Abstract
Stress–strain curves are recorded during a high-speed impact and slow loading for nanocrystalline and coarse-grained iron and copper. The strain-rate sensitivity is determined as a function of the grain size and the strain. It is shown that the well-known difference between the variations of the strain-rate sensitivity of the yield strength with the grain size in fcc and bcc metals can be extended to other strain dependences: the strain-rate sensitivity of flow stresses in iron decreases with increasing strain, and that in copper increases. This difference also manifests itself in different slopes of the dependence of the strain-rate sensitivity on the grain size when the strain changes.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
R. A. Andrievskii and A. M. Glezer, Phys. Usp. 52, 315 (2009).
M. A. Meyers, A. Mishra, and D. J. Benson, Progr. Mater. Sci. 51, 427 (2006).
R. Z. Valiev and I. V. Aleksandrov, Nanostructured Materials Produced by Severe Plastic Deformationa (Logos, Moscow, 2000).
B. I. Smirnov, V. V. Shpeizman, and V. I. Nikolaev, Phys. Solid State 47, 840 (2005).
V. V. Shpeizman, V. I. Nikolaev, N. N. Peschanskaya, A. E. Romanov, B. I. Smirnov, I. A. Aleksandrov, N. A. Enikeev, V. U. Kazykhanov, and A. A. Nazarov, Phys. Solid State 49, 678 (2007).
V. V. Shpeizman, V. I. Nikolaev, B. I. Smirnov, A.B.Lebedev, V. V. Vetrov, S. A. Pul’nev, and V. I. Kopylov, Phys. Solid State 40, 1489 (1998).
V. V. Shpeizman, V. I. Nikolaev, B. I. Smirnov, A. B. Lebedev, and V. I. Kopylov, Phys. Solid State 42, 1066 (2000).
M. M. Myshlyaev, V. V. Shpeizman, and M. M. Kamalov, Phys. Solid State 43, 2099 (2001).
V. V. Shpeizman, M. M. Myshlyaev, M. M. Kamalov, and M. M. Myshlyaeva, Phys. Solid State 45, 2110 (2003).
Q. Wei, S. Cheng, K. T. Ramesh, and E. Ma, Mater. Sci. Eng. A 381, 71 (2004).
G. A. Malygin, Phys. Usp. 54, 1091 (2011).
G. T. Gray, T.C. Lower, C. M. Cady, R. Z. Valiev, and I. V. Nanostruct. Mater. 9, 477 (1997).
D. Jia, K. T. Ramesh, and E. Ma, Acta Mater. 51, 3495 (2003).
V. N. Perevezentsev, M. Yu. Scherban, A. M. Bragov, and T. G. Karnavskaya, Vestn. Nizhegorod. Univ. im. N. I. Lobachevskogo, No. 5 (2), 70 (2010).
V. M. Segal, V. I. Reznikov, A. E. Drobyshevskii, and V. I. Kopylov, Izv. Akad. Nauk SSSR, Met. 1, 115 (1981).
G. I. Taylor, Proc. R. Soc. London, Ser. A 194, 289 (1948).
E. D. Tabachnikova, A. V. Podol’skii, S. N. Smirnov, I. A. Psaruk, V. Z. Benguz, H. Li, L. Li, H. Chu, and P. K. Liao, Low Temp. Phys. 38, 239 (2012).
J. Chen, L. Lu, and K. Lu, Scr. Mater. 54, 1913 (2006).
A. M. Dolgin and V. Z. Benguz, Phys. Status Solidi A 94, 529 (1986).
O. V. Klyavin, V. I. Nikolaev, B. I. Smirnov, L. V. Khabarin, Yu. M. Chernov, and V. V. Shpeizman, Phys. Solid State 49, 1666 (2007).
Author information
Authors and Affiliations
Corresponding author
Additional information
Original Russian Text © A.B. Sinani, V.V. Shpeizman, A.S. Vlasov, E.L. Zil’berbrand, A.I. Kozachuk, 2016, published in Zhurnal Tekhnicheskoi Fiziki, 2016, Vol. 86, No. 11, pp. 70–74.
Rights and permissions
About this article
Cite this article
Sinani, A.B., Shpeizman, V.V., Vlasov, A.S. et al. High-rate deformation of nanocrystalline iron and copper. Tech. Phys. 61, 1674–1678 (2016). https://doi.org/10.1134/S1063784216110244
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S1063784216110244