Iron-based nanocrystalline alloy and preparation method and application thereof

The invention belongs to the technical field of nanocrystalline alloys, and particularly relates to an iron-based nanocrystalline alloy and a preparation method and application thereof. The invention provides an iron-based nanocrystalline alloy. The component expression of the alloy is Fe < a > Si < b > Cr < c > Cu < d > Al < e > Ni < f >, wherein a, b, c, d, e and f respectively represent the atom percentage content of each corresponding component, 75 < = a < = 85.5, 1 < = b < = 3, 0.1 < = c < = 0.5, 3 < = d < = 8, 1 < = e < = 1.5, and f = 100-a-b-c-d-e. According to the iron-based nanocrystalline alloy provided by the invention, the original properties of the iron-based nanocrystalline alloy, namely high magnetic flux density, high magnetic conductivity and low coercive force, can be maintained without adding precious metal raw materials such as Nb and Mo. 本发明属于纳米晶合金技术领域，具体涉及一种铁基纳米晶合金及其制备方法和应用。本发明提供了一种铁基纳米晶合金，所述合金的成分表达式为FeaSibCrcCudAleNif；其中，a、b、c、d、e和f分别表示各对应组元的原子百分含量，且75≤a≤85.5，1≤b≤3，0.1≤c≤0.5，3≤d≤8，1≤e≤1