Wear resistant, powder metallurgy cold work tool steel articles

Details Wear resistant, powder metallurgy cold work tool steel articles Wear resistant, powder metallurgy cold work tool steel articles

1998-06-24

1999-11-23

Mai, Ngoclan

Powder metallurgy processes

Powder metallurgy processes with heating or sintering

Metal and nonmetal in final product

419 49, B22F 315

Patent

active

059894903

ABSTRACT:
A hot-worked, fully dense, wear resistant, vanadium-rich, powder metallurgy cold work tool steel article having improved impact toughness. This is achieved by controlling the amount, composition and size of the primary carbides and by insuring that substantially all the primary carbides remaining after hardening and tempering are MC-type vanadium-rich carbides. The article is produced by hot isostatic compacting of nitrogen atomized powder particles.

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patent: 5238482 (1993-08-01), Stasko et al.
patent: 5344477 (1994-09-01), Stasko et al.
patent: 5589011 (1996-12-01), Gonsalves

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