Precipitation hardenable copper alloy and process

Details Precipitation hardenable copper alloy and process Precipitation hardenable copper alloy and process

1983-02-18

1984-02-28

Skiff, Peter K.

Metal treatment

Compositions

Heat treating

420486, C22C 901, C22C 906, C22F 108

Patent

active

044340168

ABSTRACT:
An improved copper base alloy for use in electrical springs and a process of treating the alloy provide improved resistance to stress relaxation when the alloy is in a solution treated and aged condition having a discontinuous precipitate. The alloy consists essentially of from about 10% to about 15% nickel, from about 1% to about 3% aluminum, up to about 1% manganese, from about 0.05% to less than about 0.5% magnesium and the balance copper. The alloy is readily hot workable if held within a critical temperature range of from about 880.degree. C. to about 980.degree. C. prior to hot working.

REFERENCES:
patent: 1906567 (1933-05-01), Fritschle
patent: 2061897 (1936-11-01), Crampton et al.
patent: 2074604 (1937-03-01), Bolton et al.
patent: 2101930 (1937-12-01), Davis et al.
patent: 2144279 (1939-01-01), Whitman
patent: 2236975 (1941-04-01), Muller et al.
patent: 2430419 (1947-11-01), Edens
patent: 2458688 (1949-01-01), Davis
patent: 2772963 (1956-12-01), Pease et al.
patent: 2851353 (1958-09-01), Roach et al.
patent: 3769005 (1973-10-01), Richardson et al.
patent: 3772092 (1973-11-01), Shapiro et al.
patent: 3772093 (1973-11-01), Shapiro et al.
patent: 3772094 (1973-11-01), Shapiro et al.
patent: 3772095 (1973-11-01), Shapiro et al.
patent: 3824135 (1974-07-01), Pryor et al.
patent: 4016010 (1977-04-01), Caron et al.
patent: 4052204 (1977-10-01), Plewes
patent: 4073667 (1978-02-01), Caron et al.
patent: 4090890 (1978-05-01), Plewes
patent: 4233068 (1980-11-01), Smith, Jr. et al.
patent: 4233069 (1980-11-01), Smith, Jr. et al.
"Copper Rich Ni-Al-Cu Alloys", Part 1, The Effect of Heat Treatment on Hardness and Electrical Resistivity, by W. O. Alexander and D. Hanson, J. Inst. of Metals 61 (1937) 83.
"Copper Rich Ni-Al-Cu Alloys", Part 2, The Constitution of the Cu-Ni Rich Alloys, by W. O. Alexander.
Ibid, 63 (1938) 163.
"Copper Rich Ni-Al-Cu Alloy", Part 3, The Effect of Heat Treatment on Microstructure, by W. O. Alexander.
Ibid, 64 (1939) 217.

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