Microstructure and some magnetic characteristics of amorphous and nanocrystalline Fe83−xCoxNb3B13Cu1 (x=0 or 41.5) alloys

Abstract It has been found that the replacement of 50% of Fe atoms by Co atoms in the Fe 83 Nb 3 B 13 Cu 1 amorphous alloy enhances the saturation magnetization. The presence of α-FeCo grains in the nanocrystalline Fe 41.5 Co 41.5 Nb 3 B 13 Cu 1 alloy leads to higher magnetic susceptibility and saturation magnetization at elevated temperatures in comparison with the Fe 83 Nb 3 B 13 Cu 1 one.