Mechanical Properties of Mg-Al-Zn-Mn Series Cast Magnesium Alloys

Zhang Yuhui~1 Gao Deming~

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Mechanical Properties of Mg-Al-Zn-Mn Series Cast Magnesium Alloys
Issue 9, Pages: 517-519(2005)
Published： 2005 ，
DOI：

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[1]张宇辉,高德明,张洪军,华勤,翟启杰.Mg-Al-Zn-Mn系铸造镁合金力学性能研究[J].特种铸造及有色合金,2005(09):517-519+509.

Zhang Yuhui~1 Gao Deming~. Mechanical Properties of Mg-Al-Zn-Mn Series Cast Magnesium Alloys. [J]. Special Casting & Nonferrous Alloys (9):517-519(2005)
[1]张宇辉,高德明,张洪军,华勤,翟启杰.Mg-Al-Zn-Mn系铸造镁合金力学性能研究[J].特种铸造及有色合金,2005(09):517-519+509. DOI：

Zhang Yuhui~1 Gao Deming~. Mechanical Properties of Mg-Al-Zn-Mn Series Cast Magnesium Alloys. [J]. Special Casting & Nonferrous Alloys (9):517-519(2005) DOI：

摘要

开发了一种适合重力铸造的Mg-Al-Zn-Mn系镁合金

并研究了其力学性能与成分之间的关系

找出最优化的合金成分Mg-9Al-0.8Zn-0.3Mn

经T6工艺热处理后

室温下抗拉强度为270MPa

屈服强度为162MPa、伸长率为3.88%。同时分析了T6热处理前后合金力学性能变化的原因以及显微组织特征。

Abstract

The relation between the mechanical properties and chemical compositions of self-developed Mg-Al-Zn-Mn series Mg alloy suitable for gravity casting was investigated to have determined the optimized composition Mg-9Al-0.8Zn-0.3Mn alloy.The mechanical properties of the T6 heat treated Mg alloy at ambient temperature are as follows: tensile strength σ

=270 MPa

yield strength σ

0.2

=162 MPa and elongation δ=3.88%.The changes of mechanical properties and microstructural characteristics of the Mg alloy after T6 heat treatment were compared with those of untreated ones.