Zr57Cu15.4Ni12.6Al10Nb5块体非晶合金晶化行为研究Study on Behavior of Crystallization of Zr57Cu15.4Ni12.6Al10Nb5 Bulk Amorphous Alloy
杨元政,仇在宏,李喜峰,赵德强,谢致薇,匡同春,白晓军
摘要(Abstract)：
用示差扫描量热仪(DSC)研究了Zr57Cu15.4Ni12.6Al10Nb5块体非晶合金的匀速升温晶化与等温晶化的晶化行为。在匀速升温晶化方式下,用Kissinger法与Ozawa法获得了块体非晶合金的激活能,对第一晶化峰分别为320.5kJmol和316.6kJmol,对第二晶化峰分别为324.5kJmol和320.5kJmol。该非晶合金的晶化表现出明显的动力学效应。在等温晶化方式下,用JohnsonMehlAvrami方程获得了晶化的Avrami指数为1.61,表明非晶合金的晶化受原子扩散控制。
关键词(KeyWords)： ZrCuNiAlNb块体非晶合金;晶化;激活能;晶化指数
基金项目(Foundation): 国家自然科学基金项目(50371020);; 广东省科技计划项目(2003B12106);; 广东省自然科学基金项目(20010056)
作者(Author): 杨元政,仇在宏,李喜峰,赵德强,谢致薇,匡同春,白晓军
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