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《Hot Working Technology》 2017-12
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Effect of Sm and Zr Compound Addition on Microstructure and Property of Magnesium-copper Alloy

DONG Jialiang;FENG Zhongxue;YANG Yingxiang;XU Zhichao;SHI Qingnan;CHEN Liangwei;WANG Xiaoqi;QI Huarong;School of Material Science and Engineering,Kunming University of Science and Technology;  
The Mg-Cu alloy with Sm and Zr added was analyzed by SEM, EDX and XRD. The mechanical properties of the alloy were studied. The results show that the refinement effect of Sm element is not obvious, so the grain size is coarse. Sm element has the effect of attracting Cu distributing within the grain, which forms Cu Sm phase to enhance the strength of the alloy. The refinement effect of Zr is obvious. A small amount of CuZr_2 phase appears in grain, which can improve the plasticity of the alloy, but the stregthening effect for the alloy is not obvious. The prepared Mg_(98)Cu_1Sm_(0.5)Zr_(0.5) alloy has better strengthening and toughening effect compared with Mg-Cu alloy.
【Fund】: 省级人培项目(KKSY201351055);; 教育部博士点基金项目(20135314110003)
【CateGory Index】: TG146.22
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