摘要
用真空感应炉在氩气保护下熔炼成母合金,再采用单辊快淬法制备成分为Fe63Co21Si2B14的非晶合金薄带,卷绕成铁芯后在不同温度下进行横向磁场热处理。研究了磁场热处理对合金磁性能的影响。结果表明,该Fe基非晶合金对磁场热处理非常敏感,通过简单的横向磁场热处理,合金可以获得良好的恒导磁性能,其Bs值可达1.73T。合金在360℃处理时,恒导磁范围达到240A/m,恒磁导率约为2600,并且具有良好的综合磁特性。在晶化温度以下,提高热处理温度有利于提高材料的恒导磁性能。
Using vacuum induction furnace to prepare Fe63Co21Si2B14 master alloy, from which rapidly quenched ribbon was prepared by single-roller method. The amorphous ribbons were wound into magnetic cores and then were heat treated under transverse magnetic field at different temperatures. The effects of transverse magnetic heat treatment on the magnetic properties of Fe-based amorphous alloy with high saturation magnetic induction were investigated. The results showed that the iron-based amorphous alloy is very sensitive to the magnetic heat treatment. The alloy can obtain constant permeability properties through a simple transverse magnetic field heat treatment. The amorphous alloy Fe63Co21Si2B14 with saturation magnetic induction of 1.73T exhibits good magnetic characteristics after heat treatment at 360℃. The field range of constant permeability and the constant permeability were 240 A/m and 2600, respectively. Increasing the heat treatment temperature is of benefit to improving the constant permeable properties of the materials under the crystallizing temperature.
出处
《磁性材料及器件》
CSCD
北大核心
2009年第3期38-40,45,共4页
Journal of Magnetic Materials and Devices
基金
国防科技预研资助项目(05020640B)