Variation of Flow Stress of Copper Single Crystals after Changes in Strain Rate
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概要
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Load-elongation curves of copper single crystals with low-index orientations, deformed with variable extension velocity, were observed in a wide temperature range. The variation of the flow stress after changes in strain rate was analyzed as a superposition of the three processes: (a) effect of discontinuous slip on the primary slip system, (b) thermally activated motion of the secondary dislocations in cell walls, and (c) the variation of the edge dislocation density of the primary slip system in cell walls. The strain-rate sensitivity of the flow stress in mainly caused by the process (b) below 400℃ and by the process (c) above 600℃. The particular behaviour observed in the [001] crystals were also discussed.
- 社団法人日本物理学会の論文
- 1976-12-15
著者
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Takeuchi Tomoyuki
National Nesearch Institute For Metals
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Takeuchi Tomoyuki
National Research Institute For Matals
関連論文
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- The Condition for the Appearance of Necking under Tensile Tests
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- Load-Elongation Curves of Pure Body-Centred Cubic Metals at Low Temperatures
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- Temperature Dependence of Work-hardening Rate in Iron Single Crystals
- Orientation Dependence of Work Hardening of Copper Single Crystals near the [001] Axis
- Twinning Stress in Pre-Strained Iron Single Crystals
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