Powder metallurgy process

Details Powder metallurgy process Powder metallurgy process

1988-09-26

1989-09-19

Lechert, Jr., Stephen J.

Specialized metallurgical processes, compositions for use therei

Compositions

Consolidated metal powder compositions

75235, 1481261, 419 29, 419 48, 419 49, C22C 2900

Patent

active

048677884

ABSTRACT:
To control grain size during recrystallization annealing of a consolidated metallurgical, dispersion-strengthened powder allow material, the initial powder is seeded with a powder alloy in which the dispersoid is absent or is in a coarser form or is present in a lesser quantity so that the seeds provide sites at which nucleation of recrystallization is promoted.

REFERENCES:
patent: 4443949 (1984-04-01), Weber et al.
patent: 4732622 (1988-03-01), Jones

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