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SCIENTIFIC ABSTRACT DROZD, M.S. - DROZD, V.I.

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CIA-RDP86-00513R000411220013-7
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December 31, 1967
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SCIENTIFIC ABSTRACT
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SOV/124-57-3-3486 On the Most Advantageous Angle of Pieliminary Elastic-plastic Twisting (cont.) section. The author derives a formula for the minimum relative angle of pre- liminary twisting of a hexagonal shaft which would ensure that the working angle of twist remains within the elastic range, consistent with the yield strength of the material. B. F. Romanchikov Card 2/2 gaw W- rrr!-!M- ~1~777-7-4--- Well/ Ragneering &wrace qaanty cam 1/1 Pub. 128 - 17/31 Authore i Drozd, H. am -is I Depth of cold- hardened.layer during shot-h&rdening treatze.nt of parts PeriOdicalI Vast. mash. 35/5,,48-01, K&Y 1955 Abstract. It is shown that the Problem- of dAtOrmil2ing ths tfilckness of a cold harden- ed layer, daring-ths. ShOt-hardening.-process may be reduced to the calcula- tion of the maid n1m. depth. of penetration of plastic deformation wider a single improesion.which is being formed during static pressing in of the pallet. in approximts analytical solution to this problem in presented with respect to a cold hardened layer on a flat plate. Four USM references (19484952). Gralphs. Institution s Mmitted : AUTHOR: DrM".3 32-1-31/,55 TITLE: Sphqre Test not Depef&nt'on Test Conditims (Sharikovaya proba, ne zavisyashchaya ot usloviy ispytaniya). PERIODICAL: Zavodskaya Laboratoriya, 1958, Vol. 24, Nr I , pp. 74-82 (USSR) ABSTRACT: The author here begins with the statement that, according to the theories developed by several scientists, the conMtion known as "hardness" cannot be looked upon as a specific property of a ma- terial, but as a factor of its mechanical properties. On the other hand, the results obtained by hardness tests according to Brinell carried out on the same material but under different pressure stresses are unreliable,,because here the conception of hardness depends on test conditions. In the chapter: The diagram of the press#g in of a small-spherics. R22L into a surface of an elastioally-plastio half-space the theor is developed that the coeffioient of hardness, which is deter- mined by the pressing into the medium, must be looked upon not as a consequence of the elastic resistance of the material, but as a result of its plastic deformation, and that therefore it is also Card 1/3 practically independent of the quality of the material (brand of Spheis 'fast not Dependent on Test CondLitions 32-1-31/55 steel). In the chapter: The physical similarity of casts it is said that N.N. Davidenkov "proved with absolute certainty" that "ab- solute hardness" (according to Hertz) "does not exist at all" and that the hardness index eilone characterizes the properties of the material. The author arrives at the conclusion that between the "new hardness coefficient" set up by him and the effective stretch- ing-strain limit (elasticity) of the material there exists a physically well-founded dependence. In the chaptex- The method of determining the "new hardness coefficient" an example how this value is computed according to pressure stress is given. It is said in this connection that in view of the frequent need of such data an apparatus that has been sufficiently well tested must be used. The well-known Brinell press might be adapted for this purpose, if the respective tables or graphs are available. In conclusion, a number of theories dealing with this subject is mentioned, and it is said that the "new hardness coefficient" should be preferred to the "Brinell Tests", that test conditions need not be taken into Card 2/3 account in this case, and that it is possible, instead of with Sphere-Test not Depezdent on 32-1-31/55 Test Conditions semi-empirical formulae, to operate with physically well-founded facts. There are 6 figures, 6 tables, and 6 Slavic references. ASSOCIATION: Stalingrad Mechanical Institute (Stalingmaskiy mekhanicheskiy institut). AVAILABLE: Library of Congress Card 3/3 1. Materials-Hardness-Test methods 2. Materials-Hardnese-Theor7 DROZD, X.3.,kmnd.tekhn.n&uk, dots. Analytic stud7 of residual stresses caused by surface hardening. Izvevysauchebazav.; mushinostr. no.5:42-52 '58. (HIRL 12:5) 1 Stalingradakiy teekhanicheakiy institute i3hot peening) (Rolling (Metalwork)) (strains and stresses) AUTHOR: Drozd, M. S. SOV/32-24-8-3o/43 TITLE: The New~ard~ness Number and the Basic Mechanical Properties of Steel (Novoye chislo tverdosti I osnovnyye mekhanicheskiye 8voystva etali) PERIODICAL: Zavodskaya Laboratoriya, Vol. 24, Nr 8, pp. 1oo2 - 1007 (USSR) ABSTRA.CT- In this paper the possibilities of applying the new sphere test was investigated. This test was described in an earlier paper. The investigations were carried out on a large number of steel samples in various conditions and with hardness coefficient H B Of 95 to 498 kg/mm2. A table of the investigated materials is given. The stretching-strain linit of these materials was calculated according to the epations da W 0085 H kg/Mm2 and 6. - 00 H + 51 kg/mm , and the values obtained are given in tables. Determinations of the true tensile~.ztrength S K were carried out based on its observed linear depepdence on the hardness number H: 3K- 0,2 H + 65 kg/MM4. The results are tabulated. The Card 1/2 conditional (a B) and true (SB ) breaking points were likewise The New Hardness Number and the Basic Mechanical SOV/32-24-8-3o/43 Properties of Steel determined. A.I.Kamyshnikov and G.Yu. Stolyarov participated in determining the transverse contraction (Y . A table of these values is also given. The equations derived in the paper are in complete agreement with the co=unications of Ya.B.Fridman (Ref 8). There are 5 figures, 4 tables, and 8 references -, which are Soviet. kSSOCIATION: Stalingradskiy mekhanicheskiy institut (Stalingrad Mechanical Institute) Card 2/2 28 (5) AUTHOR: Drozd, M. S. BOV/32-25-5-28/56 TITLE: Method of Determining a New Hardness Number (Metodika opredeleniya novogo chisla tverdoati) PERIODICAL: Zavodskaya Laboratoriyat 1952_p,~ - 601 ,1_25, Nr 5, pp 597 (USSR) ABSTRACT: As was already showng it is necessary for the calculation of the hardness 9 of steel to measure the diameter of an indenta- tionj the other investigations concern the analytical compute- tidn according to an equation (1). The values of the new hard- ness number H of steel as a function of the diameter (DI of the indentation (produced under the load F at the ratio P/b~' - 30) are given as example (Table). As the tables of hardness accord- ing to Brinell H., as well as the value of H are given as func- tions of (D), function H - f (H B) may be obtained from these tables which may, however, also be expressed by an equation (5). As soon as the values H and H B are known for a certain load, it is possible to plot curves for 8 B a F (P) (figure 2 Card 1/2 for some types of'steel). On the basis of some considerations Method of Determining a Now Hardness Number SOY/32-25-5-28/56 it is stated that in softer types of steel and tests with greater loads the values K and H B are rather equal. Until re- cently it was assumed that there is only an empirical function (Ref 5) between the hardness numbers according to Brinell and Rockwell. It is confirmed that by means of R it is possible to describe this function for H R also analytically. By means of an equation for H (11) a diagram of the function HR B 0 F1 (HB) (Fig 3) is given. Some explanations are given indicating that the determination of H by means of the device lesigned by Rook- well is of special importance an it is possible to carry out comparative teats of the hardness of various metals irrespect- ive of their properties of elasticity. There are 3 figures, I tablep and 9 Soviet references. ASSOCIATION: Stalingradskiy mekhanicheskiy institut (Stalingrad Institute of Mechanics) Card 2/2 MWZD, M. S. ------- New hardness number and the Neyer costants for steel. Zav.lab. 26 no.1:90-93 160~ (KIRA 13:5) 1. Stali W adskiy mekhanicheskiy inatitut. (Steel--Testing) (Hardness) - MDZD, M.S. Now hardness number. Zav.lab. 26 no.3:3~6-388 160. (MINA 13;6) 1. Mllnpadskiy mokhanichookiy institut, Olirdness) 5/032j6O/O26/010/017/035 9160 B016/BO54 AUTHOR: Drozdj M. B. TITLE: Hardness of Cold-hardened Carbon Steel as a Consolidation Criterion Under Repeated Stress PERIODICAL: Zavodskaya laboratoriya, 1960, Vol. 26, No. 10,PP-1139-1143 TEXT: The author studies the theoretical fundamentals of problems connect- ed with a change in hardness of a material during plastic deformation. First, he analyzes torsion, as a preceding deformation, for which he finds' equation (8) H - Or"3/0-185). - 9-35-r- (H - hardness, -r - tangential stress). He chocked experimentally equation (8) on specimens of steel, grades 15 and 35, as well as Armco iron. Next, he describes stretching as a preceding deformation, and derives functions (11) - (14). Figs. 3 and 4 illVatrate the text. Finally, the author discusses compression as a pre- ceding deformation (Fig- 5), and derives equation (15). On the basis of his analysis and experiments, he arrives at the following conclusions: 1) The hardness of steel consolidated by stretching, compression, or torsion, can be approximately calculated as a function of the preceding Card 1/2 Hardness of Cold-hardened Carbon Steel 3/032/60/026/010/017/035 as a Consolidation Criterion Under Repeated BO16/BO54 Stress deformation. 2) The bardness H of cold-hardened steel characterizes the value of the yield strength under repeated stress, and allows an investi- gation of this characteristic as a function of the hardening degree. 3) The consolidation of the material during torsion is fully maintained in the subsequent compression during the hardness test, 4) The consolida- tion of the material during stretching or compression does not fully ap- pear as a consolidation in a following compression. The yield strength is the closer to the maximum stress attained during the original deforma- tion, the less the sample has been deformed- 5) A comparison of hardness before and after cold hardening can serve as a criterion for estimating the efficiency of different types of preceding deformation used for the purpose of consolidation. There are 5 figures and 9 Soviet references. ASSOCIATION: Stalingradskiy mekhanicheskiy institut (Stalingrad Institute of Mechanics) Card 2/2 Now dynamic hardness number. Zmv.1&b. no.4:472-477 160. (XERL 13: 6) 1.0 atalinsmdskiy moIcharAchookly institut, (Metals-Testing) (Narduess) 10 S1 148/60/000/009/02V025 A16 I/AO30 AUTHORi Drozd, M.S. TITLE: The hardness of cast iron PERIODICAL: Izveatiya vysshikh uohobnykh zavedeniy. Chernaya metallurgiya, no. 9t 19609 169-172 TEXTt A new hardness number had been suggested for steel previously (Ref.1) (M.S.Drozd, "Zavodskaya laboratoriyallp XXIV, 1958, 1.). The author points out that the standard ball test used for steel is not accurate due to the effect of elae-;ic metal deformation, and the now hardness number system eliminates +',,e inaccuracy. In the new method the plastic deforma- tion of metal under test is separated from the elastic deformation of the metal and of the testing Brinell ball. Experiments were carried out with cast iron and it was stated that the elimination of the elastic deformation share from the hardness indication is equally applicable for cast iron. The chemical compositions of three cast iron grades experimented(with, M5-32 (SChl5-32),C Y21-4o (SCb2l-40) andXH8 (KhNV), is given %) Card 1/6 3/148/60/000/009/024/025 The hardness of cast iron A161/AO30 SCh15-32 3-3 - 2.25 5.7 0.7 0-15 - - - - 0.09 SCh21_40 3-~ - 1.92 5.3 0-9 0.15 0.30 0.4 - - 0.10 IMNV 3-1 0.85 1.61 - 0-8 0.54 0-50 1.4 0-5 - 0-05 Iron was cast into 30 MM diameter bars, and specimens cut from the bare in the form of prisms of square cross section with 20 mm side and 200 mm, length the faces'were carefully polished. Balls of 10 and 5 mm diameter were pres- sed into the surface, and the itaprint diameters d were measured with a tool microscope, and the depths of restored imprint portions h (Fig.1) with a dial depth meter. The accuracy of the imprint diameters measured and the restored depth of imprints was 0.01 mm. The depth of the non restored im- print t was calculated with the formula ,2 t - R ~R ~- M where R and a are the radius of the ball and of the imprint. The elastic restoration of the imprint was calculated as the difference Card 2/6 s/148J60/000/009/024/025 The hardness of cast iron A161/AO30 W - t - h (2) A linear dependence was observed between the force of applied pressure and the depth of the restored imprint (Fig.2). The formula suggested previous- ly for steel remains valid for tests on cast irons H M P - PI kg/mm2 (3) 9rD(h-hl) Conclusions: 1) A linear dependence between the force of the ball pressure and the depth of the restored imprint exists for cast iron (as well as for steel). Thus the L.o hardness number may be applied for cast iron. The new number does not depend on the test conditions ki.e. the applied pressure and the diameter of ball). 2) The Brinell hardness in studied cast iron grades depends to a high degree on2the load on the ball and changes nearly 1.5 times (in KhNV iron)t with P/D increasing from 2.5 to 30. The new hardness number determined with the formula (3) is insensitive to the test conditions. 3) Replacement of the Brinell by the now hardness number gives Card 316 The hardness of cast iron S/1 48/60/000/009/02VO25 A16l/AO30 a stable constant of material and permits the evaluation of the mechanical properties of cast iron and steel by a single criterion, i.e. the resistan- ce of material to plastio deformation from the pressure of the spherical punch applieC There are 5 figures and 5 references: 4 Soviet-bloc and 1 non-Soviet-bloo. ASSOCIATIONs Stalingradskiy mekhanicheskiy institut (Stalingrad Mechanical Institute) SUBMITTEDt 28 January 1960 Card 4/6 The hardness of cast iron s/148/60/000/009/024/025 A16l/AO30 Fig. I t - Depth of non restored imprint (total displacement of the imprint conter); h - Depth of restored imprint (plastic displacement of the imprint center): v elastic restora- tion of imprint Card 5/6 The hardness of cast iron i v /I 11 /1 / I", I 1V V 4 V LIOOO S/148/60/000/009/024/025 A161/AO30 Fig. 2 - Linear dependence between the applied force and the depth of restored imprinti I - KhNV ironj D m 10 mml 2 - SCh 21-40 iron, D a 10 mm; 3 - KhNV iron, D - 5 4 - SCh 21-40 iron, D - 5 mm 32288 R %;LDO 1.327, ILI 15 3/032/60/026/010/017 035 B132/B208 AUTHORt Drozd, M. S. TITLE: Hardness of cold-hardened carbon steel as a consolidation criterion on repeated load PERIODICALt Zavodskaya laboratoriya, v. 26, no. 10, 1960, 1139-1143 TEXT: The author studies the theoretical bases of the problems of the change in hardness of the material during plastic deformation. According to the theory of Guber-Mizes, the formation of plastic impressions result- ing from the indentation of small balls may be calculated from 7-. -C2 a r08 denotes the octahedral tangential stress, a the fluctuation 8 3 S' S limit of the material. Previous studies (M. S. Drozd, ZavodBkaya laborato- riya, XXIV, 8 (1958)) already referred to the interdep'endence between hard.. ness and elastic limit in steel which was not cold-hardened, and extended 2 it to cold-hardened steel. C. 0-185H, if H 600 kg/mM and a = 0-1,H + 51, if H :;% 600 kg/mM . Hence T -0-185H 0.08711. if S 8 Card 1 // V 32288 R S/032/60/026/010/017/055 Hardness of cold-hardened carbon... B132/B206 2, 2 -(O.IH + 51) - 0-047H + 244 k61 2 H 4,-600 kg/mm and 'r if 11 600 mm By studying torsion as a temporary deformation the following equation obtained: H - TL - 9-35T (8), (H - hardness.. T - tangential stress). 0.185 for'r!~ 64.2 kglMM2, and H - 17-3T - 510 f or T,>/ 64. 2 k g/mm2 . The author checked the equation for steel samples of the types 15 and 35., and for Armco iron (Fig. '). -cmax was calculated from the formula by Nadai (Ref. 3- A. Nadai, Plastichnost' I razrusheniye te), IL. (1954). It follows T 1 (2M + k 8 denotes the specific torsion angle. The max 2nr3 k 7_8 relationship between ~k and r has been previously studied by 1. V. Kudryav, tsev(Ref. 4t Metallovedeniye i obrabotka metallov, 3 (1958)) for the steel samples of the types 3 and 45. The author then describes elongation as a temporary deformation, and obtains the following functionst IcP -IT a S where u is the coeff Jcient of tht- volume -,nder stre*s 8 3 Card 2~111_ 11'X 32288 It C -har 1 tr, c -~, r"b -jn . . . i-nd S the real s trIes s in the campl v.- at, the raomcntu af ta-- 0-185'1 - 0-08711 ( 12 ) f 0 1 lowed f rom th ii c z~ applied to all three steel ty.-pes svz~licd. 'F4 N. Davidenkov , N. I. Spiridonova ( Ref. 6: Zavod3kaya 1945)) and P. 0. Pashkov (Ref. 7: Zhurnal te'.:hr.4-zhcz--)y fizi',141 &-X, 2 (1949)) already mentioned t',cse factors. It follo-z f--o,-,i 12 3 H H . -~P -H '--? t'-t H = 1 13) , where T and ar a , fn a '8 1, 8 a/'81 0.185(2 --- j a~k SQ4). ',,hen studying the compre3sion, the author 5.185 = ) r , 3 - obtained -',~q. 15: H = 0-1a5 5.4 S (Fig. 5). The followine conclusions qere d.-La-,,,n 'ron tKese studies: 1) The hardness of the steel conoolidated ~y elongation, compression or torsion may be approximatoly calculated as a ation. 2) In the case of I .:~ -*- arci ened fiAliction of the preceding deform s-qeel the hardness H characterizes the elastic limit on repea~~ed load, and -Permits the study of this characteristic as a function of !he de3eee of ,--rd 3 ~32288 R 610 z;)/60A2 6/0 101, 17/03 5 0 c;,' B1 32/B208 hardness. The consolidation of the material ~Iuo to completely manifezt in the subsequent com2resSion 4urin- the 4) The consolidation of the material due to elonzation or cc.-. jr u -i ; i on be - U - como3 manifent only partially. The elastic ,-imit is closer t3 th, :a.,_-_-':.uzt ~o-,ja_-Jscn of the hardness before and ~ifzer .Loa n c i t r i o n ~f o r e a t i m a t i n 3- e, c. c i e n f d, i f f e n I t e:.-, o r a --- y -) a s i c d e fo r m a t i o n . There are 5 figuref, and' 7 6'oviet-bloc and 2 non-Soviet-bloo. 11~)SOCLLTION4: :;tLlingradn?iy mekhanic'heskiy in-- ti t-, in 7. d of :.:ech-anizs) Le- end to 1 1 DiafrEm-,-. arld 0 r, th e -, t 0 0 1 types otudiod. a~ 1 a i v C, diz ~~iace:ncnt; b) t,~_n~,ential stress in 2 2 kC,/1;1:71 C) hardness 111 in k., r"M ~,rd 4 :r Q_ ill '17 T__ 20 41 0.2 44 43 43 4J ~4 /5 C %--- DROZD,-M.S. Conditions for putting together the results of Brinell test measurements. Zav.lab. 27 no.8:1022-1027 161. (KLRA 14:7) 1. Stalingradakiy mekhanicbeskiy inatitut. (Brinell test) S/032/61/02"7/009/009/019 BI I 7/B101 AUTHOR: Drozd, M. S. TITLE: The specific deformation work as a characteristic of steel hardness PERIODICAL: ZAvodakaya laboratoriya, v. 27, no. 9, 1961, 1142-1146 TEXT: The author comments on a paper by S. S. Stepanov, "Hardness deter- mination by indenting a ball" (Ref. 1: S. S. Stepanov. Zavodskaya laboratoriya, v. 26, 10 (1960)). He compares his own equations (Ref. 2: Zavodskaya laboratoriya, v. 24, 1 (1958)) for determining the new hardness number H: H - (P - P S)/nDh (1), or H - (P - Pl)/nD(h - hl) (2), with the equation proposed by Stepanov: AV - (A/V) - (3/2n)- [P/h(1-5D - h)3 (3~ P and P1 are the indentation forces; h and h 1 the corresponding depths of the recovered indentations; P. a load under which a plastic deformation develops in the indentation center; D the ball diameter. Equations (1) and (2) are based on a linear dependence between P and h. H is, therefore, Card 1/4 S/03 61 027/009/009/019 The specific deformation work B", 17YBV independent of the indentation force and the ball diameter. Eq. (3) is also based on calculating the recovered depth of indentation. Stepanov assumes that A Ph/2 is the work of development of the indentation, and V - (O)h2(j.5; _h) the volume of the indentation. He points out that this formula produces a hardness number with an unambiguous physical sense, and which, like H, is independent of P and D. This equation has the advantage that the depth of only one indentation must be measured, and not that of two, as is the case with formula (2). Test results found for steel of the V8 (U8) brand with a hardness of HB - 245 kg/mm2 are given as a proof. The principle of S. S. Stepanov's proposal was dealt with in detail by N. N. Davidenkov (Ref. 4: Nekotoryye problemy mekhaniki materialov, (Some Problems of Material Mechanics), Lenizdat (1943)). A quantitative study of StepanovIe proposal produced the following result; The hardness characteristic proposed by S. S. Stepanov is not a specific work of development of a plastic indentation, and depends on the load of the ball. For P.,~>P,, the numerical values of AVin a certain load range practically agrees with the approximate H values found for PS . 0 (Table). A further deepening of indentation is accompanied by a slow but steady increase of A-V- Card 2/4 S/032./61/027/009/009/019 The specific deformation work B1170101 The new hardness number can be determined with an accuracy sufficient for the practice according to the recovered depth, or the nonrecovered diameter, of an indentation. Thus, the determination of the specific work AV is not simpler than the determination of the hardness H, according to the equation H - P/nDh (9). There are 4 figures, 1 table, and 6 Soviet references. ASSOCIATION: Stalingradskiy mekhanicheskiy institut (Stalingrad Mechanical Engineering Institute) Table. Values of AV and H for different indentation forces of the balll D - 10 mm. Legend-. (1) for U8 steell +) from Eq. (9)1 ++) from Eq. (1). Card 3/4 -iv,226 S/148/62/000/001/011/015 E073/E335 AUTHOR: TITLE: Theoretical relationship between the hardness of stool and its resistance to plastic deformation I P-l"RIODICAL: Izvestiya vysshikh uchebnykh zavedeniy, Chernaya metallurgiya, no. 1, 1962, 147 - 159 TEXT: In earlier work the author of this paper proposed a new hardness number which enabled interrelating directly the hardness with the strength. He has shown that in the case of an indentation produced by a ball, the intensity of the plastic deformatsion at various points can be expressed by the exponential relation of the type: kz CP1 = -khe (1) where h - depth of the indentation, z - coordinate taken from the centre along the line of indentation, k - coefficient depending on h but remaining constant Card 1/# for various points along the z-axis. Theoretical relationship s/148/62/000/001/011/015 E073/E335 Thus, k represent the intonsity of plastic deformation of the centre of tho indentation for the case that it is displaced by 1 mm, since at this point the following expression is valid: = - kh (2) p1 The depth h can either be measured or calculated from the new hardness number H In the final form Eq. (2) can be expressed thus: P PS EP1 -k D F1 ,.-;here P - force applied to produce the indentation, (15) PS - force required for producing the plastic deformation at the centre of the indentation, D - wall diameter. Card -2/-5 5/148/62/000/001/011/015 Theoretical relationship E073/E335' For a giv6n D PS is unequivocally determined by the now hardness number H . The relation between P., kS and if, lcg/mm for carbon and alloy stools (D =.10 mm) is plotted in Fig. and for Ii in excess of 300 kg/mm this relation is a straight line which can be expressed by Eq. (16). Extensive experiments were made (on 19 different steels) in order to compare values of the intensity of the elastic and plastic deformation and stress at the centre of an indentation calculated from neasured values of the new hardness number with actual strength values determined from tensile tests. The physical relation between hardness and strength, giving quantitative relations, is elucidated. A method of hardness measurement for the purpose of investigating the resistance-to-deformation of matlerial during tension or compression for any degree of deformation has been worked out. Fig. 9 shows the dependence of the ultimate strength (kg/mm2 ) of steel on the now hardness number (kg/mm2 ), whereby the line represents values calculated Card 3/5 s/148/62/000/001/011/0,15 Theoretical relationship .... E073/r-.335 according to a formula derived by the author, the crosses representing exp6rimental results of the author, the circles - results obtained under shop conditions, triangles - data published in the literature. The here described method is thus suitable for indirect determination of the ultimate strength under shop and laboratory conditions. The author has shown that the coefficient of proportionality interrelating ultimate strength with Brinell hardness depends on the Poisson coefficient and the magnitude of uniform deformation of the material in tension. The author also established the reason why this coefficient did not remain constant for various steels. There are 9 figures and 4 tables. ASSOCIATION: Volgogradskiy mekhanicheskiy institut (Volgograd Mechanical Institute) SUBMITTED: January 24, 1961 Card 4/5 DROZD, A. H. "A Winter-Resistant Variety of Peas for the Foothi.11 Zone of the Krasnodarskiy Kray." Gand Agr Scis All-Union Inst of Plant Growing, Leningrad, 1953. (RZhBiol, No 7. Dee 54) Stu-vey of Scientific and Technical Dis3ertations Defended at U3SH higher Educational Institutions (12) SO: Sum. No. 556, 24 Jun 55 DRMD, A.K.. kandidat sslIskokhozyay9treAnykb nauk. ftm- I Developing varieties of winter peas for the Territory. Trudy VIIIKW no.5:191-209 155.. _ (Krasnodar Uir-i't-O'ry-Peas-Varisties) foothills of Xraenodar (Km 9:11) DROZD,.#.H.. kandidat sells.kokhosyaystvannykh nauk. ---or"Oort" Ion of types in Lima bean hybrids under conditions prevailing in Kr"no&w Territory. . Trudy VNIIXOP no.5:210-217 '55. (MM 9:111 (Krasnodar Territory--Lim bean breading) IRITIN. D.G.;4ROb, AA; CWM, I.M. Now disinfootants for pulse moods. Ions.i ov.prom. 12 no.6:32-35 Je 157. (MM 10:7) 1. Vessorusan mauchno-looledoratel skly Institut konsermoy i ovoshohesushilluoy promrshlo=ost (;or Kiivimu) 2. Opytno-selektolonnays, stantel" Vs~soyu%nqAt;j. Uohno- iseledovatelinkogo institute, konservnqy i ovosh aushilluoy prov7shle=oatt v stanitse "skoy (for Droid,teshko) (Se*ds-Disinfeotion) .--DRWD-.A--.1r. Vnrieties of green Peas end cultivation methods permitting mechanical hnrventing. Kona. L ov. prom. 13 no.4:31-17 Ap 158. (MMA 11:4) 1. Opytno-selektsionnava stantstya v atanitse Krymakoy, (Peas) ---- OKSENTIYAN, U.G.; VORONKOVA, L.V.;-DROZDI A.M. Using antibiotics in controlling bacteriosis in phaseolus. Trudy Vses. inst. sel'khoz. mikrobiol. 17:68-82 16o. (MM 15:3) (Beans--Diseases and pests) (Antibiotics) (Bacteria, Phytopathogenic) -.R4-Q DROZDOV, A.V. Method of determining the hardness of a metal when the test specimen has a rough surface. Zavlabe 29 no.12s1485-1488 '63. (MMA 17:1) 1. Volgogradskiy makhanichoskiy institute DROZDj M.S.; STOLYAROVI G. Tu. Certain regularities in the dynamio hardness of steel. Izv. vyme uchebo zav*; chern* met. 7 no.7tl76-3.82 164 (MIR& l7t8) 1. Volgogradakiy politekhnichaskiy institut. D Ylothod of Investigating the Impact velocity dependence of the hRrdness of steel by means of the ball indentation test. Zav.lab. 30 no-41480-484 164. (MIRA 17:4) 1. VolgopTadakiy mokhanicheskiy institut. DROZD, [Nondestructive testing of the -,ech:-.rLicalL prorcrties :)f me-Lal.s] Opredelenia meklian--chaskikh ;:volstv int:talla bez rurushenlia. Moskva I ,, Metallurgiia, '969. 170 p. L35892-66 EWP(e)/E~T(m _)ZLWP Y!)/T /EWP(t)/ETI -IJP(C)- _,JD/WH NR: AP6010868 SOURCE CODE: UR/Oiis/66/000/002/0030/0032 AUTHOR: Kozyreva, Ye. N.; Droad, M. S. ORG: none TITLE: Using high-curvature diamond ball indentor for hardness eating of high- 1 strength ste Is SOURCE: Izmeritaltnaya tekhnika, no. 2, 1966, 30-32 TOPIC TAGS: hardness, high strength steel, diamond ABSTRACT: High-curvature diamond.ball indentors are recommended for use in hardness testing of high-stren8th steel&. The hardness can be calculated from this formula: H.- P - pe AP where P. and P are previous and ultimate sD(h-ho), %D(M) loads and h and h are imprint depth@, respectivelyi D is the ball diameter, i.e. Card 1/2 UDC: ~ 620.178. ISZ. 2 L 35892-66 ACC NR: AP6010868 the double radius of curvature of a Rockwell-type diamond cone. The maximum permissible indentation depth is equal to the spherical segment altitude, R ( 1-3in -t), where 0 is the cone angle. The above* theoretical considerations 2 iwere verified by actual testing of 30 x 30 x 12-mm plates made from steels of '30-69 14RC hardness on a "super -RockweU " machine. Experimental data is :tabulated. It is found that by reducing the diamond test cone angle, the high- !,strength steels can be tested for hardness by the above method; thus, the method is applicable to all steels, from the softest to the hardest. Orig. art. has: !I figures 7 formulas, and 3 tables. SUB CODE: 11, 13 suBm DATict'none ORIG REIN 006 Card,.2/2- AR6033112 SOURCE CODE: - UR/0137/66/000/007/IO40/IO40 AUTHOR: Drozd, M. S. TITLE: Resistance of steel to plastic deformation on impact SOURCE: 1~ef. zh. Metallurgiya, Abs. 71259 REF SOURCE: Sb. Materialy Nauchn. konferentaii. Sovarnkhoz Nizhne-Volzhsk. ekon. r-na. Volgogradsk. politekhn. in-t. T. 1. Volgograd, 1965, 204-209 TOPIC TAGS: steel, plastic deformation, impact stress, tensile test, deformation resistance ABSTRACT: The possibility of using the impact ball test to examine the basic mechanical properties of metal under impact was studied. The effect of hardness on the nature of velocity relationships of steel resistance to plastic deformation was determined from the stress-strain curves. Impact force measurement and, at the same time, oscillographic readings of period of load Increase time during impact made it possible to calculate the deformation rate. It was shown that in the transition from static loading to impact loading, the . ajos, -ratio increases. 1/2 UDC: 539.4.019.1:669.14 AR6033112 For all impact speeds (up to 4 m/sec) Investigated, the ratio adas,- is 0. 67--0. 86, increasing slowly with increase in steel hardness. This was confirmed by the results of direct experiments on the impact elongation of samples. The character of the velocity dependence of the tensile strength, determined by the new number of dynamic hardness Hq, corresponds to the regularities observed during tensile tests. In the transition from static to impact loading, 46 increases most when 0-6-00 see-1. Further increase of the deformation rate decreases the intensity of the increase of '!6.1- L. Gordiyenko. ?'[Translation. of abstrac.t] SUB CODE.- 11, 20/ Card _2 SYRM IKOJO I.K. (go Severo-Yeniseyok); DROZD, K.7a., inzh. (go Severo-Tenisaynk) Roof bolting with looped rods as coner3te reinforcement. Gor. shur. no,7:39-40 J1 f62, NIRA 15:7) 1. Glavnn inzbener'Sovetbkogo rudnika Severo-Yeniseyakogo priiskovogo upravleniya (for Syrislko)I (Mine roof bolting) (Reinforced concrete construction) DROZD; N. I. "Areas Without runoff in the South of the Ukrainian 5SRII Izv. In-ta Gidrologii i Gidrotekhniki AN USSRj 10 (17).. 25-31, 1953 The author notes that the surface runoff from the low-lying parts (various saucer-like bottomlands), which are some distance from the slopes of ravInes or valleys) do not reach these latter rlaces and are held in the lowlands without runoff. This fact must bd taken into account in any plan for the construction of artificial ponds in the upper portions or sources of small valleys where there are no outlets for the underrround waters to the open surface. (RZhGeol., No 3, 1954) SO: 17-33-187, 6 I%r 55 I: 2. 4,, 7- r.ROZD: -N.* T."* SHV'RTS I - H 0. 1 .. ussR (6oo) HydroloW - Dnieper Valley From the history of h7drological inve stiprat tons of the Dnieper, Visn7k AN URSR 24 No. 1, 1953 9. Monthly List of Russian Accessions, Library of Congress, May .1953. Unclassified. DROZD~ N. I I "Historical Levels of Water on the Dnepr River," Izvestiya VOO, No. 6, Nov/Dec, 54. report presented at one of the 1953 meetings of the Hydrology Commission, Ukrainian Affiliate, AU Geographic Society: Sum. 573, 14 Jul 55 BR09D, I.I.; Of S. Gale ftleper River levels at Lotmano-Emenks. isy.Inst.gidral.1 gidLr AN OW 131112-121 155, (XMA 9t2; (DzMW Ilvek-Stromma measurements) Mn7n- If_T_,__,r-wVCE=O, S. 74 SHVITSIO G.I. P.; MOKLYAK. V.L. vjdpovi.~'~"' dalInlyrodukaff'- rodaktor [Catalog of rivers of the Ukraine) Katelog richok Ukrainy. KAY 1957. 191 P, (KIJU 10:71 1, Akedonlys nouk MM, Kiyov. Institut gidrologit to gidratakhniki (Ukraine--Rivers) DlIOZDj 37. 1. 1 Cand Toch Sci-(dj,.,.-J "Type ,,A,4000- Ul-,Sf-3R tivorr. and thoir lhydroClo~hic Glr.r (for 4AA~~.--LJA-, '-dm. of hydroloric ---- -- of t:,bl~t,~ (7.7in of lli[;h(,r Educr~tuioll "iz-:v of of 'i'l,ator C. "Ourcen') , 120 co,-Ior- (,"l, 22-51, 1M) Role -am'l Le Investigation data on silting of reservoirs in the Ukraine. Trudy Iab. ozeroved. 7:92-97 158. (MIRA 11:10) l.Institut gidrologil i gidrotekbniki AN USSR. (Ukrain*-Romervoirs) (Ukraine--Silt) VISHNEVSKI y Fedorov1ch[Vymhnevs1kyi, P.F.]j FDZD- Hafan-41 I ZHELEZNW, Iosif Aronovich; KRUHANOV6KATA, 1 5ovna[Kryshanivs'kq, A.B,]j XUBTSHKIN, Georgly Pimenovich[Kubyshkinj H.P.).1 LYSENKO, Klara Arkhipovna; MULTAK, Vladislav Ivanovichl CHIPPING, Galin& Aleksandroyna. (Chippinh,, H.O.); SHVETS, Grigoriy Ivanovich(Shvets, H.I.]j PECHFOVSKATA, O,M.jP*cbkovs'ka, O.M.], red.izd-Ta; RAKHLINAj, 9,P,9 tekhn, red, [Hydrologic calculations for rivers of the Ukrains)Gidrologichni. rozrakhunky dUa riabok Ukrainy; pry vidsiltnosti sposterezben'. (By]P.F.Vymhnev'kyi ta inshi. Kyiv, Vyd-vo Akad.nauk URSR, 1962. 385 P. (Ukraine.-Rivere) (MIRA 16:2) DROZDP N.Il , - - . ~ -~ Sediment runoff during the Wing thaw, Trudy GGI no,M136-244 163. (K[RA 16$9) (Sedimentation and deposition) DROZDj N.I. Formation of surface runoff in the mountainous part of the Crimea. Geofiz. i astron. no.8tl39-141 165. (MIRA l9rl) 1. Ukrainskly nauchno-issledovaoltakiy gidrometeorologi- cheskiy institut. ACC NR: AT6025569 (4, Al) SOURCE CODE: '-UV2599/6640OO/06O/0054/006l jAUTHOR:__R!2!j,..K,_1,; Goretskaya, Z. A. i iORG: None TITLE: Map of average turbidity of the river waters in the UkrSSR 1SOURCE: Kiyev. Ukrainskiy nauchno-issledovatellskiy gidrometeorologicheskiy institut. !Ttudy, no. 60, 1966. Voprosy gidrologicheskikh issledovaniy L raschetov (Problems in ihydrological research and calculations), 54-61 ITOPIC TAGS: hydrology, riv- 4-21bWity, riotre mt- hribiALky map,-h&mwwi"- ABSTRACT: The paper presents and discusses a map of river water turbidity of the Ukra~' line. The map shows average concentrations of suspended sediments of rivers with water-: Isheds over 200 km2, The map is shown in Fig. 1. The least turbidity, 0 - 20 grams/93 jis found in the northern flat forest zones of the republic, the highest (> 500 g/m ) !in the open regions of the center, at the southern slope of the Ukraininan crystalline shield. A review of the map and of the relations between relief structure, ground na- ture, erosion mechanisms and the river water turbidity is given. A map showing terrain roughness, characterized by the index of gullies length/area (km/kmz) is also presentea, Gullies in the Kanev dislocation region

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