Powder metallurgy processes – Powder metallurgy processes with heating or sintering – Powder pretreatment
Patent
1986-02-25
1989-06-13
Lechert Jr., Stephen J.
Powder metallurgy processes
Powder metallurgy processes with heating or sintering
Powder pretreatment
419 13, 419 14, 419 28, 419 64, C22C 105
Patent
active
048391395
ABSTRACT:
A powder metallurgy produced high speed tool steel article comprising a mixture of prealloyed high speed tool steel particles coated with a hard, wear resistant material, such as a carbide or nitride, mixed with prealloyed high speed tool steel uncoated particles; the particles are compacted to essentially full density and the hard, wear resistant material is at the boundaries of the coated particles and contained in a continuous matrix of the high speed tool steel. The article is produced by hot compacting a particle charge to essentially full density of a mixture of the coated and uncoated particles.
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Dorsch Carl J.
Dulis Edward J.
Stasko William
Crucible Materials Corporation
Jorgensen Eric
Lechert Jr. Stephen J.
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