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Effects of Ca Addition on Grain Refinement and Mechanical Properties of AZ31 Magnesium Alloy  

Jin, Qing-Lin (School of Materials Engineering,Engineering Research Institute, Gyeongsang National University)
Eom, Jeong-Pil (School of Materials Engineering,Engineering Research Institute, Gyeongsang National University)
Lim, Su-Gun (School of Materials Engineering,Engineering Research Institute, Gyeongsang National University)
Park, Won-Wook (School of Nano Engineering, Inje university)
You, Bong-Sun (Korea Institute of Machinery and Materials)
Publication Information
Journal of Korea Foundry Society / v.23, no.5, 2003 , pp. 251-256 More about this Journal
Abstract
Effects of Ca addition on grain refinement, microstructure and mechanical properties of AZ31 Mg alloy were investigated. Due to Ca addition to Mg alloy (AZ31), the microstructure was refined, the quantity of $Mg_{17}Al_{12}$phase was reduced, and new $Al_2Ca$ phase was formed. The tensile property of AZ31 was increased with the minor addition of Ca, but was decreased rapidly over 0.2 wt.% of Ca content. The $Al_2Ca$ phase was considered to be detrimental to the mechanical property of AZ31 Mg alloy.
Keywords
AZ3l Mg alloy; Ca addition; Grain refinement; Mechanical property;
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