Effects of the Alloy Length on the Growth Behavior of Directionally Solidified Al-15Cu-lMg Alloy

Al-15Cu-1Mg합금의 일방향응고시 시편의 길이변화에 따른 응고거동변화

  • Moon, Cheol-Hee (Dept. of Mat.Sci. and Engr., University of Wisconsin-Madison, Samsung Display Devices co.)
  • 문철희 (위스콘신대학교 재료공학과 삼성전관 기술본부)
  • Published : 1997.08.20

Abstract

Al-15Cu-lMg alloys have been directionally solidified in 3mm diameter alumina tubes under the conditions of $760^{\circ}C$ of furnace temperature and 12 cm/hr of furnace moving velocity(V). By analyzing the evolution of the temperature profiles along the alloy length, the position of the solid/liquid interface, temperature gradient(G) and local growth velocity (R) were determined. These growth characteristics were compared for 6, 10, 14 cm length alloys. Steady state growth region was obtained in 15 cm length alloy, not in 6, 10 cm.

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