| 摘要 |
A method of providing a protective, erosion-resistant coating of a WC-M X 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, bor on or combination thereof, and heat treating the coating to metallurgically bond t he 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, gr it blasting, grinding, chemical pickling or electro-polishing of the substrate. |
