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Recovery in low-cycle-fatigued copper single crystals

โœ Scribed by S. Chen; G. Gottstein

Publisher
Elsevier Science
Year
1989
Tongue
English
Weight
438 KB
Volume
110
Category
Article
ISSN
0921-5093

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โœฆ Synopsis

The substructure development of copper single crystals during high temperature, low cycle fatigue and during annealing subsequent to cyclic deformation at room temperature was investigated. Neither static nor dynamic recrystallization could be initiated. Static recovery was found to lead to almost perfect dislocation networks. The results establish that dynamic recrystallization during high temperature, low cycle fatigue requires the presence of prior grain boundaries (and hence is a polycrystal effect) and confirm that softening during high temperature, low cycle fatigue is not necessarily due to dynamic recrystallization.

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