期刊
ACTA MATERIALIA
卷 53, 期 10, 页码 3059-3069出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.actamat.2005.03.019
关键词
superplasticity; texture; grain growth; aluminium
资金
- Engineering and Physical Sciences Research Council [EP/D029201/1] Funding Source: researchfish
The effect of tension at 450 degrees C with a strain rate of 10(-3) s(-1) on the microstructure and texture of a superplastic Al-6Cu-0.4Zr alloy has been investigated. The strain rate sensitivity index was essentially constant with strain, and therefore microstructure, at m approximate to 0.45. The texture was dominated by a component centred on {011} (root 211), which became weaker with deformation. The two variants of that texture allowed the identification of bands in the microstructure which acted as internal markers, and persisted to high strain. The texture and microstructure changes are not consistent with relative grain translation via boundary sliding, and a combination of rate-sensitive slip and dynamic grain growth is a better candidate to explain the behaviour of this material. (c) 2005 Acta Materialia Inc. Published by Elsevier Ltd. 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