| abstract |
Formula (Fe (1- (α + β)) X1 α X2 β ) (1- (a + b + c + d + e + f + g)) M a B b P c Si d C e S f Ti g A soft magnetic alloy powder comprising a plurality of soft magnetic alloy particles composed of a soft magnetic alloy represented by X1, wherein X1 is Co and / or Ni, and X2 is Al, Mn, Ag, Zn, Sn, As, Sb, Cu, Cr, At least one selected from Bi, N, O and rare earth elements, M is at least one selected from Nb, Hf, Zr, Ta, Mo, W and V, 0.020 ≦ a ≦ 0.14, 0.020 <b ≦ 0.20, 0 <c≤0.15, 0≤d≤0.060, 0≤e≤0.040, 0≤f≤0.010, 0≤g≤0.0010, α≥0, β≥0, 0≤α + β≤0.50, f and g At least one of the values is greater than zero, and the soft magnetic alloy has a nano heterostructure in which initial microcrystals are present in the amorphous phase, and the surface of the soft magnetic alloy particles includes a compound of at least one element selected from P, Si, Bi, and Zn. It is a soft magnetic alloy powder characterized by being covered by the coating | coated part. |