Sintered compact and process for producing same

Details Sintered compact and process for producing same Sintered compact and process for producing same

1986-05-21

1987-09-01

Terapane, John F.

Specialized metallurgical processes, compositions for use therei

Compositions

Consolidated metal powder compositions

75246, 419 47, 420 43, 420 50, 420 64, 420 94, 420 97, 420 98, 420104, 420112, 420117, 420119, 420441, C22C 1905, C22C 3818, C22C 3832, C22C 3854

Patent

active

046907114

ABSTRACT:
A process for preparing an iron group sintered compact involves forming an admixture of an iron group metal alloy powder additive and iron powder wherein the melting point of the alloy additive is at least about 50.degree. C. lower than that of the iron, compacting the admixture to form a green compact, and sintering the green compact at a temperature of from about 20.degree. C. above the solidus to about 100.degree. C. above the liquidus of the alloy additive whereby a sintered compact is formed. A compact having an iron group alloy additive as a continuous phase and iron as a discontinuous phase wherein the continuous phase has a melting point of at least about 50.degree. C. lower than that of the discontinuous phase can be prepared at lower sintering temperatures than a typical iron powder.

REFERENCES:
patent: 3689257 (1972-09-01), Oda et al.
patent: 4011051 (1977-03-01), Helton et al.
patent: 4283225 (1981-08-01), Sexton et al.
patent: 4402742 (1983-09-01), Pattanaik
patent: 4410604 (1983-10-01), Pohlman et al.
patent: 4504312 (1985-03-01), Oaku et al.
patent: 4516716 (1985-05-01), Coad
patent: 4528247 (1985-07-01), Mizuhara
patent: 4540453 (1985-09-01), Boredelon et al.
patent: 4594103 (1986-06-01), Simm et al.

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