EVALUATION OF METALLIC MATERIALS PLASTICITY BY DYNAMIC INDENTATION METHOD
https://doi.org/10.21122/1683-6065-2017-2-81-87
Abstract
The method of plasticity test of metallic materials realized by means of a dynamic dimpling of material by a spherical tip is offered. The measured value of plasticity is defined by a ratio of plastic and complete deformations in the formed indentation which considers influence of an elastic modulus of material. The dependence connecting plasticity and dynamic hardness of materials is received. Experiments on metals from 70 to 380 GPA having an elastic modulus and hardness up to 62 HRC are made.
About the Authors
V. A. RudnitskyBelarus
Minsk, 16, Akademicheskaya str.
A. P. Kren
Belarus
Minsk, 16, Akademicheskaya str.
G. A. Lantsman
Belarus
Minsk, 16, Akademicheskaya str.
References
1. GOST 1497-84. Metally. Metody ispytanij na rastjazhenie [State Standart 1497–84. Metals. Methods of tension test]. Moscow, Izd-vo standartov Publ., 1986. 35 p.
2. Ahmetov Т. А. [and etc.] Primenenie ustrojstva dlja povyshenija plasticheskih svojstv holodnodeformirovannoj armatury [Use of the device to increase the plastic properties of cold-shaped fittings]. Lit’e i metallurgija = Foundry production and metallurgy, 2016, no. 2, pp. 64–68.
3. Milman Yu. V., Galanov B. A., Chugunova S. I. Harakteristika plastichnosti, opredeljaemaja metodom indentirovanija [Plasticity characteristic obtained by indentation]. Voprosy atomnoj nauki i tehniki. Serija: Fizika radiacionnyh povrezhdenij i radiacionnoe materialovedenie = Questions of atomic sciece and technique. Series Physics of radiation damages and radiation materials science, 2011, no. 4, pp. 182–187.
4. Drozd М. S. Opredelenie mehanicheskih svojstv metalla bez razrushenij [Non-destructive determination of the mechanical properties of metal]. Moscow, Metallurgija Publ., 1965. 171 p.
5. Geller А. L. O vozmozhnosti ocenki kachestva metallurgicheskoj produkcii s promoshh’ju chisel tverdosti [Estimation of the quality of metallurgical production using hardness]. Zavodskaja laboratorija = Factory laboratory, 1970, no. 12, vol. 36, pp. 1514.
6. Milman Yu. V., Galanov B. A., Chugunova S. I. Plasticity characteristic obtained trough hardness measurement (overview N 107). Acta Met. and Mater., 1993, no. 9, vol. 41, pp. 2523–2532.
7. Tabor D. The Hardness of Metals. London: Oxford University Press, 1951. 173 p.
8. Oliver W. C., Pharr G. M. Measurement of hardness and elastic modulus by instrumented indentation: Advances in understanding and refinements to methodology. J. Mater. Res., 2004, no.1, vol.19, pp. 4–20.
9. ASTM E140-12be1. Standard Hardness Conversion Tables for Metals Relationship Among Brinell Hardness, Vickers Hardness, Rockwell Hardness, Superficial Hardness, Knoop Hardness, Scleroscope Hardness, and Leeb Hardness. ASTM International, West Conshohocken, PA, 2012.
10. GOST 26492-85. Prutki katanye iz titana i titanovyh splavov [State Standart 26492–85. Titanium and titanium alloys rolled bars. Specification]. Moscow, Izd-vo standartov Publ., 1985. 35 p.
Review
For citations:
Rudnitsky V.A., Kren A.P., Lantsman G.A. EVALUATION OF METALLIC MATERIALS PLASTICITY BY DYNAMIC INDENTATION METHOD. Litiyo i Metallurgiya (FOUNDRY PRODUCTION AND METALLURGY). 2017;(2):81-87. (In Russ.) https://doi.org/10.21122/1683-6065-2017-2-81-87