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Effect of compounds precipitation on thermal conductivity of Mg-Sn binary alloy
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Key Laboratory for Anisotropy and Texture of Materials Ministry of Education,Northeastern University,Key Laboratory for Anisotropy and Texture of Materials Ministry of Education,Northeastern University,National Engineering Research Center for Magnesium Alloys,Chongqing University,National Engineering Research Center for Magnesium Alloys,Chongqing University,National Engineering Research Center for Magnesium Alloys,Chongqing University,National Engineering Research Center for Magnesium Alloys,Chongqing University

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    Abstract:

    In this work, effects of the Sn additions (3 wt.%, 6 wt.%, 9 wt.%)on thermal conductivities of the as-cast, as-homogenized and as-aged Mg-Sn binary alloys were investigated. The results showed that thermal conductivities of the both as-cast and as-homogenized Mg-Sn alloys decreased with content of Sn addition, and corresponding thermal conductivity of the as-homogenized Mg-10Sn decreased as 52.6W/m.K. Compared with as-homogenized sample, thermal conductivity of the as-cast alloy with the same solute content was lower. Thermal conductivity of the Mg-Sn alloy increased with aging treatment, and thermal conductivities of the as-aged Mg-3Sn, Mg-6Sn and Mg-10Sn alloys saturated as 125W/m.K, 120W/m.K and 110W/m.K respectively. Purification of the Mg matrix contributed to the thermal conductivity increment, and atomic size, electron configuration and the charge of the Sn element determined the thermal conductivity of the Mg-Sn alloy.

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[Hucheng Pan, Yunmiao Huang, Zhengyuan Gao, Qiuyan Huang, Jian Peng, Fusheng Pan. Effect of compounds precipitation on thermal conductivity of Mg-Sn binary alloy[J]. Rare Metal Materials and Engineering,2017,46(11):3311~3315.]
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History
  • Received:September 07,2015
  • Revised:November 10,2015
  • Adopted:December 08,2015
  • Online: December 13,2017

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