Mechanisms of high-speed deformation of polycrystalline copper |
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| Authors: | R. G. Chembarisova Y. Dong I. V. Alexandrov |
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| Affiliation: | 1.Ufa State Aviation Technical University,Ufa, Bashkortostan,Russia;2.College of Materials Science and Technology,Nanjing,People’s Republic of China |
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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. |
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