| abstract |
Disclosed is an iron-based amorphous alloy Fe a B b Si c RE d , wherein a, b, and c represent, in atomic percentages, the contents of corresponding components, respectively; 83.0 ≤ a ≤ 87.0, 11.0 ＜ b ＜ 15.0, 2.0 ≤ c ≤ 4.0, and a + b + c ＝ 100; and d is the concentration of RE in the iron-based amorphous alloy, i.e. 10 ppm ≤ d ≤ 30 ppm. The iron-based amorphous alloy has a saturation magnetic induction intensity of no less than 1.63 T, and same can be used to manufacture a magnetic core material for power transformers, motors and inverters. |