Fe-Si-B rapid solidification alloy and its manufacturing method

摘要

BS ≧ 1.7 T and thickness μ A Fe-Si-B rapid solidification alloy capable of lamination core with high BS of M is provided.Solution: the composition t100-x-y-zsix (B1 MCM) ypz in the Fe-Si-B rapid solidification alloy (t is represented by a transition metal element containing at least one element selected from the group consisting of Fe, Co, and Ni, and the Fe is a transition metal element containing Fe), and the composition ratios x, y, Z and m have a composition that satisfies 1.0 ≦ x ≦ 4.5 atomic%, 11.0 ≦ y ≦ 14.0 atoms, 0.0 ≦ Z ≦ 2.0 atomic%, 0.0 ≦ m ≦ 0.3, and thickness is μ More than μ It is characterized by less than m.Diagram