-19 0 '57. (MIRA 10:11) (Electric locomotives) 32(3) SOV/112-59-5-9110 Translation from: Referativayy zhurnal. Elektrotekhnika, 1959, Nr 5, p 100 ~'USSR) AUTHOR: Dulienkov, V. L., Nekrasov, V. I., Plaks, A. V., Sheleshkov, K. K. '11.d Yarchuk, A. Ya. TITLE: Investigation of Electrical E-quipment of Type N8 Electric Locomotive PERIODICAL: Sb. Leningr. in-ta inzh. zh.-d. transp. , 1957, Nr 155, pp 29-44 ABSTRACT: To Introduce final corrections, the scheme of a type N8 electric locomotive had been tested under various conditions before serial manufacturing of the 10COMOUVE was started. Under regenerative braki.--)g conditior-s. the current reached 2, 000 amr)- On the section where the sub - staticnns had no inverter equipment, the contact-wire voltage reached 4, ZOO v, with NB-406 traction motors operating normally. Investigation of the trar-gients accompanying the transition to veries connection showed that sometimes, u-nder regenerative conditions, the residual E~" of traction motors is so combined with the contact -wir e voltage thit voltages up to 5, 100 -6, 000 v appear on the mctor brushes. This caused flashovers from energized motor parts and Card 1/2 SOVI 112-59 -5--9110 Investigation of Electrical Equipment of Type N8 Electric Locomotive equ-ipment to ground. To elimin4_te such overvoltages, it was suggested t1lar. the motors next to ground be shcrt-circuited. To eliminate burning of ccatactS of the braking switch under tra--:iient canditions, it was recommended that t,~'-o con-tactors be used for breaking the traction-motor field circuit when regeneration is cut off. Tests of a new laminated-core D-4 relay showed that -~t provides a satisfactory differEr-tial protection of the power circuit. Buffer protection, under traction conditions, is realized by introduc-ing starting resistors; its operating time is '). 1-0. 2 sec, the motor current beL--g :-educed to one-third of its value. Investigation of the functioning of the protective svstem under regenerative cond:.tions permitted setting a course for solving this important problem. Forced ventilation is recommended for improving the operating conditions of "fekhral' resistors. Detailed investigations of ail exchange within the locomotive bodv Dermitted providing sor-rie recom_rnenda*_-'o!i9 on how to imDrove the ventilati-no, svstem. Bibliography: 3 items. V. N. K. Card 2/2 'On the Prc,'-,-~lem of' the Ex.-perimental Inves~ig tion cf Non-Steady 1~rccesses in Power ga trrent Ifrcuits of D. C. Ioccmotives." Ofi-cial cpponents: A. Ye. Kaplyansk-ly, Fr.-)fess~.-, Doc~or of Technical Scien:!es and Y. D. Levashov, Engineer. Dissertation f,7)r "he Dejree of Candiate of Technical Sciences, defended at Leningrad, Instit-ute for Railraod Engineers im. Obrastzov, V July 1).~O (-Eiektrichestvol 195)), 111'. 5, PP. (;l-)l) ZLOTDi, Iladimir Isaakovich; KAVIDAN, Shimon Flordukhovich; TUNKELI, Naum Ruvimovich; SHELES11HOV, Konstantin Konstantinovich. Prinimali uchastije: Gk3A-N-OV,- A---.-F.'; . 0-LIKHO.V V.-I.; POTAPOV., M.G., kand. tekhn. nauk, retsenzent; NURI-IJKWEDWA, V.F., red. izd-va; OVSEYENKO, V.G., tekhn. red. [Electric locomotive and dump car haulage in open pits] Elektrovozo- dumpkarnoe khoziaistvo na karlerakh. Moskva, Gos. nauchno-tekhn. izd-vo lit-ry po gornoma delu, 1962. 309 P. (MIRA 15:5) (Mine railroads) (Strip mining) 1 1~ "r.: ,j (" -V; - ,!" . 3 " 7 -- p 41 ~, c-n t Lc-, fr-'! in t~a :jourh (X the USSIR. Zasixh. ra~;t. ot v!.t'.'. t ~ I- . t.. i-.-Y 'U. Odid- 15:i--.) I , im;titut zDanchity raoteldy. .7 (Russla, Soathern-Leaf rollers) USSR/ Engineering Drawing dies Card 1/1 Pub. 103 - 3/22 Authors ITsvirko, G. L., and Sheleshriev, A. A. Title sWorking of splined cylinders Periodical IStan. i instr. 6, E~-ll, Jure 1955 Abstract tMethods of drawing external splines on spinning machine shafts by means of drawing the shaft through a special die made of 3Khl2M (ML12T; Khl2Fl) con- struction steel. The die consists of two parts; a cylinder, and a press- fit (in hot state) ring with internal splines. The drawing of splines can be performed on vertical or 'horizontal presses and on drawing lathes, at.- pressures not exceeding 20 t.)ns, and working feeds of from 550-600 mm. Drawings. Institution Submitted SHALESMV, M.. predsedatell. Smelting metal above the T)Iaa. V pom.profak-tivu 14 1. Komitet profsoyuza domennogo tsekha, Novotul'skogo zavoda. no.13:11-13 Jl 1513. (YJ,RL 6: 0' ) metallurgicheskogo (Smelting) SHMEST, A.11., doktor tekhn. nauk Development of diesel-locomotive construction Ln the U.S.S.R. Trud7 Inst. ist. est. i I;ekh. 21:172-211 '59, (MIRA 13:3) (Diesel locomotives-Constructioi) -4- SHELBST, A.P. I --- Improving the design of power presses with periodically rotatin.- tables. Ogneupory 19 no.2:86-88 '54. (MIRA 11:~:) l.Pervourallskiy zavod. (Refractories industry-Equipment and supplies) SHELEST, A.P. Increasing the stability of crusher roll screens. Ogneupor7 19 no.5:230-232 154. (MIRA 11:8) l.Pervourallskiy dinasovyy zavod. (Crushing machinery) SIHELFST, A,T,,, Llct~3,3nt Wrtys of working tr9n:-hes depending on the race of opearaticns. izv,vy.9,-ache~b. zav. ;gor. zhur.6 no.11~22-26 163, (MIRA ;4) y --nslitut -'memL V.V.Vakhrusheva. 1. Sverdlovsk, v gornq, 1~ Rekom-endovana kafedroy ctkrytykh gorn~,kh rabot. SIMEST, A.T,;, dotsen', Effect of the rate of mining on the economy of strip mining. Izv. vys. ucheb. zav.; gor. zhur. n0-8949-53 164 (MIRA 18:1) 1. Sverdlovskiy gornyy institut imeni V.V. Vakhrusheva. Rek-omen- dovana kafedroy otk-ry-tykh gurnykh rabot. SH-HEST, A.-,,. dotsent E,--,),,. c, rn -- c e f 11 e c, -. z- v c- n e -- s o f s h a r t e n i n g " h e d -a r & t i o n c, f , re n c ? 4 n g . 1 z v . vy s . uclieb.zav.;L~Gr.zhur. 7 no.(;,9-Il'l 164. (MIRA 37f!2) 2. Sverd1cvskiy gornyy institut i-Tneni V.V.Ilalchrusheva. Rekomendovana kafedroy ctkrytykh gornykh rabot. no.7:715-72.0 i1 '65. in-Ot.ut flzilli. L K:Yev. ACC NR, AT7004415 SOURCE--CODE-;--W/GOOO/66-/000/000/0051/0055-., N) AUTHOR: Pavlov, I. M.; Tarasevich, Yu. F.; Shelest, A. Ye. ORG: none TITLE: Deformations in the neck area of tensile-test specimens of certain titanium alloys SOURCE: AN SSSR. Institut metallurgii. Napryazhennoye sostoyaniye i plastichnost' pri deformirovanii metallov (Stress condition and plasticity during metal deformatiou)l Moscow, Izd-vo Nauka, 1966, 51-55. TOPIC TAGS: titanium alloy, tensile testing machine, tensile test, crystal orientation/ OT4 titanium alloy, VT6 titanium alloy, VT14 titanium alloy, IM-12A tensile testing machine ABSTRACT: The deformations at of the greatest reduction in area of Ti (VT1) and Ti-alloy (0T4, VT6, VT14) test specimens in two mutually perpendicular directions were compared in order to indirectly obtain information.on the anisotropy of mechani- cal properties. An IM-12A tensile testing machine was employed and the specimens were previously subjected to various types of thermomechanical treatment (rolling at 500 to 1100*C through every 100*C with reductidn of area amounting to 20, 40 and 60Z and with subsequent cooling in water, ai:,- and under asbestos). The criterion used to estimate deformation in the neck in two inutually perpendicular directions was the Card 1/2 'BELOSSVICH. V.K.(Koskva); KALUGIN, V.F.(Moskva); KORNM-V, N.I. (Koskva); PALOV, I.M.(Monkva); SXUCIfAINV, I.G.(Koskva); SHSLRST, A.Ye. (Moskva). InvtiBilgatting the conditicus in rolling titqnium alloyz.Izv.AN SS3& OWAekh.nauk no.10:15-27 0 156. (KIRA 10: 1) tRolling (Metalwork) ) (Titanium alloys--Metallurgy) 17 , 1~ ~ - ! 7 in -rtnf, :n7 4-71 -,.t3 Fav' -jv- S,,e' c-s. ye, S3,V, 3 8 - 3 - 2 "4 9 TITLE'. 7, vest 7 i,3-i o~ a Res~ s tance -o DeFormation in the -;ior i n of T fn ilu 7, and Its Alloys (IssledovaniYe sojro- tivlen-iya def=-liatsi--, t-itana i yego splavov pri gor.-.-achey PER TOD TCAL fraiit--i~~yye cinklady v,T,-,o',,iey shko-ly. 1.1et.-ti-lurgiya., 1958, 14' r~, pp ',(.I )t';j (IT-)'m.) A _3 S -2 The present ;:~a,er c:)f,tains the results of the investigations of -re resistance !-.-, def'=.-tion in the hot punchiing of t-Ltanium and ritiniu-,,i alloys. Titanium %vas produced ~.v means oF the cal-ium 'nycdration :nethod and powder neta-'1L,r-,-Y. T*-,,e fol.-ovi-i-,E sam.-,~Ies were use,-, VT-1-D and titan-ium alloy ivith aluminum, ty-,~e VT-5D Titaniu- es s-milar ~-o and i; al loys '-,ave i: e.- lin ical Pro-c t1ose of stainless 3teel. T-e investi6ptions of the re- s.,s-.-fi,-.--e to deforma,:ion of titanium and of steel of t'-., type ilf-""AMT were compared to each c t ~.e r T.--Ie e '(1 is determined by InvE-,~~t 15.-at i-cr. c-, F `-e Ress t -.,: -e c, Defor.-,:-~ t ion in- t1le SIOV / -~ Cf ---i--~d I~s Alovs p p ~ In -, F, e! I S B, ;B# X I-e ---r-den~.e ~-F t:-~e recist~-.- ,-c- to deformation on t~~.niiera~u.-e i!: nc't of titanium sa--.)leslm-l and steei ~7raphicall- represented. Frc,~-, t- -e L, out may be concluded tc defcrmation of sta-inless s-ee "norease-, unifer-ii1y xith the tem~;eratiire. rpoict---ce tc, deformation in titari= Samples ~,n -re--ise cf t,e stamIDin.-- T- to depends only little or: t'.--e bind -4s 2 times I, t',,-~ resistance o --f L-lo :-,tool sample !D18N9S By dro-pinZ '7 t -m~- t i on r tul L~ie nce to defor - - -ncrerises and at a tem,.er~-It-ure of of t~-.e resis'a.-.ce to deforma~~ion 1;: 1-,;;-,,,, to D,~ "rj---~ i-,t ior i i j , I t SOVI 1 0-- -:~7/"q ? t.v.! It; it I lo"lo of tne f:teel sai:i-,Ae at t,-.-is te.-:i.-;,arature. Eleme!-,tS L-.110YC~' wi t t on1v c--i- e trieir prop(--rties b,--,' .-!,-o the-111- ref:iotance to deformation in punching. It is reco----.-~ended to ' titanitim, alloys at a temperature where the ~-modi- ficati~-_, of titan:-um ex'sts, and to stop this tve;-.t:ie.,;t at tem.5eratures ahere the transition from P-titanium to a- titanium takes DlLCP,. There are 4 figures and I reference, which is Sov:-et. institut sta-li (Moscow Steel Institute) institut metalii.zrijii JAIT SS11, (Institute of Metal!Ltr,-,y,AS USSR) SLIB- -0 - - 10, 1'57 18(0) AUTHORS: Pavlov, I sov/16,z-r8-4-24/417 -T.LI!LE: Investie-ation of the Initial Stage in Rolling and the Transition to the S-~abilized Process (Issledovaniye nachallnoy stadii prokatki i pi?rekhoda k ustanovivshemusya protsessu) PERIODICAL: Nauchnyye doklady vysshey shkoly. Metallurgiya, 1958, Nr 4, PP 141 -148 (USSR) ABSTRACT: On account of the e::amination made here, the following is stated: 1) A compar:.son of different methods of determining the minimum length of the frontal outside strip end in rolling (Ref 3) shows that the easiest and sufficiently accurate method is the one basing or. the measurement of the full pressure of the metal on the rolls and the recording on an oscillograph (Ref 4). 2) The increase of the full pressure after the filling of the roller opening may be explained by the supporting effect of the frontal outside strip end, leading to an increase of the metal deformaticn resistance. In rolling stainless steel, the supporting effect of the outside end is always greater than in rolling titanium. 3) The speed of the frontal strip end after lecomes constant after the discharge of the Card 1/3 frontal end of a certain length (corresponding to the minimum InvestiEution of the Initial Stage in Rolling and SOV/10'3-56-4-24/47 the Transition to the Stabilized Process length of the outs:'de end) out of the rollers. 4) At the moment of filling -:he roller opening with metal, the critical angle is i3maller than the critical angle of the stabilized process stage. The latter angle is determined by the lead. The critical angle becomes greater during the initial process and the development of the lead zone at the expense of the utilization of the reserve frictional forces. It becomes the greate:r, the more the frictional coefficient of the rolling metal Lncreases. 5) The minimum length of the frontal outside strip end may be determined by measuring the width of strip throughout its length (Ref 3). In this case, the frontal outside strip end may have either a fan-shaped or a na.rrowing form. 6) Well comparable results were obtained by all methods for determining the minimum length of the frontal outside strip end in rolling (by the general pressu:7e, by the speed of the frontal end and by the spreading). '!his confirms the correctness of theoretical ideas as to the importance of the outside parts of the deformed body ("thoory of rigid ends") (between quotation Card 2/3 marks in the Russian original), as to the concept of InvestiCation of the Initial Stage in Rolling and SOV/163-58-4-24/47 the Transition to the Stabilized Process "minimum length" (3etween quotation marks in the Russian original) of the o-itside parts, as to the limiting processes from one rolling stage to another, etc. There are 5 figures, 2 tables, and 4 So-riet references. ASSOCIATION: Moskovskiy institut stali i institut metallurgii AN SSSR (fl-loscow Steel Inst--tute and Institute of Metallurgy AS USSR) SUBMITTED: January 29, 1958 Card 3/3 AkAdamlya nauk SSSR. Institut nauchno-tAknIsLchookoy inrormstall ..llurgiYa I metallovedenlys; khImlya, wtallOVedonlYa I obrabotka ti. tan& (Motallur%and Meta 11 ographl; Chemistry, Metallography mid Trwatment.o r tan um ) Moscow, za.vo AN SSSR. 1959. 383 , (Serious Itogl naukil tokhnichookiye nauki, 2) Errata slip In- sertod. 2#700 copies printed. Id.9 K V Agerev, Corresponding Member, Academy of Sciences, USSRi r1n FA .;f iubInhing Roume: V. S. Exhoxnikov; Tech. Ed.: Yu. V. Hylina. t'r\ PURP= s This collection or articles is intended for metallurgists working with, titanium wd titanium alloys. COVRWE; The articles in this collection deal with the chemistry, metallurgy, and macKiring of titanium and titanium alloys. The articles are based ozz abstracts Appearing In the ReforativnY7 zhurn&V for chemistry ArA metallurgy, from 1953 to 1955. For the most part the articles are based on non-Soviet material. Ito par..- alitlov are mentioned. References rollo. each article. -r.,-itakly, To. R.,and & A. Tylkina Proportion of Tttamium and 10 3 Titanium Alloys This to a survey of the physical and =411saical PrOPvrtt&& Of tj~.ajaju% &rxI titanium alloys. Data are given On the effect or 03, gen. nitrogen, hydrogen. and carbon On the mechanical prop- @riled Of titanium. and L. D. Ritahtakova. float Treatment of Titanium . ORJ~T~_ 'Za Titanium A oys 163 , .' The authors discuss -ark hardening, annealing. grain refining. and other heat-treating methods ro I. titanium And titanium alloys. Also discussed are the affect of alloying elements On heat- treating chargoterIvtLos. mechanical properties after heat zz-' tlh.~. at heat treating. -P. M. Thermoch*cdcal Treatment Lairfuslon CoatLn& or r 1 ~ 137 , WU . This article deals with the nitriding. boronIzIng. and aill- cOnizinIS of titanium. sh I* t, A.-Ye., A~ X_ D,,t1-gh,nkor and 1. M. Policy- Porming .Ar -Titanium Alloys 193 The authors discuss the special features or plastic d*form- StIon. eaneral characteristics of cold and hot working, In- dividual forming operations, preparatory and finishing opar- stion*, organization or production. and storage and utilization of Set*. Yo. M., and t. A._TrjklnA, Recryntallization of g"I"61117Alloys Titanium 226 RearyetalltrAtion of rutgnesium-reduced and Iodide titanium to discussed In reference to Ito occurrence after cold working, t forging'annealing. tempering, and hardening. Data are ^Igo an on the effect of the annealing temperature on the properties Of titanium and the effect of allaying additions on the recrysca21- IZAtiOn temperature. -BB&b&r"vkO -A-A. Deformation and BecryntallizatLon Textures of Titantun _iu_~tanium Alloys 247 The article deals with textures assumed by titanium and titanium A110YO after different forming operations. 4h;__aU_Q_vtZM.rKh and 0. V.~azsrcv. WoldW, and Soldering of T F, Titanium a anium All'6ji 2~2 &nj Welding charactdrLatics of titanium are discussed. Data are given an welding and soldering methods. Malont,~y,av, B.~ F., and A. 1. Pgpomnrnv. Methods for _17!-,emi cn17 Analyolro or Titanium and- Ti_tii~iun Froducts 265 Dat aare furnished on qunlitntive, vnlu;II,,tr1c. poA~Frophle. Colorlmetric ~-,thods or arAlys!m. Phaao anallyaln .a aln~ ijecla".- Ro~ancjv.A_f. Tnoory and Pr,scti~o, or Mi, hir.:r.4 _n A~jj r. 1--no.Ing topIC3 a,. b1 IItY, causes or p~r 11ol other V~tc-~rt, on 11t7,. t,T7- Pavlov, I. Shc1cf:11, A. Yo. T! 2 T r 4 C 1, Invcsti.-ation of th(: Its Alloys in 7ollinL; t Sj pri pr-Acatke titana i ye_-t) P7- TCDT Nauchnyye doklad vgshe~ shkoly. Metallurgiya, 1959, Nr 1, pp 105 - 1T2 C17': At fii-st the formulas (1), pa,crs citcd by re7(, ei~ct~s 1,2, J -~;itd t'-c is Pointed out tl,at 'U!-z-.-e fcrr;',.-1as a:.-c -i.,-1~lpfic ci.', As C.~~ altr-.rnative formula S P--iction aconr,lin- -.c. T - 1, - ~'. -,;! (' I- - ":.'. " , "cr (Pef is -.:rit'en c(,'cf' c'OFt ill 11;~' -Cellill its al~. U C. accor,diriL to thin- .-:!-4c1, "ull,- stc--di f;--Irw,q.rd sli-In,ti.e ovc!ro.11 a-z-1 measured. Two foriru' as, an accul.71! 0 a, d a _,,,e tl~e f--'C140r,. t W S Card 111 3 -.7e-e uscd to deter-7 U 7/18 I rivccti -anion c-f t':c -:,'r i c f:ion Coc ff"' c ' .:?,.t c-f 'I"i ',an _i u:,-. V,- I r, :---1-21/Io a d I s A 11 that the curve rerrese.,-tind the --cef-*:-.---"e..t v t~ r C'-'. s t2m:crature function in tI.0 cf tital.i-t=, i s allo-s and stainless stuei, ta"e-c -- cor---.2-x ccua:se, tl a .1 - 0 maximum being fourd in V~e rejon of c,50 - 1050 . Tt ft,..--ther -~'ound ti --cie,.t in tl-e l I.e fricticn ::cef~4 of titzi nium c-P ty-co ai-I ~)f' ilLs alloys i -s by a f~llctor of 1.S than the f-rlctinn in the roiliiiLg of 2taninless of 11~.o It is Shr".."11 V.-al t"Ic- all(Aropic of t~'.C- J'S-PIII~se ii1tc the v,- phase which --cc~J---s durinj tl:e co, line: ~--f "it--nium ~-.d -f ills alloys iz-, t`.--~ c-!' in s,pecific pressii~:e, cf tcz-.,-:e, --f i c, n o f t'. friction on t1e rc 6 fi-1-11res and Ca~,d 2;'; T -a-t ion -..f tl~o ".'ric tion c-.;1,t _'i t a.-1 Its All(j,ys in 7,cl1in_;- ASS S t4 MaY 31, Card SHELEST, A.Ye.; DANILICHENKO, A.N.; PAVLOV, I.M. ~ . . . I I ~ .. 1 Z,-. 1. ~ 1. _4 Drop forging and rolling of titanium and its alloys. Itogi nauki: Tekh. nauki no.2:195-225 159. (MIRA 12:9) (Titanium-Metallograph.v) (Forging) (Rolling (Metalwork)) PAVLOV, I.R.; GAIIIN. N.P.; YEGOROV, B.V.; SHFJZST. A.Ye., SYUY TSUO-MA Use of rotary bearings to investigate the rolling process. Izv. vys. ucheb. zav.: chern. met. no.1:84-87 160. (MIRA 13:1) 1. Institut metallurgii AN SSSR. (Rolling (Metalwork)) 22751 S/5og/60/000/007/012/014 IJ E194/E483 AUTHORS- Pavlov, I.M. and Shelest, A.Ye. TITLE., Investigation of Basic Factors in Rolling Titanium Alloys With High Reductions PERIODICAL-- Akademiya nauk SSSR. Institut metallurgii. Trudy, No.7, Moscow, 1960. pp.ILO-114. Metallurgiya metallovedeniye, fiziko-khimicheskiy metody issledovaniya TEXT.~ The authors have previously studied the hot rolling of various titanium alloys at constant relative reductions of 20%~ They now descr-lbe corresponding studies on one of these alloys, FIT5 (VT5) and type 1)(18H9T (lKhl8N9T) stainless steels at reductions of up to 60% A two-high mill with smooth 200 mm diameter rolls fitted with ball bearings was used to roll specimens 10 mm thick, 15 mm vride and 150 mm long. Total rolling~ pressure was measured with carbon load cells in the screw-down gear. Wire strain gauges on 1-.he shafts measured torque, their output being amplified electronically and'recorded, together with total rolling pressure by means of an oscillograph, Specimens were preheated to 800-,1200"C to give uniform temperature dis':ribution (Ref.14 V.K.Belosevich, V.F.Kalugin, H,I,Korneyev, Card 1/5 A 22751 S/509/60/000/007/012/ol4 Investigation of Basi~ Factors E194/E483 I.M.Pavlov, I.GSkugarev.. A.Ye.3helest, "Isv, AN SSSR, OTNII, 1956. No,10)- Fig.1 shows specific j?ressure, kg/mm2, as functions of rolling temperature by continuous and interrupted lines for the titanium alloy and stainless st4iel, respectively, curves 1. 2 and 3 refer to reductions of 60, 40 and 20%, respectively, The specific pressure was less than when the authors used 220 mm diameter rolls (Ref.3~ I,~I.Pavlov, A.Ye.Shelest, "Nauchnyye dcklady vysshey shkoly (metallurgiya)", No,--3, Izd-vo "Sovetskaya nauka", 1958), the difference rising with falling roll pressure, The ratio n of the contact angle a to the central angle ~p, i.e- the angle between the radius through the point of application of the total metal pressure on the rolls (acting in the direction of the vertical axis) and the.'a'xial line, varies within the range 2- 3 for both steel and alloy.,first falling and then rising with increasing reduction, The authors note the importance of this parameter, Spread was measured by finding the change in distance between two points on the side of the specimen produced in rolling, The lateral spread is plotted as a functian of temperature for 20% average reduction of type r-jTlA (VTlD) titanium in Fig,2-, for lKhl8N9T the maximum lies at 1100 and for Card 2/5 -22751 5/509/60/000/007/012/014 Investigation of Basic Factors E194/E483 the alloy VT5 at 1000 -10500C, and for technical purity titanium at 900- 9500C. Spread a's a function of relative reduction is shown for the steel and the alloy in Fig-3, left and right-hand graphs respectively, at 800, 1000 and 12000C. The work has shown that foir VT5 alloy the specific pressure in the beta-phase region is considerably less than in'the alpha-phase region, the transformation.leading to an abrupt change. The spread mechanism in rolling titanium is mpinly througli barrel formation, whi-le with steel it is mainly through slip along the c *ontact surface. The dependence of the index of spread on temperature is also affected by the allotropic transformation, the index being lower for alpha than for beta titanium: -the narrower the temperature interval of the transformation the sharper the ch~ange. There are 3 figures, 1 table and 11 references: 10 Soviet-bloc and 1 non-Soviet-bloc. The reference to the English langua--e publication reads as f o 11 oli-S :C.W".Starling. "Sheet D-1etal Industries", 35, 1958, No.379.. Caz-d 3/5 Investigation of Basic.Factors ... 22751 S/509/6o/ooO/007/012/014 E1014/9483 40 W - 117 10- J\!l 06 1 700 800 900 W047 ffOO fZOOOC Q fe z TeAenewa-ppa nPaxamra.0C --F 0 1 Yi/t/ lf'rIll fitlIg Fig.2. Card 4/5 22751 s/5og/60/.-OO/007/012/014 Investigation of Basic Factors ... E194/E'X'83 fj 9z 0 1 'U zu JU qu Ju fo zo 30 40 so Om,acume.a&Hve a6Ncainue, 7. Fig .3 - Card 5/5 20264 I ~ 0C)'4 S/180/61/000/002/002/012 E073/E535 AUTHORS: Pavlov, I.M., Sigftlov~ Yu.M.,_S_4_4~les_~, A.Ye., Zubko, A.M. and GUrevich, Ya .B, (Mosc'~wi TITLE-, Investigation of the Process of Hot Rolling of Aluminium in Vacuum arid in Air PERIODICAL: Izvestiya Akaderiiii nauk SSSR, Otdoleniye teklinicheskikh nauk, Metallurgiyet i toplivo, 1961, No.2, pp.64-67 TEXT: The influence on the friction coefficient of scale or an oxide film layer on the surface of a metal being rolled has been the subject of numerous paperfi. However, no direct comparison was made of the ordinary process of rolling aluminium in air and in vacuum. Such a r-mparative study will permit direct elucidation of the influence of oxide films on the conditions of rolling. The authors investigated the power consumption, the speed and deforma- tion conditions and the friction coefficient during hot rolling of aluminium in vacuum and in air. The rolling was on TsNIIChermet laboratory vacuum equipment permitting heacing, rolling and cooling of 15 x 20 mm, 200 mm long specimens in a vacuum down to lo-5 mm Hg. From a forged an4j. annealed blank 150 x 10 x 12 mm Card 1/5 20264 Investigation of the Process- s/18o/61/000/002/002/012 E073/E535 specimens were cut. These were heated in a tubular electric furnace. The heating temperature was maintained within +150C., Rolling was at 4000C with reductions of 20 to 70% per pass. The diameter of the rolls was 85 mm, the rolling speed 6.5 m/min. The rolls were of steel W )(-IT (ShKh-15) (hardness 55 Rc ) and had a polished surface. The pressure was measured by wire strain gauges. Fig.1 shows a typical oscilloS;ram in which 1 is the torque on the top spindle, 2 arid 5 - pressure measured by the strain gauges, 3 - recorded roll speed, 4 - recorded strip speed, 6 - torque on the lower spindle, 7 - oscillation curve (500 c.p.s.). Fig.2 shows the dependence of the broadening = B 2/B12 % on the relative reduction L~Wi6h, where H, B and L 1 are respectively the height, width and length of the specimens before rolling and h B 2 and L2 are respectivelv the height, width and length after 4A 6 h = H - h, (Here and in the rolling, B = B2 - B 1 and following plots the dashed line curve refers to results obtained in vacuum and the continuous line curve refers to results obtained in air), Fig.3 shows the lead Sh as a function of the broadening, Card 2/5 20264 Ilivesti'~;ation Of t'le ProceS-s ... 0 7 "5 / S5 '7 5 whereby Lstrip Lroll roll orhere L Strip is the distance bet-;,reen the markings on the strip and L is the distance between corresponding markings on the roll. roll Fig.4 shows the dep,--vlence of the specific pressure P, kg/mm 2 on the broadening Fig-5 shows the friction coefficient ff as torque 1-1, kgm as a function function of Fig.6 sl-ows the Of It found that the friction coefficient and the T re .,,vxired force, which dependE directly on the friction coefficient, for vacuum hot rolling of titanium, grade F-5T-1 (vT-1), is considerably lower than for rolling in air, i~;-hilst for nickel and iron (C - 0.01%) it is higher in the same way as it is for Al. This again confirms the dependenco of these quantities on the chemical composition of the rolled me,,.al. The following conclusions are arrived-at: 1. It was established that for Al the coefficient of friction Ca r i~:5 2026h Investigation of the Process ... s/18o/61/000/002/002/012 E073/E335 during rolling in vacuum is higher than for rolling in air, whereby the greatest difference (by a factor of about 1.4) was observed for smaller reductions; 2. it was confirmed that th'e- friction coefficient during rolling decreases with increasing specific pressure both in air and in vacuum. There are 6 figures and 7 references: all Soviet. SU3,%IITTZD: August 8, 1960 Fig.1 Card-4/5 P"LOV, I.M.; GANINt V.P.; YEGORG79 B,V.; SHELEST, A.Ye.: SYUY TSUO-KHUA Investigating the process of rolling with smooth rolls by the method of rotating beari!igs. Izv.vys. ucheb. zav.; ehexm~. met. no.3:67-73 161. (MIRA 14:3) 1.19Qskovskiy institut stali i institut uietallu~g# AN =R. (Rol ling (Metalwork)) 26582 s/l48/6l/OoO/006/oo6/ol3 1'tloo J_N~c Itl(b 1411 E073/E535 AUTHORSi Pavlov, I,m~, sixalov, Yu. M., Shelest, A.Ye., Zubko, A.M. and Gurevich, Ya. 13. TITLE, Investigation of soine conditions of hot rolling of titanium in vacuum and in air PERIODICAL~ Izvestiya vysshikh uchebnykh zavedeniy, Chernaya metallurgiya, 1961, No.6, pp.io6-llo TEXT- The authors investigated the force, velocity and deformation conditions dur1ng the process of rolling of titanium in -%-acuum and compared the results with s1milar results obtained for rolling in air. This was done to elucidate the influence of the scale on the friction coefficient, specific pressure and other parameters of the rolling of commercially pure titanium. From a pre-forged blank, specimens 15 x 20 mm, 200 min long were cut. Those specimens which were to be rolled in vacuum (3 x 10 5 mm HO were heated in a small-chamber electric furnace with molybdenum heater filaments. those to be rolled in air were heated in an electric furnace with nichrome heater filaments. The specimens were rolled in the temperature range 800-12000C on a two-high mill Card 1/6 165) 8! investigation of some conditions of S/148/61/000/006/oo6/ol3 E073/E535 with rolls of 85 mm diameters The average reduction was 20%, the speed of rolling was 6.5 m/min.. The rolls had a ground surface with a hardness of 55 RC. The rolling parameters, 1.e. the total pressure, the torque., the speed of the rolled strip and the circumferentlal speed of the rolls were recorded by means of an 8-loop oscillograph. Fig.3 shows the dependence of the fric ion .oafficient, VO' and of the specific friction force T . kg/mm on the rolling temperature, OC. Fig.4 shows the dependensce of the friction coefficient fl and of the forward slip S h on the rolling temperature, OC, Fig-5 shows the dependence of the specific pressure, kg/mm2, on the rolling temperature, *C. Fig.6 gives the dependence cf the specific pressure, kg/mm 2, and the friction zoefficient fl on the reduction, %. In all these graphs the continuous line curves apply to roll--ng in air and the dashed line curves to rolling in vacuum. In thE paper the auth:)rs apply three differing friction coefficients., one f"' determined according to the formula of S. I, Gulikin (Ref.12i Tbeory of shaping metals by pressur-e, Metallurgl2dat, .''947), another V1 determined cn the basis of the theoretical formxila for the torque,proposed by C,ard 2/6 2 65 8-) investigation of some condition!s ... S/148/61/000/006/oo6/ol3 E073/E535 V. i3ayukov and the third, V, determined from the value of the forward slip. The following conclusions are arrived at-. 1. In all cases of rolling in air the curve expressing the dapendence of the friction coefficient on the temperature has a ccnvex-shaped section with a maximum in the temperature range i050-11500C~ If titanium is rolled in air at *800-11000C, a dense layer of titanium dioxide scale forms which leads to an increase "n s.:.iding friction coefficient and spreading. At rolling temperatures above 11000C, a derase layer of scale of a fine grain iitructure forms which peels off easily from the base metal and leads to a reduction of the friction coefficient, the friction coefficients fj and f" are similar and their values are very n,E!ar to each other. When rolling was performed in vacuum, the triction coefficient was considerabiv lower and showed a tendency 7e~ increase with increasing rolling temperature. Th-i-;z is ~~Liributed to a drop in the specific pressure with a minimum -affe:t of 3ther factors., Changes in the specific pressure p and the specific friction "3rce "5 were similar during rolling in vacuum and in air. The bard 3/6 26581- ----,restigation of some conditions ... S/148/61/ooo/oo6/oob/013 E073/E535 values p and r , and consequently also the torque- are affected by the sudden a ?o P transformations and this explains the sharp drop in the friction coefficient, forward slip and the slight '-ncrease In spreading in the temperature range 850-9500C. 5~ With reduction an increase is observed in the specific pressure and a decrease in the friction coefficient. 4, The exper--ments revealed considerable qualitative and quantita- z;,Ye differences in the force, velocity and geometrical factors pertaining to rolling titanium in vacuum and in air. Experzments carried out earlier by some of the authors (Ref.14: Sial', 1959, No.10, 929-931) yielded differing ri~,sults. namely, the coefficient of friction and the geometrical and force conditions depending on it were considerably higher in vacuum than in air in the case of rolling pure iron with a carbon content of 0.,01%. This clearly indicates that the investigated quantities depend on the chemical composition of the rolled netal. There are 6 figures and 14 references: 13 Soviet and 1 non-Soviet. ASSOCIATIONi Institut metallurgii imeni A.A. Baykova (Institute of Metallurgy ameni A. A., Baykov) Card 4/6 PAVLOV, I.M.; YEGOROV, 13.V.; SHELEST, A.Ye.; SYUY TSUO--KHUA Inve2tigating Lhe process of rolling with smooth rolls with the help of a split roll strain gauge. Izv.vys.ucheb.zav.; chern.met. 4 no.9:87-94 161. (14LIA 14:10) 1. Aoskovskiy institut stali i Institut metallargii Akademii nauk SSSR. (Polls (Iron mills)--Testing) (Strain gauges) 6/598/62/000/007/028/040 D2'7/:)307 .%.J 2-JiL 2aviov, 1. ~helost, i~, Tarasevich, Yu. F. and 611af"hov, V. '_.Ji"': Invest4-ation o~* rollin- of certain titanium alloys _6 U_ - 0 tut meta"largii. T4tan yego :~ no. -.oscow, 1)02 7 11, ptallokhimiya i novyye S lavy. 6piavy, 20'+-212 Hot and "warr." ro-L o 1' '2i all 2.5 1 -1in oy s c ori. uaining 1 a,~,d o.o 2cl,, I.Ln (alloy 12 3.5~1,, Al and J.8 - 21,4' Mn (alloy 2), 5 1 d 2 - 3 S n(alloy 3) was StUdied *a-nd compared with of c~ommercially Pure '2i. 1-4-icrostructure of the alloys, the :~hero,:lena of 'gas SaTUratior. and scale formation a-d the ,lardness of -.he alloys were also It- was found that commercially pure Ti has a smaller tendency to ox-ldize than the alloys. Apart scale formation, the exII-ent of gas saturation increases on hea-L,intg. Saturation of the s!irface layer of titanium with oxygen and nitrogen leads to t',Ie st-ibilization of the-~,,-phase. At the Ij/ f, kjard 1/2