Abnormal Plastic After-Effect in Twisted Copper
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概要
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The plastic after-effect in twisted copper wires were investigated at temperatures between -195℃ and +96℃. The abnormal plastic after-effect, i.e. retwisting of the specimen after the release of external stress, was found in specimens pre-annealed at lower temperatures between about 150℃ and about 300℃. Activation energies for the after-effect were determined and found to be dependent on the amount of after-effect strain. The abnormal after-effect found in the present investigation was tentatively interpreted to be due to the movement of dislocations piled-up against subboundaries. The observed logarithmic time law and the change in activation energy seem to be consistent with this interpretation.
- 東北大学の論文
著者
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HASIGUTI Ryukiti
Department of Metallurgy, University of Tokyo
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Hasiguti Ryukiti
Department Of Mechanical Engineering Faculty Of Engineering The Science University Of Tokyo
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Koiwa Masahiro
The Research Institute For Iron Steel And Other Metals Tohoku University
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Koiwa Masahiro
The Research Institute For Iron Steel And Other Metals
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