Tungsten nickel iron alloys

Details Tungsten nickel iron alloys Tungsten nickel iron alloys

1989-01-03

1992-09-08

Hunt, Brooks H.

Specialized metallurgical processes, compositions for use therei

Compositions

Consolidated metal powder compositions

419 28, 419 29, 419 47, 419 54, 419 55, C22C 2704, B22F 324, B22F 316, C21D 806

Patent

active

051455129

ABSTRACT:
A consolidated tungsten alloy body consisting essentially of from about 88% to about 98% by weight of tungsten, balance, nickel and iron, produced by liquid phase sintering, containing a continuous phase of a tungsten, nickel and iron alloy and a discontinuous phase of elongated grains of tungsten having an aspect ratio of at least 4:1 relatively uniformly distributed throughout the continuous phase and wherein said body has a recrystallization temperature of from about 1000.degree. C. to about 1200.degree. C. A process for producing the consolidated bodies comprises working and annealing at controlled temperatures to achieve the desired properties. The working temperatures are from about 700.degree. C. to about 900.degree. C. and the annealing temperature is preferably 1200.degree. C.

REFERENCES:
patent: 4749410 (1988-06-01), Mullendore et al.

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