Activation Free Energy of Nucleation of a Dislocation Pair in Magnesium
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- Uranagase Masayuki URANAGASE Masayuki
- Department of Mechanical Engineering and Science, Graduate School of Engineering, Kyoto University
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- Kamigaki Sana KAMIGAKI Sana
- Department of Mechanical Engineering and Science, Graduate School of Engineering, Kyoto University
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- Matsumoto Ryosuke [他] MATSUMOTO Ryosuke
- Department of Mechanical Engineering and Science, Graduate School of Engineering, Kyoto University
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- MIYAZAKI Noriyuki
- Department of Mechanical Engineering and Science, Graduate School of Engineering, Kyoto University
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Author(s)
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- Uranagase Masayuki URANAGASE Masayuki
- Department of Mechanical Engineering and Science, Graduate School of Engineering, Kyoto University
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- Kamigaki Sana KAMIGAKI Sana
- Department of Mechanical Engineering and Science, Graduate School of Engineering, Kyoto University
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- Matsumoto Ryosuke [他] MATSUMOTO Ryosuke
- Department of Mechanical Engineering and Science, Graduate School of Engineering, Kyoto University
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- MIYAZAKI Noriyuki
- Department of Mechanical Engineering and Science, Graduate School of Engineering, Kyoto University
Abstract
Kink deformation is one of the possible principal deformation modes of alloys with a long-period stacking ordered structure under compression parallel to the basal plane. In this deformation, dislocation pairs are massively nucleated, and these dislocations align in a line to form kink bands. In this study, we investigated the nucleation of a dislocation pair in a pure magnesium single crystal by molecular dynamics simulations. We also evaluated the activation free energy of nucleation of a dislocation pair and investigated the dependence of the activation free energy on the applied shear stress and temperature.
Journal
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- MATERIALS TRANSACTIONS
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MATERIALS TRANSACTIONS 54(5), 680-685, 2013-05-01
Mining and Materials Processing Institute of Japan
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