华中,刘尧棣,于万秋,孙亚明,董丽荣,王立超

• 1:吉林师范大学功能材料物理与化学教育部重点实验室

摘要(Abstract)：

采用单辊快淬法制备Fe79Zr9B12和Fe76Zr9B15非晶合金薄带,并对两合金进行不同温度下热处理。利用差热分析仪(DTA)、X射线衍射仪(XRD)和振动样品磁强计(VSM)研究Fe79Zr9B12合金和Fe76Zr9B15合金的晶化行为和磁性能。结果表明,Fe79Zr9B12合金和Fe76Zr9B15合金的晶化激活能分别为404.42 kJ/mol和370.75 kJ/mol。晶化初期,有α-Mn型相和α-Fe相从Fe79Zr9B12非晶合金基体中析出,Fe23B6型相和α-Fe相从Fe76Zr9B15非晶合金基体中析出。α-Mn型相和Fe23B6型相均为亚稳相,进一步高温热处理后,α-Mn型相转变为α-Fe相,Fe23B6型相转变为α-Fe相、Fe2B相和Fe3B相。Fe79Zr9B12合金的矫顽力(Hc)在600℃退火后突然增大,继续高温退火,Hc下降;Fe76Zr9B15合金的Hc随着退火温度的升高持续增大。两种合金矫顽力随退火温度的变化与退火后合金的微观结构密切相关。

关键词(KeyWords)： 晶化行为;亚稳相;磁性能

Abstract:

Keywords:

基金项目(Foundation): 吉林省科技发展计划资助项目(201105083);; 吉林省教育厅“十二五”科学技术研究项目(2011-158);; 吉林师范大学研究生创新科研计划项目(201103)

作者(Author): 华中,刘尧棣,于万秋,孙亚明,董丽荣,王立超

DOI: 10.13289/j.issn.1009-6264.2012.05.014

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