한국주조공학회

Continuous casting of the$Al-Al_3Ni: eutectic composite was carried out by the upward continuous casting process. The morphology of the eutectic growth and the stability of solid-liquid interface were investigated under various growth conditions in an upward continuous casting. The effect of growth conditions on the mechanical properties of the Al-Al_3 Ni eutectic composit was also investigated, and the results were compared with those by the Bridgman method. As for the results, it was possible to get the planar solid-liquid interface at the condition of G_L/R＝1.04x10^3^℃sec/mm^2. And the inter-rod spacing of Al-Al_3Ni eutectic composite was decreased with the increase of pulling speed. The reduction of inter-rod spacing & value of G_L/R caused the increase of ultimate tensile strength in Al-Al_3Ni: eutectic composite. The ultimate tensile strengths of Al-Al_3Ni by the upward continuous casting were higher then those by the Bridgman method.