Sb对Mg-6Al合金力学性能的影响  

Effects of Sb on Mechanical Properties of Mg-6Al Alloy

作　　者：李萍[1] 张东晓[1] 

机构地区：[1]洛阳理工学院土木工程系,河南洛阳471003

出　　处：《铸造技术》2009年第5期653-654,共2页Foundry Technology

摘　　要：为了找出Sb对镁合金力学性能的影响作用,采用拉伸试验、断口分析和组织观察,对150℃和175℃下不同Sb含量的Mg-6Al合金的抗拉强度和伸长率进行了研究,得出了Mg-6Al合金的力学性能随Sb含量的变化关系。结果表明,随着Sb含量的增加,Mg-6Al合金的抗拉强度和伸长率均先增加后降低,且均在Sb含量为1%时取得最大值。加入适量的Sb可改善Mg-6Al合金的显微组织,从而提高其力学性能。In order to find out the effect of Sb on the mechanical properties of Mg-6Al alloy, tensile tests, fracture analysis and microstructure observation are used to study the tensile strength and elongation of Mg-6Al alloy with different content of Sb at 150 ℃ and 175 ℃, and the relation between Sb and the mechanical properties of Mg-6Al alloy is obtained. The results show that with the increase of Sb content, the tensile strength and the elongation of Mg-6Al alloy increase at first stage and then decrease. And the peaks appear at 1% Sb. With the suitable content of Sb, the microstructure of Mg-6Al alloy can be improved and the mechanical properties can be promoted.

关 键 词：MG-6AL合金 SB 抗拉强度 伸长率 

分 类 号：TG113[金属学及工艺—物理冶金]