Thermal Recovery and Stress-Strain Relation of Polycrystalline Zinc
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概要
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Thermal recovery and its effects on the stress-strain relations of polycrystalline zinc have been investigated experimentally. Specimens were prestrained in compression at a certain temperature and under several constant strain rates, and annealed isothermally. Results obtained are summarized as follows. (1) During both the static and the dynamic deformations at -195℃, no detectable thermal recovery occurs. (2) At -195℃, the stress-strain relation is able to be determined only by the strain rate at the time within the strain rate range of 10^<-4>/s to 10^<-2> and does not depend upon the strain rate history. (3) The activation energy obtained for thermal recovery is about (10〜12)kcal/mol and this value corresponds to the migration energy of vacancies produced during the plastic deformation.
- 一般社団法人日本機械学会の論文
著者
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Ogawa Kinya
Faculty Of Engineering Kyoto University
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TANAKA Kichinosuke
Faculty of Engineering, Kyoto University
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Tanaka Kichinosuke
Faculty Of Engineering Kyoto University
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Tanaka Kichinosuke
Faculty Of Engiineering Kyoto University
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