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

金属学报(英文版), 1989, 2(7): 68-71.

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

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

Keywords： Fe-base amorphous alloy , null , null

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.

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

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