本发明涉及一种铁基纳米晶软磁合金材料，其特征在于合金组成满足分子式Fe_aCo_bNi_cZr_dB_eCu_f，式中下标a、b、c、d、e、f分别表示对应合金元素的原子百分比，并且满足以下条件：44≤a≤88，0≤b≤44，0≤c≤44，5≤d≤10，1≤e≤5，0.5≤f≤1.5，a+b+c+d+e+f＝100。所述合金材料由非晶基体和平均晶粒尺寸约10nm的体心立方α‐(Fe,Co,Ni)纳米晶粒相组成。与现有技术相比，本发明的优点在于该纳米晶合金兼具高饱和磁感应强度、高居里温度以及低的损耗，且降低了原材料成本，因此在高温环境下具有良好的应用前景。

The invention relates to an iron-based nanocrystalline soft magnetic alloy material, which is characterized in that the alloy composition satisfies the molecular formula Fe_aCo_bNi_cZr_dB_eCu_f, where the subscripts a, b, c, d, e, and f respectively represent the atomic percentages of the corresponding alloy elements, and satisfy the following conditions: 44≤a≤88, 0≤b≤44, 0≤c≤44, 5≤d≤10, 1≤e≤5, 0.5≤f≤1.5, a+b+c+d+e+f= 100. The alloy material is composed of an amorphous matrix and a body-centered cubic α-(Fe, Co, Ni) nanocrystalline phase with an average grain size of about 10 nm. Compared with the current technology, the advantage of the present invention is that the nanocrystalline alloy has high saturation magnetic induction, high curie temperature and low loss, and reduces the cost of raw materials, so it has a good application prospect in high temperature environment.