Specialized metallurgical processes – compositions for use therei – Processes – Producing solid particulate free metal directly from liquid...
Patent
1991-05-22
1993-08-24
Wyszomierski, George
Specialized metallurgical processes, compositions for use therei
Processes
Producing solid particulate free metal directly from liquid...
75355, 75956, B22F 908
Patent
active
052384829
ABSTRACT:
Prealloyed high-vanadium, cold work tool steel particles are provided for use in the powder-metallurgy production of tool steel articles. The particles are of a cold work tool steel alloy having an MC-type vanadium carbide dispersion of a carbide particle size substantially entirely less than 6 microns and in an amount of 18.5 to 34.0% by volume. The particles are produced by atomizing a molten tool steel alloy at a temperature above 2910.degree. F. and rapidly cooling the atomized alloy to form solidified particles therefrom. The particles have the MC-type vanadium carbide dispersion therein.
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Pinnow Kenneth E.
Stasko William
Crucible Materials Corporation
Wyszomierski George
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