Fe/Co比对FeCoBSiNb系大块非晶合金晶化行为的影响

稀有金属材料与工程, 2011, 40(9): 1625-1628.

Fe/Co比对FeCoBSiNb系大块非晶合金晶化行为的影响

陶平均 ^1, , 杨元政 ^2, , 董振江 ^3, , 任燕萍 ^4,

1.广东工业大学,广东广州510006

2.广东工业大学,广东广州510006

3.广东工业大学,广东广州510006

4.广东工业大学,广东广州510006

关键词： FeCoBSiNb系大块非晶合金 , 晶化激活能 , 晶化行为

Effects of Fe/Co Ratio on the Crystallization Behavior in FeCoBSiNb Bulk Amorphous Alloys

采用Kissinger、Ozawa和MKN法研究Fe/Co比例变化对(FexCo1-x)72B19.2Si4.8Nb4系大块非晶合金晶化行为的影响.结果表明,当x在0.3～0.7之间变化时,所制备的直径为2 mm的(FexCo1-x)72B19.2Si4.8Nb4系合金棒为完全非晶结构；玻璃转变温度Tg、晶化温度Tx及晶化峰值温度Tp随加热速率的增大均向高温区移动；用Kissinger法、Ozawa法和MKN 法测定的非晶合金激活能结果非常接近,其中Kissinger法和MKN法测得的结果稍大,且都呈现出Ex＞ Ep＞Eg的规律性；随着Fe含量的增加,晶化激活能Ex先增大后减小,而阶段晶化激活能Eo最大值呈下降趋势.

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材料期刊网

Fe/Co比对FeCoBSiNb系大块非晶合金晶化行为的影响

Effects of Fe/Co Ratio on the Crystallization Behavior in FeCoBSiNb Bulk Amorphous Alloys

参考文献