Specialized metallurgical processes – compositions for use therei – Compositions – Consolidated metal powder compositions
Patent
1989-03-03
1990-10-16
Lechert, Jr., Stephen J.
Specialized metallurgical processes, compositions for use therei
Compositions
Consolidated metal powder compositions
4285395, C22C 2902
Patent
active
049631837
ABSTRACT:
A corrosion resistant cemented carbide composite constitutes from about 2 to about 30 percent by weight metal binder and from about 70 to about 99.5 percent by weight metal carbide wherein the metal carbide comprises about 2 to about 80 percent by weight of a transition metal carbide or mixtures thereof selected from Group IVB and Group VB of the Periodic Table of Elements and from about 20 to about 98 percent tungsten carbide. The metal binder phase comprises a major portion by weight nickel and from about 5 to about 30 percent by weight chromium. The cemented carbide composite comprises a granular tungsten carbide phase, a semi-continuous solid solution carbide phase extending closely adjacent at least a portion of the grains of tungsten carbide for enhancing corrosion resistance, and a substantially continuous metal binder phase.
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GTE Valenite Corporation
Lechert Jr. Stephen J.
Nigohosian, Jr. Leon
Walter Robert E.
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