Metal treatment – Process of modifying or maintaining internal physical... – Magnetic materials
Patent
1988-04-14
1989-05-30
Sheehan, John P.
Metal treatment
Process of modifying or maintaining internal physical...
Magnetic materials
148312, H01F 100
Patent
active
048348139
ABSTRACT:
A wear-resistant alloy of high permeability having an effective permeabil of at least about 3,000 at 1 KHz, a saturation magnetic flux density of at least about 4,000 G, and a recrystallization texture of {110}<112>+{311}<112> is provided. The alloy is produced by cold working a forged or hot worked ingot of an alloy of a desired composition at a cold working ratio of at least about 50%, heating the cold worked alloy at a temperature which is below the m.p. of the alloy and not less than about 900.degree. C. and cooling the heated alloy from a temperature which is not less than an order-disorder transformation point (about 600.degree. C.) of the alloy. Alternatively, the alloy is produced by reheating the cooled alloy to a temperature which is not over than the order-disorder transformation point, and cooling the reheated alloy.
REFERENCES:
patent: 3743550 (1973-07-01), Masumoto et al.
patent: 3837933 (1974-09-01), Masumoto et al.
patent: 3871927 (1975-03-01), Masumoto et al.
patent: 4440720 (1984-04-01), Masumoto et al.
patent: 4572750 (1986-02-01), Masumoto et al.
Masumoto Hakaru
Murakami Yuetsu
Sheehan John P.
The Foundation: The Research Institute of Electric and Magnetic
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