Fe-based amorphous alloys have excellent soft magnetic properties. Adding B elements has important significance to Fe-based amorphous alloys. The results show that with B content increasing, the amorphous forming ability and thermal stability of Fe_(80)Si_(8.5)B_xP_(9.5-x)Cu_2(x=0,1,3,6,8) alloy increase. Also its soft magnetic property improves, when the value of x is 8, the saturation magnetization (M_s) reaches 234.94 ...