SCIENTIFIC ABSTRACT -

• Document Type: CREST
• Collection: Scientific Abstracts
• Document Number (FOIA) /ESDN (CREST): CIA-RDP86-00513R001757420012-2
• Release Decision: RIF
• Original Classification: S
• Document Page Count: 100
• Document Creation Date: November 2, 2016
• Document Release Date: March 14, 2001
• Sequence Number: 12
• Publication Date: December 31, 1967
• Content Type: SCIENTIFIC ABSTRACT

V,/--~? I k-21- ~
USSR/Chemical Technology. Chemical Products and Their Application -- Silicates.
Glass. Ceramics. Binders, 1-9
Abst Journal: Referat Zhur - Khimiya, No 2. 1957: 5151
Author: Tunanov, S. G., Maslennikova, G. N.
Institution: Aca~d aces USSR
Title: Thermal Analysis as a Method for the Determination of the Degree of
Kaolinization of Spodunene
Original
Fuulication: Dokl. AN SSSR, 1956, 107, No 1, 119-121
Abstract: Thermal analysis of 3 specimens of spodumene (S) of different degree
of disintegration, has revealed that on alteration of S the degree
of its kaolinization increases. Chemical analyses and determinations
of the specific gravity, have shown that with increasing extent of
S changes the content of Na20 increases and that of U20 decreases;
losses on calcining become greater; specific gravity decreases.
Card V1

1. TM:.;v'-cv' S. I". .
2. U-,.-,R (6r;))
4- Clerwmic Industries
.1
7. Quality of ceramic tiles for lining digesters, Bum. prom. 28, no. 3, 1953.
9. Monthly List of Russian Accessions, Library of Congress, May -1953. Unclassified.

,TW-,-A-N-OV-, SavelJ,.y vanode
__L_ -t!,LALEKSEYEV, V.A., red.; ZYKINA, T.N.,
tekhn. recL
[Elementary algebra)Elementarnaia algebra; posob4e dlia
eamoobrazovaniia. Izd.2., dop. i ispr. Moskva, Uchpadgiz,
1962. 855 p. (MIRA 16:3)
(Algebra)

TWHOY, aavej~y Ivanovich; MCLCHANOV, M.P., red.; KOMYEVA, V.I.,
t -ek6- . r-a r. --
Momentary algebra; textbook for self st~dvj Alementernaia
algebrar ponobic d1la samoobrazovaniia. Moskva# Goo,uohobno-
pedagog,isd-vo H-va proov,RSISR9 1960, 685 p.
(MIRA 1M)
(Algebra)

~ TUIMANOV, S.U., mastor-abmurovahchik
Some proposals on the maintenance and repair of digesters.
Bum.prom. 37 no.6-.21-22 Je 162. OURA 15:6)
(Autoclaves-14aintenance and repair)

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S/137/6i/boo/01 1/118/123
Ao6O/A1O1
AUTHORS: Tumanov, V.I., Anikeyeva, N.P.
TITLE: Spectral method of analyzing ammonium molybdate for admixtures
PERIODICAL: Referativnyy zhurnal, Metallurgiya, no. 11, 1961, 10, abstract
11K59- ("Sb. tr. Vses. n.-i. in-t tverdykh splavov", 1960, no.3,
64 - 71)
TEXT: A method has been worked out for the spectral analysis of
(NH4)2M0G for admixtures of Ca, Mg, Al, Fe, Si, Mn, Ni, NP in the concentra-
tion range (in %): CaO 0 001 0.02, r4go oxoo8 - o.ol4J, A120 oM4 - 0.07,
Fe 03 0 008 - 0.05, Ni 0.001 0.02, Mn 0.002 - m4, Sio, 010~ - 0.2, NaCl
0.82 - 0'.4. The ammonium molybdate is converted into a carbide having very
low volatility. The most convenient form of a compound for the formation of
carbides is Mo anhydride which is obtained by calcining (NH4)2MOO3 at a tem-
perature of 4500C. The analysis is carried out on theRCII-22 (ISP-22) spectro-
graph. The exciter source for the spectrum is a dc are obtained from a BAP-33
(VAR-33) mercury rectifier. The current is 5 amps, one uses carbon electrodes
with 6 mm diameter where the upper is turned to a cone with truncated surface
Card 1/2

S/137/61/000/011/118/123
Spectral method of Ao6o/Aloi
2 mm diameter the lower has a CUP 3 mm diameter and 3 mm depth. The Mo anhydri-
de is mixed with the carbon mixture in the ratio 1:1. This ratio makes it
possible simultaneously to obtain carbides, carry out the exposure without
rnsting, and lower the current intensity. The relative error of the method
constitutes 4 to 17%. lt~,takes about 2.5 h to determine 8 elements in one
assay.
L. Vorob'yeva
[Abstracter's note: Complete translation]
Card 2/2

TUNWOV, V.I., inzh.
i '- - , , .
'- --fn~uctive imDedances of a synchronous machine with an extraneoijaly
.b short-circuded magnotic circuit under steady-stage symneetrical
operating conditions. Vest. elektroprom. 31 no.10:7-10 0 160.
(MIRA 15:1)
(Electric motors, Synchronous) (Magnetic circuits)

28879
S/l8o/61/ooo/oo4/Ol7/O2O
E073/E535
AUTHORS: Baskin, M.L., Savin, A.V., Tumanov, V.I. and
Eyduk, Yu.A. (Moscow)
TITLE: Mutual solubility of copper and molybdenum and
certain properties of molybdenum-copper alloys
PERIODICAL: Izvestiya Akademii nauk SSSR. Otdeleniye tekhnicheskikh
nauk, Metallurgiya i toplivo, 1961, No.4, pp.111-114
TEXT; Mo-Cu alloys are extensively used for electric
contacts. The authors prepared alloys containing 1.5 to 14% Cu
by means of current powder metallurgy methods. Sintering of
molybdenum was carried out at 17000C and the alloys of molybdenum
with low contents of copper (1-5 to 10% by weight) were sintered
at the same temperature. At lower temperatures, either no sinter-
ing took place at all or the material was very porous, The alloy
with 14% Cu sintered at 16000C. The porosity of the,produced
alloys (determined metallographically) was about 0.6 volume % and
thot of pure Mo was about I volume The grain size of the
molybdenum phase was approximately the same for all the alloys and
also for pure molybdenum, i.e. mainly 25-30 ji. To obtain grains
Card I/

28879
Mutual solubility of copper ... s/18061/ooo/oo4/017/020
E073/E535
of this size molybdenum had to be sintered for a duration almost
twice as long as that of the alloys. The properties of the
starting materials Mo and Cu, were as follows: bulk density
1.60 and 1.49 g/cm respectively; adsorption of methanol vapours
0.200 and 0.026 mg/g, respectively. The average grain size of
the starting powders, Mo and Cu, was 1 to 2 IA. To prevent
contamination with iron, the powders were mixed in molybdenum lined.
mills. The specimens were sintered in molybdenum boats in
resistance furnaces with an open molybdenum heater in a hydrogen
atmosphere for a duration of one hour and the specimens of pure
molybdenum for a duration of two hours. Heat treatment was as
follows,t heating in a hydrogen atmosphere to 9500C, holding at
that temperature for 5 hours and quenching in oil at room tempera-
ture. Data on the Mo-Cu alloys are given in Table 2, the column
headings from ieft to right being as followst Cu, wt.%; specific
weight6d, 9/cm ; electric rebistmnce x 102- Ohm mm2/m;
~' x 10 /deg; phase composition, Mo denoting Mo-base phase,
Cu - denoting copper-base phase (To W& - ditto); lattice parameter
kX; Mo-base phase, Cu-base phase. The tabulated electric
Card 2/~

28879
Mutual solubility of copper ... s/18o/61/000/004/017/020
E073/E535
resistance values are averages from 36 measurements, whereby the
maximum error was +2Yo and the deviations from the average value
did not exceed 0-3~75- The coefficient of linear expansion was
determined by means of a dilatometer with quartz rods and
indicator head in the temperature range 18 to 400*C, the error
being within the limits of +2.5%. To determine the influence of
admixtures which'are importEnt in the industrial manufacture of
Mo-Cu alloys, a aeries of melts were produced containing
admi:~tures of C, Si and Sio,,. Table 3 gives the obtained
results for Mo-Cu alloys with 3, 5 and 8,41 Cu, respectively and
the following admi xtures P wt.%: 0.05'a C, 0.05% Si, 0.10% Si,and
0-500% SiO (e -10 Ohm mm /m; a,RX). The influence of nickel
(wt.%) on 2the electric resistance ( () x 102 Ohm mm2/m) of Mo-Cu
alloys with 5% Cu was as follows: 0 - 7-10; 0.5 - 10-31;
1.0 - 12.94; 3.0 - 14.92; 5.0 - 15.29. L. G. Grigorenko,
A. A. Maksimov and A. A. Cheredinov participated in the experi
mental work, L. Kh. Pivovarov carried out the X-ray structu
analysis and M. N. Nalimova carried out the metallographic ral
investigations. There are 3 figures, 4 tables and
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28879
Mutual solubility of copper ... s/i8o/61/000/004/017/020
E073/9535
12 references: 4 Soviet and 8 non-Soviet. The English-languago
references read as follows: Ref-3, C. L. Sargent, J.Amer.Chem.
Soc., 1900, v.22., P-783; Ref-7, M. Hansen, Constitution of
binary alloys, second edition, New York - Toronto - London, 1958;
Ref.12, If. P. Syks, R. Kent,, van HorA and C. M. Tucker, Trans.
AIME, 1935, v-117, P-173.
SUBMITTED: July 15, 1960 Table 3
3% CU 5% CU 8% CU
PX1
'0.-I ... - a. M.
Vx
7.74 3.1397 7.10 3.1397 7.25 3.11,97
5 7.65 3,1395
0.0506 C 8.55 3.1393 7.7
0 050/0 S. - - - 8.58
0:10% S1 - - 9.61 -
0.500,4 SIO, 17,99 3.1375 17.40 -
Card 4/

30904
2L1 OD S/180/61/ooo/005/016/018
E202/E335
AUTHORS: Funke, V.F., TumanoV2 V.I. and Trukhanova, Z.S.
TITLE: The effect of alloying on the structure and propertim
of tungsten carbide-cobalt alloys
PERIODICAL: Akadeniya nauk SSSR. Izvestiya. Otdeleniye
tekhnicheskikh nauk. Metallurgiya i toplivo, no- 5,
1961, iol - 1o8
TEXT: The authors briefly describe the properties of the
cermets WC-Co, TiC-WC-Co, WC-Ni and TiC-Ni in the first part
of the paper and, in particular, the relations between the
composition of the carbide phase and structure and properties
of the above systems. The effect of the binding phase, i.e.
Ni or Co, on the overall hardness and bending strength is also
described CAbstracter's note: this part is largely a
recapitulation of the data known in the West from such sources
as Dawlhl, Norton, Skaupy, Schwarzkopf, Kieffer et al
The original contribution of the authors comprises studies on
the effect of small additions of Cr, Al, Mo, Cu and CrB on
the structure and properties of the WC-Co alloys. The alloying
Card I/$ ~

S13 ROOYh/000/005/oi6/oi8
The effect of alloying E202/E335
components were introduced to the mixture during grinding. The
final analysis was carried out with the help of X-ray
diffractometry of -the sintered alloy and separate analysis of
the binding and carbide phases. Separation of the phases was
carried out electrochemically. The samples underwent bending
tests and their hardness was measured (VPN) at 20, 600 and
800 OC. The chemical composition and lattice parameters of the
binding and carbide phases are entered in Table 2. Whereas
Cu and Al are both readily soluble in the binding phase in any
quantity, their interaction with the carbide phase varies.
Whilst 570,10 of the Al passes into the carbide phase, none of
the Cu reacts with it. Mo and Cr distribute themselves between
the carbide and binding phases which will contain some of the
dissolved WC. It was also observed that, at room temperature,
all the alloying elements with the exception of Cu, lower the
bending strength of the WC-Co. This lowering is greatest with
CrB, followed by Al, Cr and Mo. Cu additions up to 1% improve
the bending strength. However, additions in excess of this
figure lower both the strength and hardness of the WC-Co alloys.
Card 2/0~

( 0
S/18OR9000/005/ol6/o18
The effect of alloying .... E202/4335
The authors stress the fact that the alloying of the carbide
phase should be effected with additives which, in addition to
-increasing the hardness and refractory properties of the carbide
skeleton, will also improve its wettability with respect to the
binding phase. The optimal conditions are reached when each
grain of the carbide phase is fully wetted, i.e. when the
carbide phase is discontinuous. On the other hand, the
composition of the binding phase should cause a minimum lowering
of the strength and plasticity of the alloy at the ambient
temperature, while securing maximuni possible strength at the
working 'i.e. high) temperature. The X-ray-diffraction studies
urere carried out by A.Ye. Kovallskiy and L.Kh. Pivovarov.
There are 4 figures, 3 tables and 16 references: 11 Soviet-bloc
and 5 non-Soviet-bloc. The four latest English-language
references mentioned are: Ref. 3 - R.P. Felgar, I.D. Lubanh
'Proc-*--Amer.Soc..Fest Mater., 1957, 589 770-788; Ref. 9 -
N.M. Parilch, J. Amer.Ceram.Soc., 1957, 40, 10, 335-339;
Ref. 10; M. 111men1k, N.M. Parikh, J. Anier.Soc., 1956, 39, 2, 60.
Cermets 1; Ref. 14 - J. Phillips, L. Welfred,J. Inst. Metals,
1956 mqj, v- 23, London. The Institute of Metals.
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30904
s/l8o/61/000/005/ol6/ol8
The effect of alloying .... E202/E335
SUB'MI'ITED: January 28, 1961
Table 2: Chemical composition and results of the X-ray
diffraction study of the binding and carbide phases of
WC-Co alloys.
Key:- I - Alloying component; 2 - Co, wt.%;
3 - Alloying component, vrt.%;
4 - 'Content of binding phase; 5 - Alloying
component; 6 - wt-%; 7 - at.%;
8 - Alloying component in carbide phase;
9 - Lattice pavameters in kX; 10 - WC-phase;
11 - Solid so lution based on cobalt (a);
12 - % on the basis of total content in the
alloy.
Card

S/180/w loooloof-w A 1 7/0'~O
E071/9515
,~I: MOW- Funke, V. F. , Haski n, W 1- and
-Rovikova, r.A. CNIOSCOW)
PhVSiC,11 TWOTI*zrtid-s of' the allov.-
C Ohn I t
J m; i~,~ N I-, -Akademi-va nouk SS.-;R, I-Avestiya, 01.df,14-nive
tPL.hnicheskikh nank- kfotaLlurgi-vi i tonlivo,
No.6, 1961,
Sy--citematic data on 11w physical vrnili-tiew rwl'
11"V4, not. been rmbli -thed and . thore Corp, th, ;m t
v.'i ted the snecil'i c ri-,Cjs rnflct-, the Volln~r IttriOn I w'j
ot- Vft c i ent, ol* J i nea r exminsi on and the hardness o t i1i:--k k A ov,
i ning varlous cmanti. L i es, of* the hi rid or nhase wi! h var its tig
~--17e- OV the tung.,iten carbido gernins. For the tests, .ppcjmen~
coilta:i,i,ing 0 to J00'A) Co and containing b wi. Co we r e
,nx-r-stigated, differing as regards the size of the ilmv,~Opn
-,-rhirio grain, The -Oloys were prodiwed nccorrlin~.r to -ta~i#Vsv-d
P xchvlo 114zv~ nie main stri es of, a I I ov-z with varimis cont em ~ ot
hirder had a practically equal avoragp diameter of' the tvingsten
"ard 1/4

HIV'RJ nrcmert j es of 180/0,) oooloohfo 17 /()2 1)
7 3 P `9 -1
a r 1) i d f- r a i n2 The nfta-e comvwa ii~irn of' the fif h--
t, r-oij -ahoo it the entire rnnize of' chatisres oV file CO content
Oll -i I a ti Wphn-e jir vjjjq -;ojid molutic)n (it' t:11tiesteft and CAVi'011 III
0 :-j VC) I
t 1,11o lint i tv Of .11 loys d i If oxceed
tne tiintrsten carbide had a iiorosi t.v of' I Th v s i tit #, r nif
s-nerimt-ils were quenched and arineal;?d-, thft (Itionchi".< ctinsisl vd ol
beat ingr in a hydrogen atmo.9phore at Woo% For 12 hoiirs niifl
I Ontitiv in the water-cooled cool er of the furnace - The Ing
tv,, Pat 10000C for 12 hours in a hydrogen .1t.mosohere Vol lows-d bv
ing tn 8000C and holding at that. tviivt~eritiire t*or 24 hotirs
I) dullel! coo ling to room temnerature at ati averaye rat e of'
I C/ in -I nThe specific reuistance e. Llif! MCICIIIIII!~ o!'
E. the coefficient of linear expatision !i ond the
11 were determined on nuenched and a nn P a J P. d ,z n f- r- I m 4- n..;
Me ~-,vevi 1,j c electric reRistance was determined bv t iie c-11peliqo-
t ton welhod using a potentiometer, the ei*ror hpiiit,-, '-! 0
the copfficient of linear expansion was determined wi th I
quartv rod di.latometer in the range 18 to 420"C u-tth all d-v !-~r of
J.5%, the Young moduliis was determined by it dYnamic mr-thod Ivi th
Card 2/4

Physical properties of ... S/180/61/000/006/017/020
E073/E535
an error of 1%. Fig.1 shows the dependqnce on the.cobalt content,
wt*% of the following: apecifij rosistnnco 11ohm-cill (a)-,
modulus of elasticity E, kg/mm- and the coefficient of,linear
expansion a, I/deg (,'); hardness H , kg/mm2 (6). Curves I and 3
after quenching, curves 2 and 4 - Nafter annealing. The obtained
experimental results show that the specific electric resistance
is the most sensitive physical characteristic of WC-Co alloys which
provides an indication of the state and the composition of the
binding and the carbide phases and of the structure. The modulus
of elasticity and the coefficient of linear expansion indicate
predominantly the quantitative relations between the tungsten
carbide and the cobalt in the alloy and depend little on heat
treatment and composition of the binding phase. The modulus of
elasticity changes considerably with the.grain size of the tungsten
carbide. The results confirm the view of the existence of a
continuous cobalt phase in alloys of this type. L. G. Grigorenko
and A. A. Cheredinov participated in the experiments. There are
2 figures and 4 references: 2 Soviet-bloc and 2 non-Soviet-bloc.
The English-language references read as follows: Ref.It Dawihl W.
and Hinnuber J. The~structure of hard metal alloys. Kolloid-Z.,
Card 3/4

Phyaical proportion of *at 5/180/61/000/006/017/020
E073/E535
1943, 104, No.2/3, 233; Ref.2t Gurland J. and Norton J. Role of
the binder phase in cemented tungsten carbide-cobalt alloys.
Metals, 195~-., 4, No.10, 1051.
SUBMITTED; June 18, 1961
V
Card 4/4
e& s-2 A-4
goo
L too
CO. 6RC 0 15 32 ON RU 80 C"~ firm'.
D is J2 q8 64( 80
Fig.1
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7,
A--c'c'-Fs*3*'io'N n's- '-'A*'P-4"o3-'4G5'5--'---- 8/0*126/6h/017/Ooh/0572/0577
AUTHORSt Kreymerj Go Sol Tumanovo V. I.;- Kamenskayas Do So; Pavlova,' Zo I@ I
TITLE: On the resistance limit and the mechanism or failure of the motsi-caramio
solid alloy of WG and Go at compression
SOURCEs Fizika metaLlov i motallovedeniye., v* 17p no. 4. 1964# 572-577
TOPIC TAGSs resistance limitj yield stressp stress analysiss cobalt# carbide
phase.. dislocation effect # tunistan carbide
ABSTRACT: The purpose of this work was to obtain systematic experimental data on.
the effects of composition and carbide grain size on the resistance limit of the
allay WG-Co during compression. Five sets of alloys were prepared with varying
sizes of carbide grains (1,4s.1.7. 1-9s 3.3. and 5*3 ~Q* In each set specimens
,i were prepared containing varying percentages of cobalto The different grain
sizes were obtained by changing the initial temperature at which the powder was
formed, The results showed that (with increasing cobalt content) the resistance
limit increased initially and then decreased monotonicallyj all the curves reached
a maxim=s The highest value of the resistance limit (500 kg/=2) for a grain
size of 1A-14 A was attained for 5% by vt (6*6% by vol) of cobalt in the alloy.
r7
If (jC d !I
Ell ~11

ACCESSIM Rl AP4034055
The resistance limit is given by the theoretical soqpreseion
(Sr) A + B;
(Sr + D,'
X
where W is the resistance limitp ST the yield limit, v the volumetric content ofj
Co. and A,B,,C,,D are constants* The theoretical dependence of the resistance limit i
-on the grain size is given by
+ B';
d
I'd + D',
where d is the grain size and a.,bjB'Dt are constants. The form of the experimental
curves agrees with these expreasions, Finally, it was shown that these dependences
were adequately described by the dislocation theory of E. Orawan (Pymposium on i
Internal Stresses in Hetala and Alloyap Insto Metals,, Lobdon., 1948) ard of F. V.
Lenel and G* S& Anoell (Powder Metallurgy* Proo. interns Conferonce hold in HOJO)
June 13-17s 1960# p.267). Origo art* bass 7 tormass, 3 figures,, and I table*
ASSOCIATION: Vaeso cn eplavoy (AU Union Institute for
,13TzT inatitut tverdy*kh
'a
~2/3 Solid Al oys

.op,
ACCEMION XR: AP4034055
I SUBMTTM i l0tovO
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1 -Mg
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rnt-liinu was in a helium'-almosphere than in a hyarogen aLMUSPEIULU,

Loli
i2;

ACCESSION NR: AT4030800 S/0000/63/000/000/0141/0151
AUTHOR: Tumanov, V. I., Funke, V. F., Belen'kaya, L. I. Usolltseva, L. P.
TITLE: Effect of alloying on surface tension of the iron group metals and the wettability
of aluminum oxide
SOURCE: AN UkrSSR. Institut metallokeramiki i spetsiallny*kh splavov. Pove~khnostny*
ye yavleniya v rasplavakh I protsessakh poroshkovoy metallurgii (Surface phenomena In
liquid metals and processes in powder metallurgy). Kiev, Izd-vo AN UkrSSR, 1963,
141-151
TOPIC TAGS: cobalt alloy, nickel alloy, liquid phase surface tension, alloy surface
tension, aluminum oxide, aluminum oxide wettability, cobalt copper alloy nickel copper
alloy
ABSTRACT.; The effects of alloying Co and Ni with Cu, Mo, W or Ti (0. 5, 1. 5 and 20 at.
%), as well as carbides of the latter three (5 at. %), on the surface tension of tbo liquid
phases and the wetting of A120.3. were studied on alloy samples (h = 5-6 mm, 12 mm)
1/6
Card

SM
ACCESSION NR: AT4030800
and A1203 substrates (h = 4 mm, 20 mm, porosity up to 0. 2%). Tests were carried
out in a vacuum (5 x 10-5 mmi Hg) at about 1500C (1400C for Cu-contafning alloys).
The contact angle 0 was determined experimentally, using the droplet-at-r6st method
tension and work of adhesion W
(accuracy 1-2%). Surface tension Interphase
L A
were calculated. As shown in Fig. 1. of the Enclosure, addition of up to 1. 0 at.
alloying elements, especially Cu, lowered 0, but further additions had little effect.
Small amounts of alloying elements (0. 5-1 at. To), except for Ti, also low
ered j (see
Figs. 2 and 3 in the Enclosure). Alloying with 5 at. % tungsten carbide lowered ID and -:11
oters in NI
slightly in both Ni and Co; molybdenum carbide had no effect on these param
and little effect In Co. Only titanium carbide lowered 0 significantly in Ni. (from 120 to
62*) and Co (from 120 to 90 while simultaneously increasing the surface tension.
X-ray diffraction patterns of the contact areas between the drop and the substrate show
that reactions take place between the liquid metal and the substrate, resulting in
L with a spinel structure.
formation of a transition layer containing CoAl.94 and NiA1204
In the case of N1 alloyed with titanium carbide, the transition zone also contained TIC,
Tio and NiAl. The authors demonstrate relationships between E), e_. and WA, On
2
Card 2/6

ACCESSION NR: AT4030800
the one hand, and the atomic diameter and thermal stability of the alloyin component
oxides, on the other. The lowest E) (62') and maximal WA (3600 orgalcmg) were found In
Co + 5 at. % TIC, "T'he X-ray structural analysis was carried out by. Eng. N. S.
Urazaliyov. 11 Orig. art. has: 5 tables and 6 graphs.
ASSOCIATION: Vsesoyuzn*y nauchno-isoledovatellskly institut tvardy*kh Bplavov, Moscow
(All-Union Scientific Research Institute for Solid Alloys)
PUBMITTED: 23Nov63 d ENCL: 03
SUB CODE: MM NO REF SOV: 005 OTHER: 006
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ACCESSION NR: AT4030~po
flo 2
Ito
~3 11
20
to.
ENCLOSURE: 01
Fig. 1. Contact wetting angle (0) for Ni, Co and their alloys on an A1203 substrate, alloyed
with W (1), Mo (2) and Cu (3). Ordinate = 0 in degrees; abscissa = at. % alloying
element.
Card 4/6

ACCESSION NR: AT4030800 ENCLOSURE: 02
Fig. 2. Surface tension of Ni and its alloys (A120 ) qbstrate), alloyed with W (1),
Mo, (2) and Ca (3). Ordinate In ergshm ; abscissa = at. % alloying element.
Card 516
I

ACCESSION NR- AT4030800
1
ENCLOSURE: 03
1
Fig. 3. Surface tension of Co and its alloys (A1203 substrate), alloyed with W (1),
Mo (2), Cu (3), 0. 5 at.% Ti (x). Ordinate and abscissa as in Fig. 2.
Card 6/6

?.2 Oct sl DI
3170
S/136/61/000/012/oo4/oo6
E193/E383
AUTHORS: Tumanov, V.I., Baskin, M.L. and Anders, N.R.
TITLE: Some properties of cobalt-bonded tungsten carbides
PERIODICAL: Tsvetnyye metally, no. 12, 1961, 68 - 73
TEXT: Cemented carbides are used in increasing quantities
as materials of construction and this prompted the authors to
undertake the present investigation, whose object was to
dete-'wine the Young modulus, E , electrical resistivity, (0
and linear coefficient of thermal expansion, a , of WC-Co
alloys in relation to their composition and structure. The
composition of experimental alloys is included in Table 1.
The results of measurements are reproduced graphically in
Figs- 1-3, where the curves marked )I, C and B relate to
specimons with the average gy-ain size 1,2 - 1.5 iL, 1.5 - 2-5
and 3.4 - 5#0 It, respectively. In Fig. 1,
E (kg/mm 2) is plotted against the Co conteat (wt.%) in the
alloy. The concentration dependence of a(10-6 /00 and
Card 1/6

31740
S/136/61/000/012/oo4/oo6
Some properties of .... EIL93/E383
,0 (amm2/m is similarly represented in Figs. 2 and 3. The
general conclusion reached was that E, a and (0 depend not
only on the composition (Co content) but also on the grain size
of cemented carbides, the maximum value of each of these
properties being attained in finely-crystalline materials.
There are 3 :Ugures, 5 tables and 17 references: 7 Soviet-bloc
and 10 non-Soviet-bloc. The four latest English-language
references mentioned are: Ref. 6 - A.G. Jolmson - Technical
Note 3309. Nst. Advisory Committee on Aeronautics, Washington,
D.C.D, CC 1954; Ref. 7 -.E. Lardner, Me.J. Gregor. Inst. of
Metals, 1952, no* 8o, 369; Ref. 8 - Felgar. Lubahn, American
Society for Testing.Materials, 1957, v-57; Ref. 9 - W.W.Wellborn,
Mater. Design Engns., 1959, v.49, no. 2, 79.
L.G. Grigorenko and A.A. Cheredinov participated in the work,
Card 2/6

Card3/~
XifMMVCCXM2 COCTAR B
m
u u u
BUM 5.77 0,05 3.16 0.37
,BK6M 5. M0,10 6.95 0.39
- - 9,93 0.44
BKIOM
BK15M 5.11 0.06 15,15 0.42
BK20M .- - 19,81 0.37
IMA 6.60 0,03 5,80 0.37
BK4 5,79 0.05 4.01 0,35
BK6 5,78 0.06 6.04 0.38
BK8 5.65 0.05 7,86 0.38
BK!5 5.22 0.04 14.73 0.41
BK20 4,92 0.05 19i8l 0.42
BK30
4.30 0,05 30.20 Oi37
BK4B 1 5,96 0 07 1 4.201 -
BK6B 578 0:12 600 -
BK8B 5.70 10.08 8:26 0 .36
31740
C-D
O,lr 15.03
0.10 14.86
0,10 14.53
- 13.91
0,04 13.61
- 14.92
0,12 15,07
- 14.85
- 14.65
- 14.02
0,11 13.54
0,14 12.67
1 0.15 1 114'.99~
0,20 4.81
0.09 14.52
Cs~"2,
CL
tf
c
Jrpyana
116 264
132 93.5 243
200 93.5 194
M &9,2 129
204 86,5 99
!22 90,7 172
rpynna
153 90,2 146
152 Y) ,9 169
198 88.9 140
212 87,9 103
218 87.0 87
226 85,0 63
rpynna Ic
165 1$9.7 1 B8
158 88.5 80
162 86.7 66
BKIIB
._I. 5,44 1 P~jl_ I I L~061 0.39 10.30 1 14,391 175 186.7 1 -35
(D (n
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Card' 1k1
, aoO.2 - HCT 0 13 27- 26 14 0 8 2 .- 0-

31740
S/136/61/000/012/004/006
Some properties of .... E19VE383
Table 1: Composition, physicomechanical properties and micro-
structurb of tun-gsteii-cobalt alloys studied in the.
present investigation
Key: 1 - Chem -ical composition, Oj'o'; 2 - Properties;
3 - Microstructure; 4 - 'Volume percentage of
WC particles of the sizes (11) ...
5 - total carbon; 6 - Gom~ined carbon;
7 - specific gravity, g/cm 8 strength,
kg/mm 2 9 - hardness, HRA; 10 Coercive
force, Oe; 11 - Porosity, 90'; 12 Maximum
size of individual pores, IL; 13 Graphite
0-'; 14 - Fine-grain alloys;
inclusions,
15 - Average.grain-siz-e alloys; 16 - Coarse-
grain alloys.
The remainder is tungsten and additions of other elements,
(Si, Al, etc.)
41..*, Dashes indicate that the pore dimensions are less than 5 1'.
Card 5/6

31740
S/136/61/000/012/Ooli/oo6
D*193/r,,383
Fig. 2:
Ito -
4,vo
WS

cl

p4
8 12 is v N 11 J?
Card 6/6
Fig. 3:
Some properties of ....
Fig. I.:

S/18o/62/000/002/011/018
E040/E135
AUTHORS: Funke, V.F., Novikova, T.A., and Tumanov, V.I.
("Moscow)
TITLE; Structure and properties of
tungsten-carbon-cobalt-~iplybdenum alloys
PERIODICAL: Akademiya nauk SSSR. Izvestlya. Otdeleniye
tekhnicheskikh nauk. Metallurgiya i toplivo,
no.2, 1962, 113-118
TEXT: The results are reported of an investigation of the
phase composition, chemical composition and structure of the
W-C-Co-TN1o alloys with 80 and 47% W contents. Special attention
was paid to the changes in the alloy properties as a result of
var.~atlon In their Mo and C. contents. Alloys wiih 809 W
(remainder carbon and cobalt) were found to be suiiable for
many industrial purposes and those with 47% W find application
in X-ray structural analysis of the cobalt-base solid
solutions. The test specimens were prepared by powder
metallurgy techniques, starting with powders of W, Co and Mo,
,Card l/ 4

Structure and properties of ... s/18o/62/000/002/011/0113
E04o/E155
by PrOssing and sintering at 1450 OC (for alloys with 80ye 11) and
1250','OC (for alloys with 475' W). The above sintering conditions
were~found to give alloy specimens with the highest density and
the best ultimate bending strength. The specimens were theh
ann6aled at 1200 and 1000*0C. for 2 hours and at 800 OC for 24
houi~..~ and allowed to cool, together with the furnace, at the rate
of about 1.5 OC/min. The ultimate bending strength was measured
at '20 and 800 OC and the hardness of the test alloys was
r-etermined at temperatures in the range of 20 to 1000 OC. In
addition, determination.of the phase composition of the alloys
was made by means of X-ray structural and chemical analyses.
Special analysis was made of the cob-alt and carbide phases. An
iO-crease,in the Mo content of the test alloys$ while the tungsten
and carbon 6ontent are*kept constant, was found to produce a
change iri:t1lb'phase composition of the alloys. According to
metallograpffic analysis, the two-phase structure is retained by
alloys wkeh ,80% W when the molybdenUm content is raised from 0
to 1 5 the',two phases being turigs.,ten carbide and a cobalt-base
solid solu'i* a or higher, a
oil. At a violybdenum co:*tent of 35"
Card 2/,.,4..,.

Structure and properties of s/18o/62/000/002/011/018
E040/E135
third phase was found to appear. The structure of this phase
was found to be identical with that of the ql-phase present in
the W-C-Co system (double carbide of tungsten and cobalt).
The quantity of this third phase was found to rise with
increasing molybdenum concentration. In the alloys with 47% W,
the third phase appears at molybdenum contents exceeding 10%,
but an increase in the carbon content at a constant molybdenum
concentration leads to a reduction in the quantity of the third
phase. At the carbon content of 5.36% or more, the test alloys
-with 80~,Q' W and about 3.9/al,-lo were found to have two phases only:
WC phase and the cobalt phase. In the alloys with 47% W content
and 10~o Mo: the third phase does not form if the carbon content
is increased to 4.3%. Phase composition analysis of the test
alloys showed that if molybdenum is at concentrations up to 10%,
a two-nhase structure can exist in the alloy with 47~; W. This
is ta.0-n as an indication of the presence of a solid solution
regior. of molybdenum and carbon in the tungsten carbide phase.
It wa6 found that the introduction of molybdenum in the alloys
of the W-C-Co system, the raising of molybdenum content up tc;
Card 3/4

s/18o/62/000/002/011/018
Structure and properties of ... E040/E135
M' and the resultant appearance of the double carbide (ql-phase),
as well as a change in the composition of the JJC and Co-phases,
are acc6mpanied by some reduction of strength at room temperature
and some increase of the strength at 800 OC. The hardness of the
W-C-Co-Mo alloys is greater than that of the W-C-Co alloys of
equal strength.
Thc-.re are 7 figures and 2 tables.
ASSOCIATION: Vsesoyuznyy nauchno-isaledovatellskiy institut
tverdykh splavov
(All-Union Scientific Research Institute for Hard
Alloys)
SUBMITTED: September 18, 1961
Card 4/4

S/180/62/000/006/002/022
Em/B451
AUTHORS: TurngjrjgX,...V,I,, Funks, V.F., Belenlkaya, L.I.,
Usolltseva, L.P. (Moscow)
TITLE: Influence of alloy additions on the surface tension of
metals of the iron group
PERIODICALt Akademiya nauk SSSR.. Izvestiya. Otdaleniye tokhnicheskUdi
nauk. Metallurgiya i toplivo, no.6, 1962, 43-48
TEXT:- The effect was investigated of 'alloy additions to nickel
and cobalt on surface tension and weldability of alumina by them,
the alloy additions studied were molybdenum, tungsten, titanium,
copper, tungsten carbide and titanium carbide. The sessile drop
method was used at a vacuum of 1o-5 mm Hg.and temperatures of about
1500*C (14000C copper). Over the alloying range studied (0-5 to
20 at.%), a relationship was found between,on the one hand,* the
contact angle, surface tension, Interfacial tension and work of
adheeion and,-on the other, the atomic diameter and thermal
stability of the oxides of the alloy additions. With the carbides
the greatest reduction in the contact angle and increase in the work
of adhesion was obtained when 5% TiC was introduced into cobalt
Card 1/2

s/18o/62/00o/oo6/002/022
Influence of alloy ... Elll/E451
(the values then being 620C and 3600 erg/cm2, respectively).
X-ray structural investigation was in;-Ae of the contact zone
between the alumina plate (made by sintering 99.419 A1203 in argon
for 5 hours at 1950*C to give a porosity of 0.2%) and the alloy
Spinel formation was found to extend to a considerable depth wish
cobalt. With nickel, a-A1203 and NiA1204 were found on the plate
at a point adjacent to the drop and cx-A1203, NiA1204, TiC, T102 and
NiAl on the plate at the contact zone; NiA1204, Ni, TiC, T102 and
NiAl were found in the molten drop at the contact zone. Thus the'
interfacial activity of titanium is evidently due to a reaction
between the liquid metal and the solid alumina. There are
5 figures and 5 tables.
SUBMITTED; March 16 1962
J
Card 2/2

2022
S/695 627008/000/013/028
1048 1248
AUTTIORS: Funke, V. F. and Trukhanova, Z.S.
TITLE: Effect of alloying on tho structure and proporties of
tungsten carbide - cobalt cerments
SOURCE: Akademi-ya nauk SSSR.-Institut metalurgii, Issledovaniya
po zharoprochnym splavam. vo8e. 1962. 88-95
TEXT: The contact angle (0 ) between WC and molten Cc or Ni (mea-
sured by the sessile drop method) is 00, i,eo, complete wetting
takes place. Addition of TIC to the VIC reduces the tendencies of
the molten metals to spread Find the contac.t angles increase, e.ge.,
to 210 for the sVstem Co - WIC containing 23,6514 TIC, Substitution
of TIC for part of the INC in 710-Co cermets reduces both the beriding
strength and the hardness of the 3ermetse Increasing the Co content
Jn bo'jh WC-Co and WC-TiC-Co cermets causes an increase in bending
strength, up to a certain maximum which Is about 200 kg,/sqomme in
the case of WC-Co contsining above 24% Cc; this strengthening act-
ion of the Co is associated with the increased plasticity of cermets
Card V3

.,/659/62/008/0X/01.3/022
1048/1248
Effect of alloying on the structure...
containing larger amounts of Co. The addition of various alloying
components affects both 'Uh6.structure and the properties of WC-Co
cermots, Thus, the Co phiise of the cermet contnins 1,28p" WC in the
absence of alloying components, 1.95, 0*4, and 2,13ef WC when 2,09%
Cr, 2.43%CrB, and .-,o respectively are added, and no VIC when
1.83,1*tli Cu or 2,61%, Al iS added. The presence of the alloying com-
ponents causes slight variations in the lattice parameters of both
the IVIC and Co phases. The distribution of these components between
the 'NC and Co phases is fairly balanced, except in the cases of
CrB (96 r""/ of which concentractes in the WC phase) and of Mo and
Cu (95.;Fand 100',.' respectively concentrate in the Co, phase). All
alloying elements mentioned, except Cu in small quantities (about
1%), reduce the banding, strength of the cermets at room temperature;
at high temporatures (600-8000), however, addition of Mo, Cr, Al,
and CrB increases the strength* The additions of Mo, Cr, or CrB
causes an increase in both the ambient-temperature and high tem-
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S1659 62/008/000/0 028
1048 1248 13/
Effect Of all0ying on the structure... X1,
Perature hardness
a decrease in sAme Of the cermets, while the addition Of Al causes
a There are 4 figures anO 3 tablese
v~
Card 3/3

39763.
S/126/62/013/006/olo/ol8
Elll/E352
AUTHORS: Kreymer, G.S., Vakhovskaya, M.R., Tum novL_~VI and
Favlova, Z.1.
TIT TE: Main mechanical properties and structure of cermets
PERIODICAL: Fizlka metallov i metallovedeniye, v. 13, no, 6,
1962, 901 - 911
TEXT.i Experiments relating chief mechanical proper+.ies to
composition, test t3mperature and carbide-grain size of three-
phase TiC-WC-Co alloys. These consist of the following phases:
TiC-WC solid solution-i structurally free WC + Co with traces of
dissolved Ti, If and C. The effect of Co was studied over
4-25 w-t.q'o range with a constant TiCAIC ratio of 15/79, giving
an average grain size of 3 Ii for the TiC-WC-phase and 1.8 IL for
the WC phase; that of TiC was over 6-25*wt.% range with 9 wt.%.
Co, giving an average grain size of 3.7 ~t and 2.5 A for the
TiC-WC and WC, respectively. The effec ot carbide-grain size
on the mechanical properties was O:udied on alloys type
T15K6'and T6K9 with fine, medium and coarse carbide grains in
various combinations. %In TiC-WC-Co the breakdown of cobalt
Card 1/2

S/126/62/013/006/olo/ol8
Main mechanical properties .... EIII/E352
becomes so significant at temperatures over 500 0C that the
increase.in~its content had little effect. The tensile strength
of thei'e-alloys became-- independent of temperature (up to 500 00
at TiC concentrations of 10 wt.0/a and'over. The fracture mechan-
isms in WC-Co alloys were different from those in TiC-WC-Co.
This difference affected both tensile and impact strengths. The
latter was independent of temperature for the alloys'&