INFLECTION OF COERCIVITY DURING LOCAL CRYSTALLIZATION OF Fe-Si-B AMORPHOUS ALLOYS

Abstract

Abstract: An inflection hehaviour was revealed during isothermal annealing under the observation of transition of the coercivity of Fe-Si-B amorphous alloys during local crystallization.It may be interpreted by the transition of α-Fe grain precipitated from single to multiple domain, Thus,the theoretical expression of H_0-t_a may be derived.The plot of expression H_0-t_a calcu- lated well represents the feature of the experimental curve.

Key words: Fe-base amorphous alloy, crystallization, coercivity

YANG Guobin GUAN Zhiqun WANG Shuangquan WANG Run Beijing University of Science and Technology,Beijing,China Professor,Department of Materials Science and Engineering,Beijing Univ.of Science and Technology,Beijing,China. INFLECTION OF COERCIVITY DURING LOCAL CRYSTALLIZATION OF Fe-Si-B AMORPHOUS ALLOYS[J]. Acta Metallurgica Sinica (English Letters), 1989, 2(7): 68-71.

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INFLECTION OF COERCIVITY DURING LOCAL CRYSTALLIZATION OF Fe-Si-B AMORPHOUS ALLOYS

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