What are the uses of amorphous metal materials

May 09, 2024

The most widely used amorphous metals are amorphous soft magnetic alloys, such as iron base, cobalt base, iron nickel base and iron cobalt nickel base alloys. Fe-based amorphous alloys, such as Fe-Si alloy, have the advantages of high saturation magnetic flux density, low iron loss, low density and low cost, and are ideal core materials for manufacturing aviation transformers. Ferrosilicon-boron alloy has high resistance and very low iron loss, easy to form a low remanence state, and its pulse magnetic properties are significantly better than crystalline silicon steel and permalloy, which is the core material for manufacturing pulse transformers. Fe-based amorphous alloy also has high magnetostrictive effect and high resistivity, and its amorphous bands are conducive to making fast response sensors, so it is a new type of sensor material. Cobalt-based amorphous alloy has high magnetic flux density and permeability, good thermal stability, and high wear resistance and corrosion resistance, so it is a kind of excellent magnetic head material. Because it has no grain boundary, the magnetic head made of it can avoid the tip falling off, the friction noise between the magnetic head and the tape is smaller than the general magnetic head, the sound effect is good, and the service life is long.