期刊
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
卷 462, 期 1-2, 页码 193-196出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.msea.2005.12.113
关键词
magnesium; twinning; grain size; strain hardening rate; Taylor orientation factor
The strain hardening behaviour of randomly oriented polycrystals deformed in tension and compression is analysed using the Kocks-Mecking phenomenological approach. At low stresses, an extended regime of linear hardening consistent with an athermal forest hardening mechanism, akin to that observed in face-centered cubic metals, is observed. The increase in yield strength with decreasing grain size can also be accounted for by relating the mean free path of dislocations to the grain size. Profuse twinning in compression seems to have little or no effects on the overall strain hardening behaviour. (C) 2006 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据