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pISSN : 1598-706X / eISSN : 2288-8381


(논문)연구논문

한국주조공학회지 (12권3호 203-209)

Crystal Growth of Al-Cr and Al-Ti Peritectic Alloys by the Upward Continuous Casting Proces

상향식 연속주조법에 의한 Al-Cr 및 Al-Ti 2원계 포정합금의 결정성장

Seoung-Yil Baeck*, Jong-Cheol Choi*, Hyun-Jin Shin**, Chun-Pyo Hong**

*Ajou Univ., **Yonsei Univ.

Abstract

Directional solidification of Al-Ti peritetic alloys was carried out using Upward Continuous Casting Process. The morphology of a solid-liquid interface and solidification microstructures were investigated under various crystal growing conditions. The experimental results were compared with those attained by the Bridgman method. The cell spacing of the Al-Ti peritetic alloys and the primary dendrite arm spacing of the Al-Ti peritetic alloys decreased with an increase in pulling speed. The primary β phase of the Al-Cr and Al-Ti peritectic alloys did not appear in solidification microstructures because of the depleted solute contents in the melt ahead of the solid-liquid interface.

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