Method of making non-retentive Al-Ni-Co-Fe alloy

Details Method of making non-retentive Al-Ni-Co-Fe alloy Method of making non-retentive Al-Ni-Co-Fe alloy

1974-10-11

1977-01-18

Satterfield, Walter R.

Metal treatment

Process of modifying or maintaining internal physical...

Magnetic materials

148 3155, H01F 100

Patent

active

040037690

ABSTRACT:
A method for converting a high magnetic retentivity, high magnetic conductivity aluminum, nickel, cobalt and iron alloy to a substantially magnetically non-retentive alloy comprises heating the alloy to a temperature in the range 1400.degree. - 1500.degree. F. for about 30 minutes and quenching the heated alloy in a room temperature liquid coolant.

REFERENCES:
patent: 1752490 (1930-04-01), Karcher
patent: 1968569 (1934-07-01), Ruder
patent: 2002696 (1935-05-01), Kelsall
patent: 2027994 (1936-01-01), Mishima
patent: 2980563 (1961-04-01), Pavlovic et al.
patent: 3574003 (1971-04-01), Nara et al.
patent: 3783041 (1974-01-01), Tokushima
Lyman, et al. (ed) Metals Handbook, vol. 2, (Heat-Treating), Metals Park, Ohio (ASM) 1964 p. 16.
Duff, A, et al.; Physics, Philadelphia, 1947 pp. 260-262.
Bozorth, R; Ferromagnetism, New York, 1951 pp. 6, 386, 387.

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