铸态Mg-Gd-Y-Zr镁合金的均质化处理  

Homogenization Treatment of As Cast Mg-Gd-Y-Zr Magnesium Alloy

作　　者：宋蕾 梁伟[1] 赵言辉 聂慧慧[1,3] SONG Lei;LIANG Wei;ZHAO Yanhui;NIE Huihui(School of Materials Science and Engineering,Taiyuan University of Technology,Taiyuan 030024,China;Xiaoyi Dongyi Magnesium Co.,Ltd.,Xiaoyi 032300,China;Department of Mechanical and Electrical Engineering,Shanxi Institute of Energy,Jinzhong 030600,China)

机构地区：[1]太原理工大学材料科学与工程学院,山西太原030024 [2]孝义市东义镁业有限公司,山西孝义032300 [3]山西能源学院机电工程系,山西晋中030600

出　　处：《热加工工艺》2018年第16期232-234,共3页Hot Working Technology

基　　金：国家自然科学基金项目(51474152)

摘　　要：通过相图及金相分析,研究了Mg-Gd-Y-Zr合金在不同热处理状态下的微观组织,确定了该合金的均质化工艺参数。结果表明：经过500℃×6 h的均质化处理,合金晶界清晰,晶粒大小不变,偏析基本消除。最佳的均质化处理工艺为500℃×6 h。The microstructure of Mg-Gd-Y-Zr alloy under different heat treatment conditions was studied by phase diagram and metallographic analysis. The homogenization process parameters of the alloy were determined. The results indicate that after homogenizing treatment at 500 ℃ for 6 h, the grain boundaries of the alloy are clear, the grain size is unchanged, and the segregation is eliminated. The optimum homogenization treatment process is 500 ℃×6 h.

关 键 词：均质化处理 显微组织 MG-GD-Y-ZR合金 

分 类 号：TG156.2[金属学及工艺—热处理]