Tungsten-nickel-cobalt alloy and method of producing same

Details Tungsten-nickel-cobalt alloy and method of producing same Tungsten-nickel-cobalt alloy and method of producing same

1975-07-07

1977-03-15

Schafer, Richard E.

Specialized metallurgical processes, compositions for use therei

Compositions

Consolidated metal powder compositions

75200, 75221, 75224, 75227, 29182, C22C 104, B22F 316

Patent

active

040122301

ABSTRACT:
An improved tungsten alloy having a tungsten content of approximately 95 weight percent, a nickel content of about 3 weight percent, and the balance being cobalt of about 2 weight percent is described. A method for producing said tungsten-nickel-cobalt alloy is further described and comprises (a) coating the tungsten particles with a nickel-cobalt alloy, (b) pressing the coated particles into a compact shape, (c) heating said compact in hydrogen to a temperature in the range of 1400.degree. C and holding at this elevated temperature for a period of about 2 hours, (d) increasing this elevated temperature to about 1500.degree. C and holding for 1 hour at this temperature, (e) cooling to about 1200.degree. C and replacing the hydrogen atmosphere with an inert argon atmosphere while maintaining this elevated temperature for a period of about 1/2 hour, and (f) cooling the resulting alloy to room temperature in this argon atmosphere.

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Kabayama, Sukeaki et al. Chem. Abs. 73:71322z [Japan patent 70-14,658] 1970.

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