pISSN : 1598-706X / eISSN : 2288-8381
한국주조공학회지 (29권3호 144-149)
The Microstructures and Hot Extrudability of Semi-solid AM100A Magnesium Alloy Fabricated by Cooling Plate
냉각판으로 제조한 반응고 AM100A 마그네슘 합금의 미세조직 및 열간 압출성
Dae-Hwan Kim, Young-Rock Sung, Sung-Yong Shim, Sang-Yong Lee*, Kwang-Sam Kim**, Su-Gun Lim
Gyeongsang National University, *Jinju Campus of KOREA POLYTECHNIC VII, **Yonam Institute of Digital Technology
In this study, we investigated optimum condition of cooling plate method to obtain semi-solid AM100A Mg alloy with fine and globular morphology. AM100A Mg alloy were hot extruded at 380oC extrusion temperature under extrusion ratio of 25 : 1 and ram speed of 2.4 mm/sec. Vickers hardness test, optical microscopy, scanning electron microscopy, and image analyzer were performed to identify the optimum conditions of cooling plate method. Optimum conditions of cooling plate method to fabricate semi-solid AM100A Mg alloy with fine and globular microstructures were achieved at a pouring temperature of 602oC and the angle of cooling plate of 60 degree.
Cooling plate, Hot extrusion, Semi-solid, AM100A alloy.
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