Mg-Al-Zn-Mn系铸造镁合金力学性能研究  

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

作　　者：张宇辉[1] 高德明[1] 张洪军[1] 华勤[1] 翟启杰[1] 

机构地区：[1]上海大学

出　　处：《特种铸造及有色合金》2005年第9期517-519,共3页Special Casting & Nonferrous Alloys

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。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_b=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.

关 键 词：镁合金 金属型 重力铸造 力学性能 

分 类 号：TG136.1[一般工业技术—材料科学与工程]