High strength powder metal parts

Details High strength powder metal parts High strength powder metal parts

1985-10-22

1986-09-30

Lechert, Jr., Stephen J.

Specialized metallurgical processes, compositions for use therei

Compositions

Consolidated metal powder compositions

75231, 419 25, 419 26, 419 30, 419 36, 419 37, 419 38, 419 39, 419 58, 420 96, 420119, C22C 2900

Patent

active

046145443

ABSTRACT:
A high strength powder metal part formed from an alloy of iron, nickel, molybdenum and carbon and having an ultimate tensile strength of at least 175,000 pounds per square inch. The powder metal part is made by mixing the alloy with a lubricant, forming the mixture into the desired part shape, sintering in a dissociated ammonia atmosphere, and cryogenically cooling the sintered part.

REFERENCES:
patent: 4090874 (1978-05-01), Kaufman
patent: 4129443 (1978-12-01), Kaufman

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