Heavy tungsten-nickel-iron alloys with very high mechanical char

Details Heavy tungsten-nickel-iron alloys with very high mechanical char Heavy tungsten-nickel-iron alloys with very high mechanical char

1988-10-05

1990-07-03

Lechert, Jr., Stephen J.

Specialized metallurgical processes, compositions for use therei

Compositions

Consolidated metal powder compositions

419 23, 419 28, 419 29, 419 38, 419 54, 419 55, 419 60, C32C 2800

Patent

active

049387995

ABSTRACT:
The invention relates to heavy tungsten-nickel-iron alloys with high mechanical characteristics and a specific gravity between 15.6 and 18. The alloys include a tungsten .alpha.-phase in the shape of butterfly wings with dislocation cells of dimensions between 0.1 and 1 .mu.m, and a nickel-iron bonding .gamma.-phase having a mean free path of less than 15 .mu.m and an Ni/Fe ratio greater than or equal to 2.

REFERENCES:
patent: 3888636 (1975-06-01), Sczerzenie et al.
patent: 3988118 (1976-10-01), Grierson et al.
patent: 4090875 (1978-05-01), Ludwig
patent: 4762559 (1988-09-01), Penrice et al.

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