Erosion-resistant coatings for steel tubes

Details Erosion-resistant coatings for steel tubes Erosion-resistant coatings for steel tubes

C - Chemistry, Metallurgy

23

C

C23C 16/513 (2006.01) C23C 4/02 (2006.01) C23C 4/04 (2006.01) C23C 4/06 (2006.01) C23C 4/16 (2006.01) C23C 16/02 (2006.01) C23C 16/56 (2006.01) C23C 28/04 (2006.01)

Patent

CA 2409880

A method of providing a protective, erosion-resistant coating of a WC-MX composite on a carbon or low-alloy steel pipe or tube where M is one of nickel, cobalt, chromium or iron or combination thereof and X is one of silicon, boron or combination thereof, and heat treating the coating to metallurgically bond the coating onto a steel substrate of the pipe or tube. The coating may be deposited in one or more layers by plasma transferred arc deposition or may be deposited as a slurry coating or thermal spray coating with sintering of the coating. The steel substrate is prepared for coating by at least one of boring, honing, bright finishing, grit blasting, grinding, chemical pickling or electro-polishing of the substrate.

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