Mg-Gd-Y-Zr高强耐热镁合金的研究进展  

Research progress of high strength and heat resistant Mg-Gd-Y-Zr alloys

作　　者：吴文祥[1] 靳丽[1] 董杰[1] 章桢彦[1] 丁文江[1,2] 

机构地区：[1]上海交通大学轻合金精密成型国家工程研究中心,上海200240 [2]上海交通大学金属基复合材料国家重点实验室,上海200240

出　　处：《中国有色金属学报》2011年第11期2709-2718,共10页The Chinese Journal of Nonferrous Metals

基　　金：国家"十二五"科技支撑计划资助项目(2011BAE22B06);上海市汽车工业科技发展基金会资助项目(0911)

摘　　要：Mg-Gd-Y-Zr合金由于具有优异的室温、高温力学性能及抗蠕变性能而成为镁合金研究的热点。本文作者总结国内外Mg-Gd-Y-Zr合金的研究进展,分析熔体纯净化技术开发现状、热变形行为、强化机制以及断裂机制,讨论Mg-Gd-Y-Zr合金蠕变机理、腐蚀机理及表面处理技术的研究情况,并对Mg-Gd-Y-Zr合金固态回收技术进行介绍,最后,对该合金未来的发展方向进行展望。Mg-Gd-Y-Zr alloys are increasingly investigated in recent years due to their excellent mechanical properties at room and elevated temperatures and good creep resistance.The research progress on the alloys all over the world was reviewed,and then the development of new flux,hot deformation behavior,strengthening mechanisms and fracture mechanisms were analyzed.Moreover,the creep mechanism,corrosion mechanism,surface treatment technology and the solid-state recycling on Mg-Gd-Y-Zr alloys were summarized.At last,further research areas on Mg-Gd-Y-Zr alloys were suggested.

关 键 词：MG-GD-Y-ZR镁合金 高强耐热 腐蚀行为 时效析出 固态回收 

分 类 号：TG146.2[一般工业技术—材料科学与工程]