Abstract
This paper presents an algorithm for the calculation of a conventional elastic limit for WC-Co alloy in tension considering residual thermal stresses in its phases. The algorithm is based on equations of thermoelasticity for two-phase composite materials. Comparison of theoretical and experimental results revealed their fair agreement. Residual thermal stresses were found to have an appreciable effect on the elastic limit of a hard alloy in tension.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
V. P. Bondarenko and N. V. Litoshenko, “Determination of residual thermal stresses average over the bulk in hard alloy phases,”Sverkhtv. Mater., No. 3, 39–43 (1998).
A. Otsuka, K. Togo, and T. Tagawa, “Analysis of residual stresses after sintering, and microstresses and microstrains in a WC-Co hard alloy under uniaxial tensile load,”Trans. Jap. Soc. Mech. Eng.,53, No. 495, 1969–1976 (1987).
L. P. Khoroshun “Statistical Mechanics and Efficient Properties of Materials,” in:Mechanics of Composites (Ed. A. N. Guz) [in Russian], Vol. 3, Naukova Dumka, Kiev (1993).
G. V. Samsonov, V. K. Vitryanyuk, and F. I ChaplyginTungsten Carbides [in Russian], Naukova Dumka Kiev (1974).
V. I. Tumanov,The Properties of Alloys of the System Tungsten Carbide-Cobalt [in Russian], Metallurgiya, Moscow (1971).
M. H. Poech, H. F. Fischmeister, and R. Spiegler, “Assessment of the in situ flow properties of the cobalt phase in WC-Co hard metals,”J. Hard Mater.,2, No. 3-4, 197–205 (1991).
B. Roebuck and E. G. Bennett, “Phase size distribution in WC-Co hardmetal,”Metallography,19, No. 1, 27–47 (1986).
Z. Hashin and S. Shtrikman, “A variational approach to the theory of the elastic behavior of multiphase materials,”J. Mech. Phys. Solids.,11, 127–140 (1963).
H. Doi, Y. Fujiwara, K. Miyake, et al., “A systematic investigation of elastic moduli of WC-Co alloys,”Metall. Trans.,1, No. 5, 1417–1425 (1970).
H. Bock, H. Hoffmann, and H. Blumenauer, “Eigenspannungen in Werkstoffen mit heterogenen Gefugeaufbau-hergestellt am Beispiel der Wolframkarbid-Kobalt-Legierungen,”Wiss. Z. Techn. Hochsch. Magdeburg,19, No. 4, 289–296 (1975).
H. E. Exner, “Physical and chemical nature of cemented carbides,”Int. Mater. Rev.,24, No. 2, 149–173 (1979).
G. S. Kreimer,Strength of Hard Alloys [in Russian], Metallurgiya, Moscow (1971).
J. Gurland and N. M. Parih, “Microstructural aspects of fracture of two-phase alloys,” in:Fracture and Advanced Treatise (Ed. H. Liebowitz), Vol. 7, Academic Press, New York, London (1972).
H. Bock, H. Hoffmann, and H. Blumenauer, “Mechanische Eigenschaften von Wolframkarbid-Kobalt-Legierungen,”Technik,31, No. 1, 47–51 (1976).
B. Roebuck and E. A. Almond, “Deformation and fracture processes and the physical metallurgy of WC-Co hardmetals,”Int. Mater. Rev.,33, No. 2, 90–110 (1988).
Additional information
Institute of Superhard Materials, National Academy of Sciences of Ukraine, Kiev, Ukraine. Translated from Problemy Prochnosti, No. 6, pp. 116–122, November–December, 1999.
Rights and permissions
About this article
Cite this article
Litoshenko, N.V. Assessment of conventional elastic limit for a hard WC-Co alloy in tension. Strength Mater 31, 611–615 (1999). https://doi.org/10.1007/BF02510897
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF02510897