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采用成分为Fe73.5Cu1Nb3Si15.5B7(at%)和Fe74-xNixCu1Nb3Si15B7(x=1,3)、Fe76-xNixCu1Nb3Si11B9(x=5、7、10、15)的非晶合金带材卷绕成环形铁芯,分别进行普通热处理和磁场热处理后检测铁芯磁性能。结果表明,随合金中Ni含量的增加,铁芯磁导率明显降低,可达到1.2k;交流损耗值比Fe73.5Cu1Nb3Si15.5B7合金铁芯降低了一个数量级;添加Ni元素后,铁芯抗直流性能明显改善,这是由于合金的磁畴结构发生了细化,感生磁各向异性增强而引起的。
The amorphous alloy strip with Fe73.5Cu1Nb3Si15.5B7 (at%) and Fe74-xNixCu1Nb3Si15B7 (x = 1,3) and Fe76-xNixCu1Nb3Si11B9 (x = 5,7,10,15) , Respectively, after ordinary heat treatment and magnetic field heat treatment to detect core magnetic properties. The results show that with the increase of Ni content in the alloy, the magnetic permeability of the core decreases obviously, reaching 1.2k. The AC loss value is one order of magnitude lower than that of the Fe73.5Cu1Nb3Si15.5B7 alloy core. After adding Ni element, the core anti-DC The performance is obviously improved, which is caused by the refinement of the magnetic domain structure of the alloy and the enhancement of magnetic anisotropy.