Effects of strain, strain rate and temperature on deformation twinning in a Cu-Zn alloy

被引：98
作者：
Xiao, G. H. [1 ]
Tao, N. R. [1 ]
Lu, K. [1 ]
机构：
[1] Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Peoples R China
来源：
SCRIPTA MATERIALIA | 2008年 / 59卷 / 09期
基金：
中国国家自然科学基金;
关键词：
Nanoscale deformation twins; Cu-Zn alloy; Strain; Strain rated; Temperature;
D O I：
10.1016/j.scriptamat.2008.06.060
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The effects of strain, strain rate and temperature on deformation twinning in a Cu-Zn alloy were systematically investigated by means of transmission electron microscopy. With increasing strain, the average twin layer thickness (lambda) decreased slightly while the average twin boundary spacing (Delta) decreased significantly; both saturated at the same value when strain exceeds 1.2. Variations of lambda. with strain rate and temperature were analyzed by using the Zener-Hollomon parameter, Z, and it was found that a larger Z leads to a smaller lambda. (C) 2008 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：975 / 978
页数：4
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