期刊
THEORETICAL AND APPLIED MECHANICS LETTERS
卷 1, 期 1, 页码 -出版社
ELSEVIER
DOI: 10.1063/2.1101107
关键词
aluminum alloys; Portevin-Le Chatelier effect; dynamic strain aging; tension test
类别
资金
- National Natural Science Foundation of China [10732080, 10872189]
In the alloy with solute content higher than the limiting solubility, the solute atoms that have failed to dissolve will precipitate from the solid solution and form precipitations. In this study, the Portevin-Le Chatelier (PLC) effects in annealed 5456 and 5052 aluminum alloys with different precipitation contents have been investigated under different applied strain rates. The results suggest that precipitations have significant effect on the PLC effect and the more the precipitations are, the greater the influence is. Furthermore, the solute diffusion is pipe diffusion in 5052 alloy with lower precipitation content. However, for 5456 alloy with higher precipitation content, the diffusion is no longer the case but more complex. (C) 2011 The Chinese Society of Theoretical and Applied Mechanics.
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