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《Light Alloy Fabrication Technology》 2009-07
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Effect of smelting process on microstructures of Mg-Al-Ce-Sb alloys

LIU Sheng-xin,SUI Fang-fei,MIAO Jin-qi,GUAN Shao-kang,SUN Hua-wei(School of Materials Science and Engineering,Zhengzhou University,Zhengzhou 450002,China)  
The effects of pouring temperature and adding order of cerium and antimony on the microstructure and micro hardness of Mg-3%Al-1%Ce-1%Sb alloys were investigated by optical microscope,XRD,SEM and EDAS.The results show that the smelting process has visible influences on the microstructures of the said alloys.The second phases in Mg-3%Al-1%Ce-1%Sb alloy mainly consists of spherical particles with a slight amount of rod-like particles and the micro hardness of the alloy decreases slightly when cerium and antimony was added simultaneously and poured at a higher temperature.The spherical particles include two kinds:either containing cerium,antimony,magnesium and oxygen or bearing aluminum,antimony and oxygen.
【Fund】: 中国博士后科学基金(20070410875);; 中国教育部博士点基金(20060459007);; 郑州市科技攻关项目(063SGZG23104)
【CateGory Index】: TG113
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