Enhanced mechanical properties and formability of hot-rolled Mg-Zn-Mn alloy by Ca and Sm alloying

被引：29
作者：
Fan, Wen-xue [1 ]
Bai, Yu [1 ,2 ]
Li, Guang-yang [1 ]
Chang, Xing-yang [1 ]
Hao, Hai [1 ,2 ]
机构：
[1] Dalian Univ Technol, Sch Mat Sci & Engn, Dalian 116024, Peoples R China
[2] Dalian Univ Technol, Ningbo Res Inst, Ningbo 315016, Peoples R China
来源：
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA | 2022年 / 32卷 / 04期
关键词：
Mg-Zn-Mn alloy; micro-alloying; hot rolling; texture evolution; formability; STRETCH FORMABILITY; ROOM-TEMPERATURE; TEXTURE; MICROSTRUCTURE; RECRYSTALLIZATION; CE; DUCTILITY; EVOLUTION; BEHAVIOR; CALCIUM;
D O I：
10.1016/S1003-6326(22)65860-6
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
In order to broaden the application of wrought Mg alloy sheets in the automotive industry, the influence of Ca and Sm alloying on the texture evolution, mechanical properties, and formability of a hot-rolled Mg-2Zn-0.2Mn alloy was investigated by OM, XRD, SEM, EBSD, tensile tests, and Erichsen test. The results showed that the average grain size and basal texture intensity of Mg-2Zn-0.2Mn alloys were remarkably decreased after Ca and Sm additions. 0.64 wt.% Ca or 0.48 wt.% Sm addition significantly increased the tensile strength, ductility and formability. Moreover, the synergetic addition of Sm and Ca improved the ductility and formability of Mg-2Zn-0.2Mn alloy, which was due to the change of Ca distribution and further reduction of the size of Ca-containing particles by Sm addition. The results provided a possibility of replacing RE elements with Ca and Sm in Mg alloys which bring about outstanding mechanical properties and formability.
引用
收藏
页码：1119 / 1132
页数：14
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