WEAR-RESISTANT, CORROSION-RESISTANT NI-CR-MO THERMAL SPRAY METHOD AND COMPONENT COATED THEREBY

摘要

Enhancing wear and corrosion resistance of an industrial component by depositing a Ni-based alloy coating having a thickness of at least about 50 microns onto a surface of the industrial component by high velocity oxyfuel propulsion of a Ni-based alloy powder containing a) Cr, b) from about 15 to about 25 wt% Mo, c) no more than about 1 wt% Fe, and d) no more than about 1 wt% elements having an atomic number greater than 42. An industrial component comprising a substrate and a wear- and corrosion-resistant coating thereon, the coating on the substrate having been deposited by HVOF deposition of a Ni-based alloy powder comprising about 15-25 wt% Mo, about 20-25 wt% Cr, less than about 1wt% elements having an atomic number greater than 42, less than about 0.1 wt% C, less than about 1 wt% Fe, and balance Ni. A Ni-based alloy powder for HVOF deposition containing a) Cr, b) from about 15 to about 25 wt% Mo, c) no more than about 1 wt% Fe, and d) no more than about 1 wt% elements having an atomic number greater than 42. A Ni-based coating on an industrial component having enhanced corrosion and wear resistance.