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가열주형식 연속주조법에 의한 Al-Si 합금의 응고조직에 관한 연구
김원태,문정탁,김명한,조형호 ( Won Tae Kim,Jeong Tak Moon,Myung Han Kim,Hyung Ho Jo ) 한국주조공학회 1994 한국주조공학회지 Vol.14 No.5
N/A The horizontal continuous casting method with the heated mold was applied to study the solidification structures of the pure Al and Al-0.5wt%Si and Al-1.0wt%Si alloy rods. The results could be summarized as follows: 1. The S/L interface structures of pure Al represented the hexagonal cells at the casting speed of 590 and 350㎜/min, respectively. However, the hexagonal cells became irregular as the casting speed and(or) Si amount increased. 2. The striation increased as the Si amount and casting speed increased and was found to result from the occurrence of growth twin crystals by XRD analysis. 3. The striation did not affect the mechanical and electrical property of the drawn wire from the casted rod. This means the striation is not a serious defect which has to consider in the production of micro-sized fine wire in the drawing process.