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김도용(Doyong Kim),마창익(Chanik Ma),김대업(Daeup Kim),한요섭(Yosub Han),이재철(Jaechul Lee) 한국자동차공학회 2002 한국자동차공학회 춘 추계 학술대회 논문집 Vol.2002 No.5_3
Effect of various casting conditions on the microstructures and cooling behaviors of the semi-solid A356 alloy were investigated. Cooling of A356 melt was carried out under the various conditions(melt pouring temp. : 620~690℃, mold temp. : RT-350℃, atmosphere cooling or insulation). The size and morphology of primary solid phases during continuous cooling were influenced by melt and mold conditions. When melt superheat was below 35℃, it occurred undercooling and then resulted in equiaxed solidification. In case of slow cooling rate, it was effective in forming of round phases.