采用示差热分析(DSC)研究了旋铸急冷法在大气环境中制备出的Co68.5Fe4Si10B17.5非晶合金的非等温晶化的动力学行为. 研究发现: 在连续加热条件下, 随升温速率的加快, 合金的特征温度Tg, Tx, Tp均向高温区移动. 当分别采用晶化开始温度和峰值温度时, 所得非晶合金的激活能并不是稳定值. 用Doyle-Ozawa方法计算出的激活能值比Kissinger法计算出的激活能值要大. 非晶态Co68.5Fe4Si10B17.5合金的晶化百分比与退火温度和退火时间的关系曲线均呈S型. 随加热速度的增加, 非晶合金的晶化百分比与温度的关系曲线向高温处移动.
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