A Study on the Crystallization Behavior of Al85Ce5Ni10 Amorphous Ribbon

Al85Ce5Ni10 비정질 리본의 결정화 거동에 관한 연구

  • Moon, J.T. (Department of Metallurgical Eng. & Materials Science, Hong Ik University) ;
  • Jo, W.M. (Department of Metallurgical Eng. & Materials Science, Hong Ik University) ;
  • Shin, B.M. (Department of Metallurgical Eng. Dae Jon National Univ. of Technology) ;
  • Lee, Y.H. (Department of Metallurgical Eng. & Materials Science, Hong Ik University)
  • 문종태 (홍익대학교 공과대학 재료.금속공학과) ;
  • 조우민 (홍익대학교 공과대학 재료.금속공학과) ;
  • 신봉문 (대전산업대학교 금속공학과) ;
  • 이용호 (홍익대학교 공과대학 재료.금속공학과)
  • Published : 1995.09.30

Abstract

Since amorphous alloys have been known to have better mechanical and chemical properties than crystalline alloys of the same composition, a great number of studies on the formation of Al-based amorphous alloys have been carried out actively. However, little has been obtained about the effect of Rare-Earth metal and Transition metal addition on amorphous phase formed by melt spinning method. This study included fabrication of amorphous alloy $Al_{85}Ce_5Ni_{10}$ by melt spinning methods and DTA, XRD, TEM analysis to determine crystalization behavoir. Annealing treatments were carried out in Ar atmosphere under isothermal and nonisothermal conditions. The diffraction pattern of non-heated ribbons showed broad form characteristic of glass metallic alloy. The crystallization of amorphous $Al_{85}Ce_5Ni_{10}$ takes place eutedtoidly by homogeneous formation of Al and MS-1, followed by precipitation of the $Al_{11}Ce_3$ and later $MS-1{\rightarrow}Al_3Ni$ transformation.

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