Compositions of Iron-base Amorphous Alloys with High Saturation Induction Density

In order to enhance the saturation induction density (Bs) of FeCoSiB amorphous alloys,effect of the composition on Bs was investigated through adjusting the contents of Fe,Co,Si and B.The optimal composition of the alloy was obtained.The results show that the amorphous alloys exhibite high saturation induction density (Bs) when the ration of Fe to Co contents is to 3~4 and Si and B contents are 5at% and 16at% or 1at% and 14at%,respectively.Under the present conditicons,the maximum Bs of 69%Fe-18%Co-1%Si-12%B alloy is 1.76T.