软磁合金粉末粉末化学成分(重量%)FeSiAlNiCOFe-Si余4-7--≦1.0≦0.02≦0.025Fe-Si-Cr余3-5Cr3-8--≦0.02≦0.025Fe-Si-Al余9.55.5--≦0.02≦0.025Fe-Ni余≦1.0--35-60≦0.02≦0.025Fe-Ni-Mo余≦1.0Mo2-570-85≦0.02≦0.025)