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《Materials Review》 2010-23
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Research Status and Development of Rare Mg-Gd Series Alloys

HU Yaobo1,2,DENG Juan1,2,ZHAO Chong1,2,WANG Jingfeng1,2,PAN Fusheng1,2(1 College of Materials Science and Engineering,Chongqing University,Chongqing 400045;2 National Engineering Research Center for Magnesium Alloys,Chongqing 400044)  
Mg-Gd series alloys have been focus of intense investigations recent years due to their lightweight and excellent high temperature strength satisfying the need of aerospace industry.The research status of Mg-Gd series alloys is briefly introduced.The castability of Mg-Gd series alloys synthesized by the casting method is summarized in terms of oxide inclusions,fluidity,Gd element segregation and hot tearing properties.According to statistics,intensity and plasticity data of designed alloys based on Mg-Gd alloy reported in literatures is worked out.The low and room temperature strength,the high temperature mechanical properties including creep resistance,compression and short-term strength,and the respective fracture mechanism of Mg-Gd series alloys are discussed.Finally,the corrosion resistant of Mg-Gd series alloys is depicted and how to develop these series alloys is analyzed.
【Fund】: 国家重点基础研究发展计划(2007CB613704);; 国家科技支撑计划(2007BAG06B04);; 重庆市科委科技计划重大项目(CSTC 2008AB4114)
【CateGory Index】: TG146.22
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