| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an Fe-based soft magnetic alloy used for various transformers, various choke coils, noise countermeasures, source parts, laser sources, pulse power magnetic parts for accelerators, various motors, various generators, magnetic shields, antennas, sensors or the like, to provide an amorphous alloy strip for producing the same, and to provide magnetic parts using the magnetic alloy. <P>SOLUTION: The Fe-based soft magnetic alloy is characterized in that: a Cu content x satisfies, by atomic%, 0.1≤x≤3; and a B content y satisfies 10≤y≤20; and consisting of the balance Fe with impurities; and including, as the impurities, ≤0.01% Al, 0.001 to 0.05% S, 0.01 to 0.5% Mn, 0.001 to 0.1% N and ≤0.1% O; and in which at least a part of the structure is composed of a crystal phase with a crystal grain size of ≤60 nm (excluding zero). <P>COPYRIGHT: (C)2009,JPO&INPIT |
