热处理对Mg-Nd-Gd-Zr稀土镁合金组织与性能的影响  

Effect of Heat Treatment on Microstructure and Mechanical Properties of Mg-Nd-Gd-Zr Alloy

作　　者：张志俊[1] 

机构地区：[1]长春工程学院机电学院,吉林长春130012

出　　处：《热加工工艺》2009年第24期172-174,共3页Hot Working Technology

摘　　要：研究了热处理工艺对Mg-Nd-Gd-Zr镁合金组织与性能的影响。结果表明,采用适当的热处理可细化镁合金的显微组织,并改善镁合金的力学性能。该合金优化的热处理工艺为530℃×2h空冷后再200℃×2h时效,在此热处理制度下,合金获得优良的综合力学性能,显微硬度达到93.4HV,抗拉强度达到187MPa。Effect of heat treatment process on the microstructure and properties of Mg-Nd-Gd-Zr alloy were investigated. The results show that appropriate heat treatment may refine the microstructure of alloy, and improve its mechanical properties. The optimum heat treatment process of Mg-Nd-Gd-Zr alloy is 530 ℃ for 2 h and then aging at 200 ℃ for 2 h. After heat treating, the alloy possesses good mechanical properties. Its hardness and tensile strength reaches 93.4 HV and 187 MPa, respectively.

关 键 词：Mg-Nd-Gd-Zr镁合金 热处理工艺 微观组织 力学性能 

分 类 号：TG156.9[金属学及工艺—热处理]