Thermal Stability of Microstructure and Microhardness of Heterophase BCC-Alloys After Torsional Deformation on Bridgman Anvils
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The results of investigations of thermal stability of microstructure and microhardness of alloys of the V–4Ti–4Cr and Mo–47Re systems, subjected to torsional deformation by high quasi-hydrostatic pressure at room temperature, are reported. It is shown that submicrocrystalline and nanocrystalline states, and the respective high values of microhardness, persist up to the upper bound (~0.4 Тmelt) of the temperature interval of their recovery and polygonization in a single-phase state. The main factors ensuring thermal stability of highlydefective states in heterophase alloys are discussed.
KeywordsBCC-alloys based on vanadium and Mo–Re large plastic deformations high-pressure torsion microhardness transmission and scanning electron microscopy submicrocrystalline and nanocrystalline states thermal stability
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- 1.R. Z. Valiev and I. V. Aleksandrov, Nanostructured Materials Produced by Severe Plastic Deformation [in Russian], Logos, Moscow (2000).Google Scholar
- 7.S. A. Vins, I. A. Ditenberg, A. N. Tyumentsev, and Korznikova, Izv. Vyssh. Uchebn. Zaved. Fiz., 52, 12/2 (2009).Google Scholar
- 11.A. N. Tyumentsev, A. D. Korotaev, Yu. P. Pinzhin, et al., J. Nucl. Mater., 329– 333, 429–433 (2004).Google Scholar
- 12.V. V. Monako, A. N. Tyumentsev, A. D. Korotaev, et al., Fiz. Met. Metalloved., 78, No. 1, 152–161 (1994).Google Scholar
- 13.A. N. Tyumentsev, I. A. Ditenberg, A. D. Korotaev, and K. I. Denisov, Zh. Fiz. Mezomekh., 16, No. 3, 63–79 (2013).Google Scholar
- 15.I. A. Ditenberg, S. A. Malakhova, A. N. Tyumentsev, and A. V. Korznikov, Persp. Mater., Spec. Iss. No. 12, 306–310 (2011).Google Scholar