Effects of Ca and electromagnetic stirring on microstructures and mechanical properties of Mg-Li-Al alloys

被引：0

作者：

Hao, Hai ^{[1
]}

Yao, Lei ^{[1
]}

Gu, Song-Wei ^{[1
]}

Ma, Lei-Juan ^{[1
]}

Zhang, Xing-Guo ^{[1
]}

机构：

[1] School of Materials Science and Engineering, Dalian University of Technology, Dalian 116024, China

来源：

Zhongguo Youse Jinshu Xuebao/Chinese Journal of Nonferrous Metals | 2010年 / 20卷 / 06期

关键词：

Aluminum alloys - Magnesium alloys - Ternary alloys - Lithium alloys - Tensile strength;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

The effects of Ca and combined electromagnetic stirring and Ca on the microstructures and mechanical properties of Mg-8%Li-3%Al alloys were studied, and the relationships among the chemical composition, microstructures and mechanical properties were discussed. The results show that both Ca and combined electromagnetic stirring and Ca improve the microstructures and mechanical properties of Mg-8%Li-3%Al alloys. Adding 0.5% Ca into the as-cast alloys, the β phase becomes thinner, and the tensile strength and elongation reach to 188.93 MPa and 11.35%, respectively. The microstructure is fine and uniform, and the Brinell hardness, tensile strength, and elongation are 67.5 HB, 203.8 MPa and 7.7% at electromagnetic stirring of 80 V combined with 0.5%Ca.

引用

页码：1060 / 1068