温变形对AZ31镁合金组织的影响  

Study on deformed microstructure of AZ31 magnesium alloy

作　　者：张星[1] 张治民 李保成[1] 

机构地区：[1]华北工学院材料工程系,太原030051 [2]山西省集成精密成形工程技术研究中心,太原030051

出　　处：《塑性工程学报》2004年第3期52-54,共3页Journal of Plasticity Engineering

基　　金：山西省自然科学基金项目 (2 0 0 310 4 5 )资助

摘　　要：为了有效细化镁合金的晶粒 ,以提高其力学性能 ,通过对铸态AZ31进行等温压缩实验 ,并采用现代微观分析手段 ,研究变形参数对AZ31镁合金组织的影响。结果表明 :2 10℃变形可以显著地细化铸造AZ31合金的晶粒 ,其尺寸可由铸态的约 10 0 μm减少到 5 μm左右 ;同时证明温变形能明显提高镁合金的抗拉强度。In order to improve magnesium alloy performance that make use of the deformed technology, the compress test of cast AZ31 alloy was presented. By means of modern microcosmic analysis method, the effects that the deformed parameter to microstructure of AZ31 magnesium alloy were investigated. The results show that the grain of AZ31 as cast will be fined by compression deformation and dynamic recrystallization at the temperature of 210℃, the grain size decrease from about 100μm to 5μm;At the same time, the tensile strength of magnesium alloy have been effective heightened by the warm-deformation.

关 键 词：镁合金 温变形 动态再结晶 组织性能 

分 类 号：TG146.2[一般工业技术—材料科学与工程]