Tensile properties and microstructure of AZ31B magnesium alloy sheet processed by repeated unidirectional bending

被引：24
作者：
Huang Guang-sheng [1 ,2 ]
Li Hong-cheng [1 ,2 ]
Song Bo [1 ,2 ]
Zhang Lei [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 400044, Peoples R China
来源：
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA | 2010年 / 20卷 / 01期
基金：
中国国家自然科学基金;
关键词：
repeated unidirectional bending; magnesium alloys; texture; mechanical properties; microstructure; ELEVATED-TEMPERATURES; MECHANICAL-PROPERTIES; TEXTURAL EVOLUTION; ROOM-TEMPERATURE; FORMABILITY;
D O I：
10.1016/S1003-6326(09)60092-3
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
The mechanical properties of the AZ31B magnesium alloy sheet processed by repeated unidirectional bending (RUB) with a basal pole tilted in the rolling direction were systematically investigated at different temperatures. Compared with the as-received sheet exhibiting approximately the same average grain size, the fracture elongation increased while the proof stress decreased at room temperature. The initial texture had a significant influence on the mechanical properties at room temperature, while it showed a much weaker effect on the mechanical properties because of the activation of non-basal slips and initiation of dynamic recrystallization during deformation at elevated temperature.
引用
收藏
页码：28 / 33
页数：6
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