锑和混合稀土对AZ31镁合金高温变形行为的影响  

Effect of Antimony and Rare Earth on Hot Deformation Behavior of AZ31 Magnesium Alloy

作　　者：马庆波[1] 刘胜新[1] 李庆奎[1] 刘俊[1] 李双喜[1] 关绍康[1] 陈永[1] 

机构地区：[1]郑州大学材料科学与工程学院,河南郑州450002

出　　处：《机械工程材料》2007年第4期82-84,94,共4页Materials For Mechanical Engineering

基　　金：河南省自然科学基金(411052100);郑州市重大科技攻关项目(052SGBG29052)

摘　　要：借助Gleeble-1500D型热模拟试验机,研究了锑和混合稀土对AZ31镁合金在不同温度下(260～420℃)的热压缩流变应力和动态再结晶的影响。结果表明:AZ31镁合金的变形抗力随变形温度的升高逐渐减小;分别加入质量分数为1%RE和1%Sb后,其变形抗力显著增大,同时有效促进了热变形过程中的动态再结晶。The effect of antimony and rare earth on the flow stress and dynngzhou amic recrystallization of AZ31 magnesium alloy at different temperature （260- 420 ℃ ） was investigated by hot compression testing on a Gleeble-1500D thermal simulator. The results have indicated that the resistance of deformation is decreased by the elevation of deformation temperature; at the same temperature, the additions of 1%RE and 1%Sb to the AZ31 magnesium could effectively improve the resistance obviously and accelerate the dynamical recrystalization.

关 键 词：锑 混合稀土 AZ31镁合金 流变应力 动态再结晶 

分 类 号：TG146.2[一般工业技术—材料科学与工程]