Mg-Gd系铸造镁合金时效析出相研究现状及展望  

Research Progress and Prospect of Precipitated Phase of Mg-Gd Casting Alloys

作　　者：庞松 华溪如 陶静雅 季松 龚政轩 王堃[1,3] 候正全 戴铮 陈斌 肖旅[1,2] PANG Song;HUA Xiru;TAO Jingya;JI Song;GONG Zhengxuan;WANG Kun;HOU Zhengquan;DAI Zheng;CHEN Bin;XIAO Lv(Shanghai Aerospace Precision Machinery Institute,Shanghai 210016,China;Shanghai Engineering Research Center of Near-Net-Shape Forming for Metallic Materials,Shanghai 210016,China;School of Material Science and Engineering,Shanghai Jiaotong University,Shanghai 200240,China)

机构地区：[1]上海航天精密机械研究所,上海210016 [2]上海金属材料近净成形工程技术中心,上海210016 [3]上海交通大学材料科学与工程学院,上海200240

出　　处：《铸造工程》2023年第1期1-8,共8页Foundry Engineering

基　　金：国家自然科学基金(U2037601)。

摘　　要：概述了目前国内外Mg-Gd系铸造镁合金析出强化的研究进展,介绍了析出行为和强化机制对镁合金组织与性能的影响。综合目前的研究结果,认为析出强化是Mg-Gd系铸造镁合金高强力学性能的主要来源,合金化及其热处理是未来新型高强Mg-Gd系铸造镁合金的研究方向。The research progress of precipitation strengthening of Mg-Gd cast magnesium alloys at home and abroad was reviewed.The effects of precipitation behavior and strengthening mechanism on the microstructure and properties of magnesium alloys were introduced.Based on the current research results,it is concluded that precipitation strengthening is the main source of high strength mechanical properties of Mg-Gd cast magnesium alloys,and alloying and heat treatment is the future research direction of new high strength Mg-Gd cast magnesium alloys.

关 键 词：铸造镁合金 MG-GD 析出强化 

分 类 号：TG244[金属学及工艺—铸造]