SCIENTIFIC ABSTRACT KORNILOV, I.I. - KORNILOV, I.I.

Document Type: 
Document Number (FOIA) /ESDN (CREST): 
CIA-RDP86-00513R000824720009-9
Release Decision: 
RIF
Original Classification: 
S
Document Page Count: 
100
Document Creation Date: 
November 2, 2016
Document Release Date: 
June 14, 2000
Sequence Number: 
9
Case Number: 
Publication Date: 
December 31, 1967
Content Type: 
SCIENTIFIC ABSTRACT
File: 
AttachmentSize
PDF icon CIA-RDP86-00513R000824720009-9.pdf4.69 MB
Body: 
BI TSIN-YJWA [Pi Ch'ing-hua); KOR111LOV,..I.l ' Phase equilibrium diagram for the syst4m titanium - vanadium - 'iron. Trudy Inst. met. no.8:54-57 161..' (MIRA 14:10) (Titanium-vanadimm-iron &Uoya.-44etallography) (a, ase rule and equilibrium) KORNILOV, I.I.; MATVEYEVA, N.M. Vanadium and its fields of applieation. Trud3r.Inst. met. no.s: .. 58-81 '61 - - (14W 14:10) (Vanadium) .KORNILOV, I.I.j- NARTOVA, T.T. Dependence of.the creep of alloys in tlw binary system titanium - t-ib on their composition. Tvidy Inst. met. iio.8:10A.lo 61. (min w 10) (Titanium-tin a.Uo7*-4btalIo9r%Yw) (creep of metals) (Phw rule.aW equilibrium) AUTHORSt TITLEs PERIODICALR Pi Ch'ing-hua, Kornilovv I. I., 5/076 61/006/006/005/013 B 11 OYB206 Phase diagram of the ternary system Ti - V - TiFe Zhurnal neorganicheskoy khimiiq v. 69 no. 69 19617 1351-1354 TEM From the investigation results of quasi-binary sections TiFe 2 - V and TiFe V, the authors established for the phase regions of the ternary system Ti V - TiFe that at room temperatuxe four monophase, five diphase, and two triphase regions are in a state of mutual equilibrium. It was the authorO aim to study the phase diagrams of this system at 1000 and 8000C, as well as the phase conversions of some alloys In the solid state. 93 alloys from titanium sponge 'Tr -0 (TG-O)~ metallic vanadium (99% V), and an alloy corresponding to the compound TiFe with a ratio Ti 8 Fe - 50 3 50; 60:40; 7000; 8Oa2O; 84,16; 9000 and 950 were produced and investigated by m1crostructure- and X-ray structural analysis. For the structural 0 analysis these alloys were quenched in water after 46 hr heating at 1000 C and 248 hr at 8000Co The alloy with 2*5~ V and 4.04, Fe was in the diphase Card 1/6 23079 !i/07e/61/006/006/005/015 Phase diagram of the ternary system ... 13110/B206 84 : 16 and variable,V' content, on . tl.~e basis of which the polyt hermal curve (Fi&. 4) was built. It can be seen fr6m it teat the phase conver- sions change over for % V from the A +.,-,+ ' -regions into the v~ + + 0 region at 600 C at relatively 1 ~ tempe~aiuiea, for 101p V from zhe 0 % region into the ~ +~'-regionat 505OC- With.an increase of the V content above 4Wo, the temperature of the conversion of. the JR, +,,, -phase into the solid f-l"-solution drops. In all phase conversions from triphase regions + into diphase regions, heat is set free, which determines the conversion temperature. There.are 4.figures, 1 table, and 5 references: 4 Soviet-bloc and 1 non-Soviet-bloc. The refe.-ence to the ~nglish-language. publication reads as follows: W. R. Lucas, W. P. Fizhel. Trans.Amer. Sqc. Metals, A_6,'277 (1954)- ASSOCIATION: Institut metallurgii Akademii nauk SSSR im. A. A. Baykova (Metallurgidal Instituteimeni A. A. Bavkov,* AS USSR) SUBMITM: -April 30i 1960 Card 3~6 89362 S/089/61/010/002/013/018 B102/B209 AUTHORSt Kornilov, I. I., Polyakova, R. S. TITLE. Hardness of some alloys on niobium basis at high temperatures PERIODICAL: Atomnaya.energiya, v~.-10, n. 2, 1961, 170-172 TEXTt The present "Letter to the Editor" deuribes investigations of the temperature dependence of thelhardness of niobium and of some of its alloys, which were carried out after a method described in Ref. 1. The alloys examined had the following composition (in %. by weight): Nb Mo Zr Si Al a 100 95 5 - 90 5 5 89 5 5 1 Be 5~ 5 1 1 67,8 5 5 1 1 0,2 Card 1/4) 89362 S/089/61/010/002/013/01,3 Hardness of some alloys B102/B209 the investigations: 1).Niobium, just as nickel, iron, or cobalt may be strengthened by alloying i-t- the components may be introduced either by Oormalion of a solid solution or by formation of a supersaturated solid so- lution and separation of the excess phase, 2' The method of the "hot" hard- ness (which was used here) allows to characterize in first approximation the- hardness of alloys at 0high temperatures. 3) Multi-component alloys showing* high hardness at 1000 C have to be further exe,mined and to be tested for heat resistance by means of standard methods. There are 3 figures, 1 table, and 3 references: 3 Soviet-bloc. SUBMITTED: June 18, 1960 g/mm2) Legend to Fig. 2: Ordinate: Hardness (k abscissa: Temperature (00. The figures beside the curves indicate the number of component s (cf Table). Legend to Fig. 3: Strengthening coefficient of the alloys at three dif- ferent temperatures; the figures ndenote the (n+l)-component alloy. Card -3 31o5t? S/126./61/012/004/008/021 E193/E383 AUTHORS: Kornilov I.I. and Yakimova, A.Mo. TITLE- The effect of h drogen on the structural properties of alloys T3, TK, T6 and T8 PERIODICAL: Fizika metallov i metallovedeniye, v. 12, no* 4, 1961, 550 - 557 TEXT: The alloys T3, T4, T6 and T8 represent a group of alloys of the six-component Ti-Al-Cr-Si-Te-B system, differing in the Al content only, the total conteirt of the remaining all- oying additions being constant at 1.2 - 1.69'. The Al content of the experimental alloys was 30% (T3), 4.26% (TO, 6.0% (T6) and 7.3796 (T8), their oxygen and nitrogen content being 0.09% and 0-030%, respectively. Hydrogen (0-005, 0-015, 0 025, 0-05 or 0.08%) was introduced by heating in vacuum at 70; 0C in the presence of titanium hydride. The effect of hydrogen was studiod by metallographic examination, mochanical testing and X-ray diffraction. Tensile tests were carried out at room temperature at strain rates of 0.16, l1.-'; and 48.2 mm/min. The impact strength was determined at +20 and -78 OC. Thermal C a: d 1/7~ 31052 S/126/61/012/004/008/021 The effect of hydrogen on 2193/9.383 stability (resistance to oxidation) was i3tudied by holding the alloXs for 100 hours at 450 and 500 (T3 and TU or 500 and 550 C (T6 and T8) and subjecting them to tensile tests at room temperature. Several conclusions were r,Bached.I)Addition of up to 0.25% hydrogen slightly increases the room-temperature tensile strength of the alloys studied without significantly affecting their plasticity with the exception of the alloy T,-Q,. This is illustrated in Fig. 2, where reduction of area vertical scale) is plotted against the hydrogen content (0,G) and strain rate (v, mm/min) used during the tensile test. These results were'attributed to the fact that the la t t i c e of the a-phase was only slightly distorted by hydrogen owing to its small atomic radius. The loss of ductility in alloy T8 is most likely associated with the precipitation of brittle a2-phas'e. 2) The impact strength of alloys T4, T6 and T8 at room and sub-zero temperatures is not affected by the variation of the hydrogen content in the 0-005 _-~.08%6 range. Alloy T3 is an exception because of low Ca3 The effect of hydrogen on 31052 S/1215/61/012/004/OoB/o2i E19VE383 solubility of hydrogen in alloys with 39/o Al. In the can* of this alloy, the impact strength at room ".'emperature falls from 4 kgm/cm2 at 0-005% hydrogen to 1.0 kgm/em 2 at 0608%,:~the corresponding decrease 2in the impact strength at -78 C being from 3.2 to 0.8 'xSm/cm . 3) Thermal stability of the alloy T8 is strongly affected by the variation of its hydrogen contont which, however, does not affect this property in thecase of alloys T3, T4 and T6. This Is indicated by data given in Table 3, showing the vari 'ous mechanical properties of the alloys studied after preliminary treatment consisting of heating in air atvarious temperatures for various,limes. 4) X-i-ay ~ diffraction analysis revealed the presence of a residual P-phase in the alloys studied. The m- and P-phanes are not in equilibriun and a transformation takes place when these alloys are held for 1.00 hours at 450 - 550 0C, as a result of which the state of equilibrium is xuached. This transformation is accompanied by redistribution of the alloying elements between the a- and P-phases, the P-phase becoming enriched with Cr and Fe. Card 3~# ~ 3105 2 S/126/61/oi2/oo4/008/021 The effect of hydrogen on oeo E193/E383 5) The lattice parameterof the P-phase in the alloys T3 and T4 is unaffected by the presence of hydrogen. In the case of alloys T6 and T8, hydrog3n dissolving in the 0-phase on heating considerably increases its lattice parameter. Acknowledgments are expressed to N.I. Blok, A.I. Glazova and N.F. Lashko. There are 5 figures, 3 tables and 7 references: 5 Soviet-bloc and 2 non-Sovlet-bloc. SUBMITTED- February 14, 1961 Card 4/ / /7 Y owl&o Z.L7U S/020/61/137/003/016/030 lgjzg~/ QW 165-T B103/B208 AUTHORS: Grum-Grzhimaylot N. V., ~_0rni1~V_,J.1,I.q_,Py1ayevaq Ye. N-t and Volkova, M. A. TITLE: Metallic.oompounds in the range of solid a-solutions of the system titanium-aluminum PERIODICAL: Doklady Akademii nauk SSSR, v. 137, no. 3, 1961, 599-602 TEXT: The authors proved (Ref. 6: Tr. inst. metallurgii AN SSSR, no. 2, 1957) that in titanium - aluminum alloys (7.5-20 wt% Al) the resistance to creeping in bending deformation by the centrifugal method rapidly increases as plasticity decreases. They point out that such a change of properties in the range of solid solutions of the binary system Ti - Al could not be explained by conventional methods of metallographic analysis. The objectives of the present study were therefore the following: 1~ investigation of the range of solid a-solution in the Ti - Al system; 2 determination of the nature of phases appearing in it by measuring the Hall effect as a function of the composition of the alloys. The authors have previously proved (Ref. 9: ZhNKh, .1, no. 10, 1957; Ref. 10: ibid, Card 1/8 21568 S/020/61/137/003/018/030 Metallic compounds in the range of ... B103/B208 31, no. 9, 1956) that the galvanomagnetic effects are related to the composition of various alloys in a way that salient points and jumps appear in the diagram oomposition-versus-Hall effect. This phenomenon can be explained by the fact that the electron states in the outer atomic shells are changed by applying a magnetic field. This affects the behavior of conduction electrons and alters the values of the Hall constant. The galvanomagnetic effects are closely related to the behavior of the electron components of the outer atomic shells. The state of the outer shell may be studied with high accuracy on the basis of these effec'u-s. The character of the chemical bond between various atoms of metallic alloys may thus be explained. The authors prepared alloys from pure titanium and aluminum with an Al content UP to 40 wt% by two methods; 1) powder metallurgy by pressing and sintering in vacuo at 600-10000C for 50-100 hr. 2) melting in the are furnace with a wear-resistant tungsten electrode. The current collectors were triangular and knife- shaped at the point of contact with the specimen. They glided along the polished lateral faces of the sample by means of micrometer screws. Test method and measuring apparatus are described in Ref. 11 (N. V. Grum- Grzhimaylo, ZhNKh, 1, no. 7, 1958). Table 1 contains the resultant mean Card 2/8 21568 S/020/61/137/003/018/030 Metallic compounds in the range of ... B103/B208 values of the Hall constant of the alloys. On the basis of these data, the authors plotted a diagram of this constant as a function of the composition (Fig. 1). Two (a and b) jumps from the linear variation of the Hall constant to another linear variation are seen. These jumps correspond to: a) the compound Ti Al with 14-3 atom% (9 wt%) of aluminum; b) the compound Ti3Al with 25 ato;4 (16 wt%) Al. The sintered and the cast alloys showed the same behavior. The cast alloys were subjected to homogenizing heat treatment (between 600 and 9000C for 200-350 hr) immediately after measuring the Hall-constant. The limited range of the solid a-solution offers considerable difficalties in the presence of two metallic compounds if the order of variations of the Hall constant has to be determined& This determination requires an increased precision of measurement which was achieved by the device applied,here. The authors conclude from their data that the solid aluminum solutions in a-titanium exhibit a complicated kind of interaction owing to the existence of the two compounds Ti Al and Ti Al which apparently have a hexagonal lattice. 6 3 They might result from solid solutions and correspond to compounds of the Kurnakov type (Ref. 12:. 1, 1. Korniloy, Izv. AN SSSR, OKhN, 19571 Card 3/8 21.568 8/020/61/137/003/018/030 Metallic compounds in the range of ... B103/B208 no, 4,.395). The diagrams of the Hall constant in the range of the y-phase in alloys with 46.16 atom% (33wt%) to 53-85 atom% 40.0 wt%) aluminum .0 atom//,, (36.02 wt,.).aluminum. It corre- show a sharp discontinuity at 50 sponds to the compound TiAl which was detected by other methods of physicochemical analysis. The equilibrium of the compounds T16Al, Ti 3 Al, TiAl and the proof of their existence in the'phabe diagram depend on the kinetics and on the conditions'of their formation which have to be further studied. The'appearance of'these compounds in the system Ti -'Al increases the heat resistance of the alloys and rapidly decreases their plasticity at an aluminum content of more than 7-8 wt~. There are I figure, I table, and 12 references: 8 Soviet-bloc and 4 non-Soviet-bloc. The reference to the English-language publication reads as follows: , M. Hansen, Constitution of binary alloys, N.Y. London, 19589 P. 139 (Ref. 1). ASSOCIATION: Institut metallurgii im. A. A. Baykova Akademii nauk SSSR (Institute of Metallurgy imeni A. A. Baykov of the Academy of Sciences USSR) Card 4/8 5-."410o 12, q 1 25855 S/020/61/139/004/015/025 B103/B2o6 AUTHORSt Kornilov, I* Is, Ustvayeva, No M,. TITLEs Heat of dissociation of Kurnakov's compounds Ni3Fel Ni3Mn, Ni3Cr, and Ni3V PERIODICAL: Akademiya nauk SSSR. Doklady, v. 139, no- 4, 1961, 880 - 883 TEXT: The heat of dissociation is defined as being the temperature of transition of a compound into a solid solution at the critical transition temperature. The authors recall that metallic compounds are formed from solid solutions (so g## in the system Cu-Au$ No So Kurnakov, S. Zhemahuzhnyy, V. Zasedatelev; ZhRFKhOt Al, 871 (1915))- In honor of their discover they were called Kurnakov compounds (I. I. Kornilov, Usp..khim vyp- 9, e1r045(1952)). In publications (especially of the non-Soviet bloc: F. Rhines, J. Newkirk, Trans. Am. Soo. Metals, _41, 1029, 1953), they are considered to be the product of a single atomic regrouping connected with the ordering of the structure in the homogeneous medium, no phase trans- formation taking place in this case. Although in the systems Ni - Fef Card 1/6 25855 S/020/61/139/004/015/025 Heat of dissociation of .... B103/B206 Ni - Un, and Ni - Cr,the above-mentioned compounds Ni 3Me are formed from solid solutions, only a dotted line of the ordering of solid solutions used to be drawn in their equilibrium diagrams. The phase transformations mentioned might, however, be accompanied by considerable energy conversions. In comparing the phase-transformation temperatures of Ni 3Me alloys in the three systems mentioned with the heat of formation of Ni 3V and Ni3Ti, the authors tried to gain new knowledge on the nature of transformations in these systems. They used the thermographic s.ethod by L. G. Berg and V. Ya. Anosov (Ref. 8: ZhOKh, 12, 31 (1942)) for the determination of the value of phase transformations of the systems mentioned in the title. This method 15 based on a comparison of the areas of peaks of differential heating curves corresponding to the thermal effects in the standard and the specimen. Iron was used as a standard. The thermal effects of the magnetic 06--~ ~ and the polymorphous /3 transformation of iron are known. On the basis of their values, the authors found the relative error of determination involved in the!method used here, by calculating the value of one thermal effect from that of the other. This calculated value is Card 2/6 2~855 5/020/61/139/004/015/025 Heat of dissociation of see B103/B206 compared with the value in the table,# The autt.ore established that the two compared values of the (3 Fe transformation differ by 2 - 5%, i.e., this diffeiLenoe lies within the range of accureicy of the method. Besides iron, nickel was also used as a standard for the determination of the ther- mal effects accompanying transformations in the alloys Ni - Mn, Ni - Fe, and Ni - Cr. The areas of the therdal effects were measured by geometric integration. Ni Me alloys were.prepared in the are furnace in an argon 3 atmosphere from electrolytic Ni, Fe, Mn, Cr as well as from carbothermic vanadium (V content 99.8%). On the basis of a chemical analysis, alloys corresponding stoichiometrically to Ni 3Me were used for the investigation. They'were subjected tot a) high-temperature-homogenization annealing, b) long lasting annealing at temperatures beloir the critical transformation pointt All alloys were annealed at 4500C excei?t Ki V which was annealed at 3 9500C. The thermal effects were measured after annealing for 700, 10001 and 1400 hr. Table I gives the results. The highest value of AR was obtained for Ni3Cr with 1400 hr annealing at 4'500C (0-41 kcal/g-at). This value is much lower than the AR values of Ni Ye' Hi Mn, and Ni V. The 3 3 3 Card 3/6 2%5 8 026/61/139/004/015/025 Heat of dissociation of B103/B206 authors presume that the compound forms here vory slowly, and that the alloy did not reach equilibrium. This problem Ve to be investigated further. The authors point out the high 6H valule which is considerably greater than 1, except for Ni 3Cr. The strength of the chemical bond might be of different nature in alloys annealed for a long time than In solid solutions. In the alloys investigated, the ordering processes are obviously linked with the formation of more stable metallic compounds. In the authors' opinion, they must have independent ranges of existence in the phase diagram of the system, and two-phase ran,Vs as phase transformation of first kind. The authors compare the data of Table 1 with the position of the respective metals in the periodic system. It is concluded that the 6H values of all compounds mentioned are commansurable and increase ~with the exception of Ni 3Cr) with the distance of the metal contained in the compound from the position of nickel in the periodic system. Consequently, a certain dependence of the properties of 'chemical compounds on the position of the components in the periodic system is maintained. The strength of the chemical bond in Ni 3Fe, Ni3Mn, Ni 3V, and Ni3Ti is apparent- ly also determined by the heat of formation (heat of dissociation). it Card 4/6 3/0, 61/139/004/015/025, 2PB Heat of dissociation of B103 B2b6 increases with increasing difference of the chemical properties of the g; inter4ating metals, and is thus connected with the position of.the reactin elements'in the periodic-system. Th4 increasing strength of,the chemical bond in the series Ni Fer Ni.Mnt Ni Or, Ni V, and Ni Ti must be reflexted 3 3 3 3 3 in the mechanical strength of these compounds, which, however, is to be investigated additionally. There are 4 figures, 1 table, 'and 13 referenceal 8 Soviet-bloc and 5 non-Soviet-bloo. The two references to English-language pub'lications read as follows: Ref. 6: P. 11jee6h, S. Sykes, Phil. Mag., 27, No. 185 (1939); Ref. 7: 0.. Kubaschewski,-et. al. Trans.*Farad. Soc., 220 214 (1954). The third one see in tAe body of the abstract'. -ASSOCIATION: Institut metallurgii im. A. A. Baykova Akademii nauk'SBSR (Institute of Metallurgy imeni A. A.'Baykov... of the Acade of Sciences USSR) PRESENTED: March 13, 1961,by I. I. Chernyayev, Academician SUBMITTEDt February 22, 1961 Card 5/6 29013 S/020/6!/140/004/014/023 9 MID B106/B110 AUTHORS: Kornilov, I. I., and Nartova~ T T. TITLE: Continuous solid solutions of metallides Ti-,,Al - Ti Sn in the system Ti - Al - Sn 1, 3 PERIODICAL: Akademiya nauk SSSR. Doklady, v, 140, no. 1961~ 829-831 TEXT; The authors studied the phase diagram of the ternary system Ti - Al - Sn. For this purpose, the properties of alloys of this system were investigated, the compositions of which are located in the section Ti3Al - Ti3 Sn. Thermal; microstructural, and X-ray structural analyses were carried outs and electric resistance and hardness were measuzed. The alloys were prepared fromTr-oo (TG-00) titanium sponge (limit of stability - 38 kg/mm2), and high-purity aluminum and tin. Crystallization and phase conversion in the solid state were studied in these alloys by 3ontactless thermal analysis in a plant designed by N. A. Nedumov (Ref. 16: ZhFKh,.jj, no. 1.- 184 (196o)). The phase diagram for the section T--; Al - T'_ Sn was constructed on the basis of results obtained (Fig. 1). 3 3 Card 1/4,-3 190i) S/02o/6-,,/14o/004/0I4/023 I I Continuous solid solutions B106/B110 The alloys cf this section crystallize in the form of mutually limited solid solutions on the basis of the solid P-aolution of the system Ti - Al and on the basis of the compound Ti- 3Sn., and form eutect-ic mixtures with the eutectic voint at 45% of T '3 Sn (- 20j'a' by weight of Sn), on slow cooling, these mixtures pass over into a continuous series of solid a(6)-solutiona with phase conversion. At 960'3C~~ the compound Ti 3A! is obtained by prclonged tempering from the solid a(6)--solutionsof the system Ti - Al., which,. in turn-, forms solid solutions with the comround Ti 3Sr.. In this state, the alloys of the sectiod Tj.,Al - Ti;kSn form continuous Isolid solutions with hexagonal crystal lattice.. The alloys s*udied exemplify a complicated phase equilibrium which considerably varies with temperature and conversions in the solid state. The above-menticned formation of the continuous series of solid SolUt4ons 'n long-tempered alloys may be regarded as a continuous replaaemert of tin atoms in the Ti 3Sn crystal lattice by aluminum atoms without change in the lattice type. There are 3 figures and 16 referen,~es; 10 Soviet and 6 non-Soviet. The three most recent ref erences to English-language pub'2 icati ons read as f ollows; Card 2A _-3 29013 S/020/61/140/004/014/023 Continuous solid solutions ... B106/B110 E. Ence, H. Margolin, J. Metals, .2, N2 4, sect. 2, 484 (1957); D. Clark, J. C. Terry, Bull. Inst. Metals, J, 116 (1956); P. Pietrokowsky, E. P. Frink, Trans. Am. Soc. Metalsq A2, 339 (1957)- ASSOCIATION: Institut metallurgii im. A. A. Baykova Akademii nauk SSSR (Institute of Metallurgy imeni A. A. BayYov of ihe Academy of Sciences USSR) PRESENTED: April 20, 1961' by I. I. Chernyayev, Academician SUBMITTED: March 27, 1961 Card 3/4-3 VOLj Abram Yevgenlyevich; AGEM, N.V., red.; ABRIKOSOV., N.Kh., doktor khim.nauk, red.; KORNIIg, I,_j,,,-doktor-khim.na:uk.. red.; "-~Wiim.nauk SAVITSKIY, Ye.M... o or , red.j OSIPOV., K.A.,, doktor tekbn.nauk.. red.; IGUSEVA, L.Na., kand,khim,naulc, red. ; MIRG&WVSKAYA, M.S., kand.khim.naukp red,; SHKLOVSKMA., I.Yu., red.; MURASHOVA, N.Ya... tekhn.red. [Structure and properties of binary meta3-Uc systems] Stroenis i svoistva. dvoinykh metallicheskikh sistem. Pod rukovodstvom N,V. Ageeva. Moskva, Fizmatgiz. Vol.2. [Systems of vanadium, bismuthp bydrogen., tungsten, gadolinium, gallium, hafnium, germaniump holmium, dysprosium$ europiums iron] Sistemy vanadiia, vismutaj, vodorodap vol'fr,qmP,, gadolixiia, galliia., gafniia,, germaniia., gollmiiag dispro- ziial evropiia,, zheleza. 1962. 982 p. (MIU 15:5) le Chlen-korrespondent AN SSSR (for Ageyev). (Alloys) (Systems (Chemistry)) (Phase rule and equilibrium) VULIF, Boris Konstantinovichp dots.,AfOktor tekhn. nauk; ROKAHDIN, Konstantin Platonovich, dots.) kand. tekhn. nauk; DUDDIIII, G.N., kand. tekhn.naukp retsenzent;JORVILOV, I-J., prof., red.; VINOGRADSMA, S.I., red. izd-va; PUKHLIKOVAN.A., tekhn. red. [Structure and properties of aircraft metalslAviatsionnoe metallovedenie. 2. izd.p perer. i dop. Pod red. I.I.Korni- lova. Moskva, Oborongiz, 1962 ' 503 OIIRA 15:11) (Steel alloys). (lionferrous alloys~ (Airplanes-41aterials) 39076 S/180/62/000/003/011/ol6 E193/E383 AUTHORS: Kornilov, I.I. and Yakimova, A.M.- (Moscow), TITLE: Creep'and structure of alloys of the titanium- oxy-gen-hydrogen and titanium-aluminium-hydrogen systems PERIODICAL: Akademiya nauk SSSR. Izvestiya. Otdeleniye -tekhnicheakilch nauk. Metallurgiya i toplivo, no. 3, 1962, 88 - 93 TEXT; Since most Ti alloys contain'H, 0 and Al (the,first two as impurities, the last,as-the main'strengthening alloying, addition;', the effect of these elements-on the.atkucture and creep-resistance of Ti was studied. The composition (wt.%) of the experimental alloys varied within the following limits: o.1-1.630% 0, 0.005-0.05% H and 1.05-7.86% Al. Creep tests were carried out at 500-550 on the Ti-O-H alloys and 2t 500 - 650 0C on the Ti-Al-H alloys. under a stress of 7 kg/mm in the former and 15 kg/mm 2 in the latter case; the results, correlated with the results of metallographic examination. led to several conclusions. 1) The creep resistance of Ti-O-H alloys decreases Card 1/2 Creep and structure .... 3-07 S/180/62/000/003/011/oi6 ;9193/E383 with increasing H content, oxygen having 1he opposite effect. Thus, for instance, the deformation of specimens containing 1 0.025 and 0.05% H after 5 h at 50 0 0 un er a 0.10~ 0 and 0.005.2 stress of 7 kg/mm was, respectively, 10, 29 and 48 min; the corresponding*figures for alloys containing 0.0511a H and 0.1, 0.2 and 1.25/6 0 being 48, 20 and 1 min. 2) As the 0 content of Ti -- increases, the solubility of H in the metal decreases. In addition, a change in the v content brings about redistribution 6f h between the a- and y-phases- 3) The creep resistance of the Ti-Al-H alloys also decreases with increasing concentration of H, the deformation of alloys containing 37; A! with 0.0052 0,025 and 0.055a' H after 50 h at 500 OC under a stress of 15 kg/mm being 15. 25 and 35 mm. Increasing the Al content to 5% (or more) increases the high-temperature strength of the alloy and decreases the harmful effect of H t~e deformation of alloys (after 50 h at 500 OC under 15 kg;mm ), containing 8% Al with 0.005, 0.025 and 0.05% H,bting; respectively, 2, 3 and 4 min, 4) As the Al content of th" Ti-Al-H alloy inereases,'the solu- bility of H also increases from 0.025% at 3-1/4 Al to 0.05% at 5% Al. SUBMITTzo October, 17, 1960 Card 2/2 1072h s/18o/62/00o/oo4/oo4/ooq E040/E435 AUTHORS: Ko-Chih-Ming,, Kornilov, I.I., Pylayeva, Ye.N.. (Moscow) TITLE: Investigation of the structure and properties of titanitim-aluminium-molybdenum alloys PERIODICAL: Akademiya nauk SS 'SR. Izvestiya.-Otdeleniye tekhnicheskikh nauk. Metallurgiya i toplivo, no.4, 1962, n4-ii& TEX7: Using the hot-hardness techniqub for a rapid assessment of the alloy properties as a function of temperature, an examination waB made of the hot-bardness and.creep of titanium- corner alloys of the Ti-Al-Mo terneiry system along sectiqn3 parallel to the Ti-Mo side of thb concentration triangle at aluminium contents of 0, 5, 10, 15, 20 ana 36% and at molybdenum contents from 0 to 10%. The testis were made in 'BA14-IM (VIM-11M) vacuum machine. The test specimens were melted in an are-furnace with a non-consumable tungsten electrode in an argon atmosphere and were vacuum-annealed at 11000C for 24-hours, then annealed again for 24 hours at 6000C and finally cooled with the furnace. The hardness (1 kg load) was determined in the interval 20 to lOOO*C (in 1000C stages) after a holding timeofl minute. The Card 1/3 S/180/62/000/004/004/009 Investigation of the structure E040/E435 hardness of titanium and of its alloy with 5Y6 Al dropped progressively with rising temperature, whereas the hardness of alloys with 10, 15 and 20/o Al changes little up to about 700 to 8oo0c. Molybdenum additions have a much less beneficial effect on the.hardness of titanium, espec4Lally at high temperatures: the hardness of binary titanium alloys with up to 5116 ko decroased with rising temperature. The hardness of titanium remained unchanged as the temperature increased to 500 to 6oo*c if the molybdenum content was raised to 10776. Studies of the effect of molybdenum additions on the har Idness of Ti-Al alloys showed that the hardness at room temperature rises when the Mo content is from 3 to 10%; at higher temperatures the hardness drops. The creep 10 of the alloys was examined at 7000C using a method described previously (Osipov, K.A., Vien-te-Cheng. Izv.AN SSSR.OTN. M I T., no.4, 1959). Molybdenum concentrations up to 1- 3% increase the resistance.of titanium to plastic deformation at 7000C but this effect disappears almost completely If the molybdenum concentration is raised to 10%. In ternary Ti alloys (with 5, 15 and 20% Al), the highest heat resistance at 7000C was observed in alloys with Card 2/3 40725 s/18062/ooo/oo4/005/009 E071/E133 AUTHORS: Kornilovq 1.1*j and Yakimova, A.M. fm6scow) TITLE: -diWe'-p and structure of titanium-chromium and titaniumrmolybdenum alloys containing hydrogen PERIODICAL; Akademiya nauk SSSR. Izvestiya.'Otdeleniye tekhnicheakikh nauk.. Metallurgiyet i toplivo, no.4. 196i, 119-125 TEXT: Since chromium and moly-bdenum enter the composition of many heat resistant titanium alloys, the creep and structure of Ti-Cr-H and Ti-Mb-H ternary systems was investigated. The alloys were prepared in a laboratory arc furnace with a tungsten e'lectrode in an atmosphere of purified argon, Specimens used were in the form of hot rolled rods 8 mm in dietmeter. Before.saturation with hydrogen, all specimenswere vacuo treated (10-4 mm Hg) at 700'*C for 24 hours and cooled with the furnace. Saturation with hydrogen at 700 OC for 10 hours and cooling with the furnace. The specimens were tested for creep by the centrifugical method..directly after hydroger; saturation without any additional heat treatmept. The chemical composition of alloys investigated is given (Cr and Mo Card 1/2 Creep and structure of ... S/180/62/000/004/005/009 E071/E133 from 0.5 to 30%). The microstructure of the alloys was studied by metallographic and microhardness methods. on the basis of the results obtained it was concluded -that: 1) Hydrogen decreases the resistance to creep of alloys containing from 0.5 to 15*,Q' Cr. 2) With increasing chromium content from 3 to 75 the solubility of hydrogen in titanium increases from 0.05 to 0.5%. 3).In titanium alloy containing 7% Cr, hydrogen strengthens both the a and p phases.; At 15% Cr the microhardness of the 0 phase decreases with increasing concentration of hydrogen due to the decomposition of the p phase and its impoverishment in chromium. 4) The resistance to creep of alloys of titanium with 3 and 10% Mo decreases strongly With increasing hydrogen content. On increasing the Mo content in alloys up to 20 and 300,1, their resistance to creep increases. 5) The solubility of hydrogen in titanium increases with increasing molybdenum content. There are 5 figures and 2 tables. SUBMITTED. October 17, 1960 Card 2/2 3 66- " 4 S/062/62/000/004/003/013 B110/B101 I Y00 AUTHORSt and Polyakova, R. S. TITLE: Study in the field of metal chemistry. Communication 3. Metallochemical properties of niobium PERIODICAL: Akademiya nauk SSSR. Izvestiya. Otdeleniye khimicheskikh nauk, no- 4, 1962, 565-573 TEXT: Niobium takes an intermediate position if the elements of the periodic system are arranged according to their electronegativity. 36 metals are electropositive, and nearly 40 are electronegative as compared with Nb, which explains its tendency of forming solid solutions with metals of similar electronegativity, and metallic compounds with elements of different eleotronegativity: (1) Nb forms a continuous series of solid solutions with metals whose atomic radii do not differ from its by more than 6-10., and whose electronegativity is.similar. (2) The formation of continuous solid solutions requires an isomorphous crystal structure of the components. (3) Limited solid solutions are formed with differences in atomic radii of 8-10 to 15-1 Vi and with slightly varying Card 1/3 S10621621000100410031013 Study in the field of metal ... B11O/B1O1 electronegativity. (4) The greater the.difference in electronegativity, the greater the tendency of forming,compounds. The metals P-Ti, O-Zr, V, Ta, Pap Ma, W, and U constitute the first family of elements forming a continuous series of solid solutions. The second family (Bep So# Yj Lap Acp Hfp Thp Ort Mnp Top Ret Fe, Ru, Os, Co, Rh, Ir, Ni, Pd, Ptj Cup Ag, Au, Zn, Od, Hg, B, A1j,qaj In, TI? C, Sip Go, Sn, Pb, N, P, As, Sb, and Bi) and 10 elements of the actinoid group (altogether 68 elements) form limited solid solutions wi'th Kb. The more electronegative the alloy metal compared with Kb, the more compounds are formed. The -third family (S, Sep Te, Fo. F, Cl, Br, 1, and At) forms, with Nbt only compounds with covalent or ion bonds. Some of these compounds have semi- conducting properties. An intermediate position is taken by 0, N, Bf C, and some other metalloids which, according to their reactions with Nb, belong to the second family but form, with Nb, nome compounds with covalent bonds. The fourth group consists of elements that do not react with Nb (Li, Na, K, Rb, Cs, Fr, Mg, Ca, Srp Ba, and Ra) and inert gases (He, Ne, Ar, Kr, Xe, and Rn). The metals of this group are more electropositive.than Nb, and differ very much in the ionic radius from the latter. Metal systems with a given number of elements can be well Card 2/3 XORKLOVI, 1. 1. (Moskva); NAMVAL,, T. T. (Moskva) Streos,~ture strength at 7001D in allOYN on, a Ti Al compound bass. Izv. AN SSSR. Otd. tekb. nauk. Hot. i topl. no.6:142-146 N-D 162. (MIRA 16:1) (TitwAuw-ainainan anays-Testing) (metals at high temperatures) 3/598/62/000/007/001/040 D267/D307 AUTHOR: Kornilov, I. I. TITLE. Metal chemistry of titanium alloys and the further. tasks of research SOURCE: Akademiya nauk SSSR. Institut metallurgii. Titan i yego splavy. no. 7, Moscow, 1962, Metallokhimiya i novyye splavy, 5-25 TEXT: In view of the ever increasing significance of titanium al- loys in engineering a detailed survey of this field is given. There are in all 17 elements (groups 0, Ia and lIa, except Be) which do not form solutions or compounds with Ti; 9 elements (groups VIb and VIIb, except oxygen) form with Ti many compounds, characterized by ionic or covalent bonds; 415 elements (including groups Ib - IVb, VIIa, VIIIa) not only form with Ti various pom- ounds, but also can form solutions in it; finally 9 eltments Zr, Hf, V, Nb, Ta, Cr, Mo, W and U) form with Ti a cohtinuous se- f -Gar cl 1/3. S/598/62/000/007/001/040 Metal chemistry of D267/D307 of solid solutions. The solubility of elements in Ti decreasesi as the difference between the chemical-properties of Ti and the element in question increases. There are 4 fundamental types of phase diagrams of binary Ti systems. The problem of phase equili- bria in these systems cannot be solved unless chemical reactions between the elements in solid sulutions are allowed for. From the behavior of Ti in binary systems it is possible to obtain the general features of its behavior in ternary and mote complex sys- tems. As regards the properties of mechanical stretgth.and heat resistance, various binary, ternary~and more complex alloys are adduced and described. The tasks to be given attention in the next future relate to the further improvement of the quality of Ti used, as initial product for high-grade alloys and the improvement of the technology and investigation of new high-strength Ti alloys.. In this connection it is indispensable to reduce the content of 09 N and H below -.ertain limits, and this cannot be attained without refining the metal. It is important to conduct further studies of new alloys based on the so-called intermetallic solid solutions, and of the Ti-Al, Ti-Sn and some ternary systems. Various fields Card 2/3 8/598/62/000/007/001/040 Metal chemistry of D267/D307 of application of titanium and its alloys.are described. There are 14 figures and 6 tables. The most important English-language re- ferences read as follows: M. Hansen, 'Constitution of binary al- loys', McGraw Hill, New York, 1958; J. H. Westbrook (ed .Y, 'Mecha- nical properties of izitermetallic compounds', John Wiley and Sons, New York, 1960. Card,3/3 S'A5P 62/000/007/0111/040 D244 D307 AUTHORS: Kornilov, 1. layeva~ Ye. N. and Volkova, Di. A. TITLE; Properties of the alloys of the ternary titanium-alumi- num-vanadium system SOURCE: Akademiya nauk SSSR. Institut metallurgii. Titan i yego splavy. no. 7, Moscow, 1962. Metallokhimiya i novyye splavy, 89-94 TEXT: The work is a continuation of previous investigations of Ti-Al and Ti-Al-Fe alloys. In this investigation the heat stabili- ty of Ti rich alloys of ternary system Ti-Al-V was investigated. Microstructure of the allo a at 6000C included either one o(-phase or two phases cx, and (