以非晶丝的芯 壳 (core shell)结构模型为基础 ,对铁基非晶丝考虑其芯内存在一沿轴向的应力磁各向异性Kc,而壳内是沿径向的应力磁各向异性Ks(Kc 和Ks 均为应力能常量λsσ0 的函数 ) ,导出了样品的交流环向磁导率 μφ(r) .由Maxwell方程和Ohm定律计算出此模型下的低频经典涡流损耗反常因子为 η =2 .2 .理论值与实验结果的比较表明 ,铁基非晶丝的磁结构可以很好地由这一改进的芯 壳结构模型来描述 Based on the core shell structure model of amorphous wire, considering the existence of a stress-magnetic anisotropy Kc in the core of iron-based amorphous wire, The anisotropy Ks (Kc and Ks are both the function of the stress constant λsσ0), and the AC circular permeability μφ (r) of the sample is derived. The low frequency classical eddy current loss anomaly factor under this model is calculated by Maxwell’s equation and Ohm’s law Η = 2 .2 The comparison of theoretical values ​​and experimental results shows that the magnetic structure of Fe-based amorphous wires can be well described by this modified core-shell structure model