低频脉冲磁场处理Fe73.5Cu1Nb3Si13.5B9非晶合金的磁致伸缩

摘要

The Fe73.5Cu1Nb3Si13.5B9 amorphous alloy sample with low frequency pulse magnetic field is treated.The structure of samples after treatment by TEM is analysed, measured the magnetostriction coefficient of samples with our hand-made instruments before and after treatment. The results show that nano-crystalline occurred in amorphous alloy Fe73.5Cu1 Nb3Si13.5B9 after treatment at low frequency pulse magnetic field, the sample's magnetostriction coefficient after treatment is smaller than before, the soft magnetic properties of amorphous alloy is improved greatly.%用低频脉冲磁场处理Fe73.5Cu1Nb3Si13.5B9非晶合金试样.用透射电镜分析处理后样品的结构,用自制磁致伸缩测量仪测定处理前后样品的磁致伸缩系数.结果表明,低频脉冲磁场处理后的非晶合金Fe73.5Cu1Nb3Si13.5B9发生了纳米晶化,处理后非晶合金的磁致伸缩系数比原始样品减小很多,使非晶合金的软磁性能得到改善.