SOFT MAGNETIC ALLOY AND MAGNETIC COMPONENT

Title:

SOFT MAGNETIC ALLOY AND MAGNETIC COMPONENT

Document Type and Number:

WIPO Patent Application WO/2022/070499

Kind Code:

A1

Abstract:

Provided are: a soft magnetic alloy having both of a high saturation magnetic flux density Bs and high corrosion resistance simultaneously; and others.　The soft magnetic alloy comprises a component represented by the compositional formula: ((Fe(1-(α+β)CoαNiβ)1-γX1γ)(1-(a+b+c+d+e))BaPbSicCdCre (atom number ratio) and Mn, in which X1 represents at least one element selected from Ti, Zr, Hf, Nb, Ta, Mo, W, Al, Ga, Ag, Zn, S, Ca, Mg, V, Sn, As, Sb, Bi, N, O, Au, Cu, a rare earth element and a platinum-group element, each of a to e and α to γ falls within a specified range, 0.002 ≦ f < 3.0 is satisfied in which f (at%) represents the content of Mn, the corrosion potential is -630 to -50 mV inclusive, and the corrosion current density is 0.3 μA/cm2 to 45 μA/cm2 inclusive.

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Inventors:

YOSHIDOME KAZUHIRO (JP)
MATSUMOTO HIROYUKI (JP)
HASEGAWA AKITO (JP)
KUMAOKA HIRONOBU (JP)

Application Number:

PCT/JP2021/018300

Publication Date:

April 07, 2022

Filing Date:

May 13, 2021

Export Citation:

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Assignee:

TDK CORP (JP)

International Classes:

C22C38/00; C22C45/02; H01F1/147; H01F1/153

Domestic Patent References:

WO2008114611A1

2008-09-25

Foreign References:

JP2018083984A	2018-05-31
JP2018123424A	2018-08-09
JP2012012699A	2012-01-19
JPH0790515A	1995-04-04
JP2010212442A	2010-09-24

Attorney, Agent or Firm:

MAEDA & SUZUKI (JP)

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