The iron-based nanocrystalline alloy is an amorphous material formed by a rapid solidification process of an alloy composed mainly of iron and adding a small amount of Nb, Cu, Si, and B elements. After heat treatment, a diameter-based, diffusely distributed amorphous matrix can be obtained, known as microcrystalline, nanocrystalline or nanocrystalline materials.
Iron-based nanocrystalline alloys consist of iron, silicon, boron, and a small amount of copper, molybdenum, niobium, etc., in which copper and niobium are indispensable elements for obtaining the nanocrystalline structure. They are first made into amorphous strips and then passed through Annealing forms a microcrystalline and amorphous hybrid structure. Although this material is cheap, its magnetic properties are excellent and it is almost comparable to the best cobalt-based amorphous alloys in amorphous alloys, but it does not contain expensive cobalt. It is industrial and civilian high-frequency transformers, transformers, and inductors. The ideal material is also a new generation of permalloy and ferrite.