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所属单位：材料科学与技术学院

发表刊物：MATERIALS RESEARCH EXPRESS

关键字：As-cast Mg-4Y-xZn alloys microstructure thermal conductivity electrical conductivity

摘要：In this study, the effects of the addition of Zn on the microstructures, thermal and electrical conductivity of as-castMg-4Y-xZn (x = 1, 2, 3, and 4 wt%) alloys were investigated. Results reveal that with the increase of Zn content, the second-phase transformation from the X phase to the W phase occurs. Except for the WZ43 alloy, the amount of solute atoms in the alpha-Mg matrix decreases with the increase of Zn, leading to the decreased lattice distortion and increased thermal conductivity. Therefore, the obtained highest electrical and thermal conductivity of the WZ44 alloy are 13.73 Sm-1 and 95.61W.m(-1).K-1, respectively. The correlation between the electrical conductivity and the thermal conductivity was characterized by the equation lambda = 0.890L(0)T sigma + 6.96 on the basis of the Smith-Palmer equation.

ISSN号：2053-1591

是否译文：否

发表时间：2018-06-01

合写作者：武亚杰,刘子利,陆程,谢焕建,李健

通讯作者：刘希琴