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Effect of Cu Addition on Thermal Properties of Mg-6Zn-xCu alloys
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  • Journal title : Journal of Korea Foundry Society
  • Volume 35, Issue 4,  2015, pp.67-74
  • Publisher : The Korean Foundrymens Society
  • DOI : 10.7777/jkfs.2015.35.4.067
 Title & Authors
Effect of Cu Addition on Thermal Properties of Mg-6Zn-xCu alloys
Ye, Dea-Hee; Kim, Hyun-Sik; Kang, Min-Cheol; Jeong, Hae-Yong;
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In this study, Mg-Zn alloys are investigated in terms of their thermal properties after an addition of Cu. Al element is added to improve the mechanical properties and castability in general case. However, it was excluded here because it significantly decreases the thermal conductivity. On the other hand, Zn was added as a major element, which had less influence on reducing the conductivity and can complement the mechanical properties as well. Cu was also added, and it improved the heat transfer characteristics as the amount was increased. The composition ranges of Zn and Cu are 6 wt.% and 0~1.5 wt.%, respectively. Mg-6Zn-xCu alloy was prepared by a gravity casting method using a steel mold and then the thermal conductivity and the microstructure of the as-cast material were investigated. By measuring the density_(), specific heat_(Cp) and thermal diffusivity_(), the thermal conductivity_() was calculated by the equation ${\lambda}
Mg-6Zn-xCu alloys;Thermal diffusivity;Thermal conductivity;Thermal emission;Effect of Cu addition;
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