Fe-base soft magnetic alloy and method of producing same

Details Fe-base soft magnetic alloy and method of producing same Fe-base soft magnetic alloy and method of producing same

H - Electricity

01

F

148/4, 75/1.2

H01F 1/147 (2006.01) C21D 1/04 (2006.01) C22C 45/02 (2006.01) H01F 1/153 (2006.01)

Patent

CA 1323219

ABSTRACT OF THE DISCLOSURE An Fe-base soft magnetic alloy having the composition represented by the general formula: (Fe1-aMa)100-x-y-z-.alpha.-.beta.-.gamma.CuxSiyBzM'.alpha.M".beta.X.gamma. wherein M is Co and/or Ni, M' is at least one element selected from the group consisting of Nb, W, Ta, Zr, Hf, Ti and Mo, M" is at least one element selected from the group consisting of V, Cr, Mn, A?, elements in the platinum group, Sc, Y, rare earth elements, Au, Zn, Sn and Re, X is at least one element selected from the group consisting of C, Ge, P, Ga, Sb, In, Be and As, and a, x, y, z, .alpha., .beta. and .gamma. respectively satisfy 0?a?0.5, 0.1?x?3, 0?y?30, 0?z?25, 5?y+z?30, 0.1?.alpha.?30, .beta.?10 and .gamma.?10, at least 50% of the alloy structure being fine crystalline particles having an average particle size of 1000.ANG. or less. This alloy has low core loss, time variation of core loss, high permeability and low magnetostriction.

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