Powder metallurgy processes – Powder metallurgy processes with heating or sintering – Heat and pressure simultaneously to effect sintering
Patent
1993-12-07
1996-07-23
Walsh, Donald P.
Powder metallurgy processes
Powder metallurgy processes with heating or sintering
Heat and pressure simultaneously to effect sintering
419 28, 419 42, 419 53, 419 55, B22F 324
Patent
active
055386830
ABSTRACT:
A powder-metallurgy-produced, essentially titanium-free, nickel-containing maraging steel article such as for use in the manufacture of die casting die components and other hot work tooling components. The article preferably contains an intentional addition of niobium. The article may be produced as a hot-isostatically-compacted, solution annealed, fully dense mass of prealloyed particles, or alternately, as a hot-isostatically-compacted, plastically deformed and solution annealed, fully dense mass of prealloyed particles.
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Dorsch Carl J.
Pinnow Kenneth E.
Crucible Materials Corporation
Greaves John N.
Walsh Donald P.
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