耐热镁合金研究应用现状及强化机制  

Research and application of heat-resistant magnesium alloy and its strengthening mechanism

作　　者：文丽华[1] 吉泽升[2] 

机构地区：[1]黑龙江工程学院机电工程学院,黑龙江哈尔滨150050 [2]哈尔滨理工大学材料科学与工程学院,黑龙江哈尔滨150040

出　　处：《轻合金加工技术》2014年第12期28-34,50,共8页Light Alloy Fabrication Technology

基　　金：哈尔滨市科技局青年基金(2011RFQXG020);哈尔滨理工大学"材料研究与应用"省高校重点实验室开放基金

摘　　要：综述了RE、Ca、Si和Bi等合金元素对镁合金高温性能的影响。介绍了耐热镁合金在汽车、动力系统、航空航天及军事等领域的应用。讨论了耐热镁合金的几种强化方法,包括沉淀强化、固溶强化、细晶强化、复合强化。指出了开发耐热镁合金应注意的问题。This article reviews the effects of alloy elements,including RE, Ca, Si and Bi, on the high-temperature properties of magnesium alloy, introduces the application of heat-resistant magnesium alloy in automobile, the dynamical system, aerospace and military, and discusses some strengthening mechanisms, such as deposition strengthening, solid-solution strengthening, fine-grain strengthening and composite reinforcement. The problems are brought forward that should be focused on in the development of heat-resistant magnesium alloy.

关 键 词：耐热镁合金 高温性能 强化机制 

分 类 号：TG146.22[一般工业技术—材料科学与工程]