FE-base soft magnetic alloy and laminated magnetic core by using

Details FE-base soft magnetic alloy and laminated magnetic core by using FE-base soft magnetic alloy and laminated magnetic core by using

1996-11-29

1999-08-10

Sheehan, John

Metal treatment

Process of modifying or maintaining internal physical...

Magnetic materials

29605, H01F 1147

Patent

active

059353473

ABSTRACT:
The present invention provides an Fe-base soft magnetic alloy and a laminated magnetic core formed by using the alloy which contains Fe as a main component and at least one element M and B selected from the group consisting of Ti, Zr, Hf, V, Nb, Ta, Mo and W, in which at least 50% of the crystalline structure comprises fine crystalline grains having an average crystal grain size of 30 nm or less and a body-centered cubic structure, and the fracture strain at 300.degree. C. or less is 1. The ratios of the components Fe, and elements M and B are 75 to 93 atomic %, 4 to 9 atomic % and 0.5 to 18 atomic %, respectively. The alloy may contain other additive elements such as Cr, Ru, Hr, Ir, Si, Al, Ge, Ga and the like.

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