Fe-based alloy composition, soft magnetic material, magnetic members, electric/electronic component, and device
AssigneeAlps Alpine Co., Ltd.
InventorsHisato Koshiba, Takao Mizushima, Takafumi Hibino, Teruo Bitoh
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Abstract
Provided is an Fe-based alloy composition capable of forming an amorphous soft magnetic material which contains no P and which has a glass transition temperature Tg, the Fe-based alloy composition having a composition represented by the formula (Fe1−aTa)100at %−(x+b+c+d)MxBbCcSid, where T is an arbitrary added element such as Ni and M is an arbitrary added element such as Cr, the formula satisfying the following conditions: 0≤a≤0.3, 11.0 at %≤b≤18.20 at %, 6.00 at %≤c≤17 at %, 0 at %≤d≤10 at %, and 0 at %≤x≤4 at %.
Claims14
An Fe-based alloy composition capable of forming a soft magnetic material which contains an amorphous phase having a glass transition temperature Tg, the Fe-based alloy composition having a composition represented by the formula (Fe1-aTa)100at %-(x+b+c+d)MxBbCcSid, where T is an optional additive which is at least one element selected from the group consisting of Co and Ni, and M is an optional additive which is Cr,
- wherein the formula satisfies:
- a first set of conditions including 0≤a≤0.3, 11.0 at %≤b≤18.20 at %, 6.00 at %≤c≤17 at %, 0 at %≤d≤10 at %, 0.5 at %≤x≤4 at %, and 0.25≤R≤0.333, where R=(b+c)/[(1−a)×{100 at %−(x+b+c+d)}].
Dependencies are inferred from the claim text.