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Mechanisms of high-speed deformation of polycrystalline copper


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Abstract

The mechanisms of high-speed deformation of ultrafine-grained copper produced during severe plastic deformation by equal-channel angular pressing were analyzed using numerical modeling in comparison with those in the case of coarse-crystalline copper. The activity of annihilation processes during nonconservative motion and double cross slip of dislocations was estimated. Their effect on the macroscopic behavior of samples is shown.

About the authors

R. G. Chembarisova

Ufa State Aviation Technical University

Author for correspondence.
Email: chroza@yandex.ru
Russian Federation, ul. K. Marksa 12, Ufa, Bashkortostan, 450000

Y. Dong

College of Materials Science and Technology

Email: chroza@yandex.ru
China, Nanjing, 210016

I. V. Alexandrov

Ufa State Aviation Technical University

Email: chroza@yandex.ru
Russian Federation, ul. K. Marksa 12, Ufa, Bashkortostan, 450000

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