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HARDFACE COATING SYSTEMS AND METHODS FOR METAL ALLOYS AND OTHER MATERIALS FOR WEAR AND CORROSION RESISTANT APPLICATIONS

United States Patent Application

20150315693
A1
View the Complete Application at the US Patent & Trademark Office
The present disclosure relates generally to hardface coating systems and methods for metal alloys and other materials for wear and corrosion resistant applications. More specifically, the present disclosure relates to hardface coatings that include a network of titanium monoboride (TiB) needles or whiskers in a matrix, which are formed from titanium (Ti) and titanium diboride (TiB.sub.2) precursors by reactions enabled by the inherent energy provided by the process heat associated with coating deposition and, optionally, coating post-heat treatment. These hardface coatings are pyrophoric, thereby generating further reaction energy internally, and may be applied in a functionally graded manner. The hardface coatings may be deposited in the presence of a number of fluxing agents, beta stabilizers, densification aids, diffusional aids, and multimode particle size distributions to further enhance their performance characteristics.
SEALS, Roland D. (Oak Ridge, TN)
Consolidated Nuclear Security, LLC (Reston VA)
14/ 797,344
July 13, 2015
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT [0002] The U.S. Government has rights to the present disclosure pursuant to Contract No. DE-NA0001942 between the U.S. Department of Energy and Consolidated Nuclear Security, LLC.