Load-Elongation Curves of Pure Body-Centred Cubic Metals at Low Temperatures
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概要
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Theoretical calculations of various load-elongation curves of the [100] crystals are made on a model in which (1) velocity of screw dislocations is expressed as a function of temperature, stress, and average spacing of drag points and that of edge dislocations is infinite under finite stress, and (2) interactions between dislocations and their effects on multiplication and annihilation of dislocations are treated quantitatively. The main conclusions are (1) forest cuttings give very small work hardening, (2) a drag of densely distributed large jogs in screw dislocations gives very high work hardening, and (3) non-uniform distribution of dislocations gives instantaneous changes in flow stress at strain-rate changes.
- 社団法人日本物理学会の論文
- 1973-10-05
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関連論文
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