pISSN : 1598-706X / eISSN : 2288-8381
한국주조공학회지 (36권6호 215-221)
Microstructures and Mechanical Properties of AM80-xSn Magnesium Alloys with Semi-Solid casting and Hot Extrusion Process
AM80-xSn 마그네슘 합금의 반응고 주조 및 압출에 따른 미세조직 및 기계적 특성
Dae-Hwan Kim*,***, In-Taek Im**, Qinlin Jin**** and Su-Gun Lim*,***†
*ReCART, Gyeongsang National Univ., Jinju 52828, Korea,**Dept. of production engineering, Gyeongsang National Univ., Jinju 52828, Korea,***Dept. of materials manufacturing processing, Gyeongsang National Univ., Jinju 52828, Korea ****Kunming University of
In a recent study, the microstructures and mechanical properties of AM80-xSn m magnesium alloys with semi solid casting and hot extrusion process were investigated. With increasing Sn content, the amount of β( (Mg2Sn) phase increased, while the (Mg2Sn) phase increased, while the α-Mg dendritic size decreased. The hardness was increased by the Mg2Sn as the Sn content inc increased. With increasing Sn content, permanent mold cast and semi solid cast AM80 Mg alloy showed less reduction of hardness and al also of extruded AM80 Mg alloy after annealing. In the case of the mechanical properties, the extruded semi solid casting A AM80 Mg alloy showed higher tensile strength and yield strength with increasing Sn content compared to the extruded permanent mold cast AM80 Mg alloy at room temperature.
Semi-solid casting, Mg2Sn, Sn-addition, Hot-extrusion
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