非晶Fe85.9Nb0.25Nd7.5B5.5Dy0.75 Cu0.1合金中αFe相的晶化动力学

物理测试, 2008, 26(3): 30-0.

非晶Fe85.9Nb0.25Nd7.5B5.5Dy0.75 Cu0.1合金中αFe相的晶化动力学

1.1. 秦皇岛职业技术学院机电系, 河北秦皇岛 066100

2. 2. 河北能源职业技术学院机电工程系, 河北唐山063004

1.1. Department of Electromechanical Engineering, Qinhuangdao Vocational Technological College, Qinhuangdao 066100, Hebei, China

2. 2. Department of Electromechanical Engineering, Hebei Energy Institute of Vocation and Technology, Tangshan 063004, Hebei, China

关键词：非晶合金 , αFe phase , crystallization kinetics

Crystallization Kinetics of αFe Phase in Fe85.9Nb0.25Nd7.5B5.5Dy0.75 Cu0.1 Amorphous Alloy

XIAO Xinping , WANG Yanan

Keywords： amorphous alloy , αFe相 , 晶化动力学

利用差示扫描热分析法(DSC)研究了非晶Fe85.9Nb0.25Nd7.5B5.5Dy0.75 Cu0.1合金中αFe相的晶化动力学。结果表明：当非晶合金以10 ℃/min升温时，αFe相的晶化开始温度和结束温度分别为52143 ℃和61214 ℃，晶化时间为907 min。晶化激活能和Avrami指数n随其晶化体积分数的增加而逐渐减小。

The crystallization kinetics of αFe phase in the Fe85.9Nb0.25 Nd7.5B5.5 Dy0.75Cu0.1 amorphous alloy was studied by diferential scanning calorimetry(DSC). The results show that when the amorphous alloy is heated at a rate of 10 ℃/min, the beginning and ending temperature of crystallization for αFe phase is 52143 ℃ and 61214 ℃, respectively, and the time of crystallization is 9.07 min. The crystallization activation energy and Avrami exponent n of αFe decrease with increasing in crystallized volume fraction.

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