Improving tensile and compressive properties of magnesium alloy plates by pre-cold rolling

被引：251
|
作者：
Song, Bo [1 ]
Xin, Renlong [1 ,2 ]
Chen, Gang [1 ]
Zhang, Xiyan [1 ,2 ]
Liu, Qing [1 ,2 ]
机构：
[1] Chongqing Univ, Coll Mat Sci & Engn, Chongqing 400045, Peoples R China
[2] Chongqing Univ, Natl Engn Res Ctr Magnesium Alloys, Chongqing 400045, Peoples R China
来源：
SCRIPTA MATERIALIA | 2012年 / 66卷 / 12期
关键词：
AZ31; Yield asymmetry; Cold rolling; Twinning; AZ31 MG ALLOY; GRAIN-SIZE; MG-3AL-1ZN ALLOY; DUCTILITY; BEHAVIOR; DEFORMATION; TEXTURE; EVOLUTION; TWINS;
D O I：
10.1016/j.scriptamat.2012.02.047
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The tensile and compressive properties of AZ31 plates were dramatically enhanced by pre-rolling with small thickness reduction along the transverse direction. The yield asymmetry was also greatly improved. This is attributed to the subdivision of grains by introducing extension twin boundaries. Moreover, the introduction of twin boundaries had less impact on the slope of the stage Ill strain hardening curve, while it slightly prolonged the stage III curve in compression. The deformation mechanism of the materials containing twin lamellae was also discussed. (C) 2012 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：1061 / 1064
页数：4
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