Patent ID: 11881338
Assignee: TDK CORPORATION
Field: Materials, metallurgy (Chemistry)
Classification: CPC H  C | IPC C  H

Claim 0:
1. A soft magnetic alloy comprising
an internal area having a soft magnetic type alloy composition including Fe and Co,
a Co concentrated area existing closer to a surface side than the internal area and having a higher Co concentration than in the internal area,
a SB concentrated area existing closer to the surface side than the Co concentrated area and having a higher concentration of at least one element selected from Si and B than in the internal area, and
a Fe concentrated area including Fe existing closer to the surface side than the SB concentrated area; wherein
a crystalized area ratio of the SB concentrated area represented by SSBcry/SSB and a crystalized area ratio of the Fe concentrated area represented by SFecry/SFe satisfy a relation of (SSBcry/SSB)<(SFecry/SFe).