Title: Nickel-iron material having high magnetic permeability

Abstract: A material having a high magnetic permeability made by a base composition consisting essentially of, by weight, 75-82 percent of nickel and 5-24 percent of iron, with or without 2-6 percent of molybdenum, 1 or less percent of manganese, 1 or less percent of silicon, and by an additive mixture consisting of at least two different types of elements, one of which types of elements being at least one element selected from the group of elements consisting of titanium, zirconium, vanadium, niobium, chromium and tungsten, and the other being aluminum, said additive being contained in said base composition in an amount that the total content of said at least two different types of elements falls within the range of 1-8 percent of the whole weight of said material. This material exhibits a high mechanical strength, and toughness, a high resistance to wear from friction and a high magnetic permeability.

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Inventors: Yamagishi, Tomoo (Hamamatsu, JA)

Application Number: 588891
Filing Date: 1975-06-20
Publication_date: 1976-11-02
Assignee: Nippon Gakki Seizo Kabushiki Kaisha (JA)
Primary Class(es): 148/312 148/120, 148/121, 148/426, 148/427, 148/428
Other Classes:
US Patent Ref:

1768237	Jun, 1930	Elmen	75/170.
1910309	May, 1933	Smith et al.	75/170.
2002689	May, 1935	Bozorth et al.	148/31.
3021211	Feb, 1962	Flinn	75/170.
3794530	Feb, 1974	Masumoto et al.	148/31.

Other Refs: 278,454

Oct, 1927	UK

Primary Examiner: Satterfield, Walter R.
Assistant Examiner:
Attorney: Cushman, Darby & Cushman