摘要
利用DSC、XRD和磁芯特性测试仪等研究了分级升温对FeSiCuNbB非晶磁芯晶化过程和性能的影响。研究发现,磁芯的晶化过程包括两个阶段,即α-Fe(Si)固溶体相和Fe3B相的析出,对应的晶化激活能分别为291.16 kJ/mol和430.88 kJ/mol。升温过程对晶化过程和磁芯的性能有很大影响,两级升温促进了样品的晶化,有利于提高样品的磁性能,磁芯经450℃保温30 min和500～510℃保温60 min的处理,性能最佳。
The effects of stepped heating-up on crystallization process and properties of FeSiCuNbB amorphous magnetic cores were studied by DSC, XRD and magnetic core testing instrument. The results show that the crystallization process undergoes two steps, α-Fe （Si） and Fe3B phases, corresponding to crystallization activation energy is up to 291.16 kJ/mol and 430.88 kJ/mol, respectively. The heating-up procedure has great effects on crystallization process and properties. Heating-up with two-step accelerates the crystallization and is helpful to modify properties of the sample. The optimum performance is obtained when the core heated at 450℃ for 30 min and at （5004 510）℃ for 60 min.
出处
《热加工工艺》
CSCD
北大核心
2009年第8期61-63,共3页
Hot Working Technology
基金
上海市教委基金资助项目(06OZ015)
