pISSN : 1598-706X / eISSN : 2288-8381
한국주조공학회지 (23권5호 251-256)
Effects of Ca Addition on Grain Refinement and Mechanical Properties of AZ31 Magnesium Alloy
AZ31 마그네슘합금의 결정립 미세화 및 기계적 특성에 미치는 Ca 첨가의 영향
Qinglin Jin, Jeong-Pil Eom, Su-Gun Lim, Won-Wook Park*, Bong-Sun You**
Gyeongsang National University, * Inje University, **Korean Institute of Machinery and Materials
Effects of Ca addition on grain refinement, microstructure and mechanical properties of AZ31 Mg alloy were investigated. Due to Ca addition to Mg alloy (AZ3 1 ), the microstructure was refined, the quantity of Mgr,Al,2 phase was reduced, and new Al2Ca 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 A12Ca phase was considered to be detrimental to the mechanical property of AZ31 Mg alloy.
AZ31 Mg alloy, Ca addition, Grain refinement, Mechanical property
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