SPRAYED COATING EXCELLENT IN SLURRY WEAR RESISTANCE AND CAVITATION CORROSION RESISTANCE

摘要

PROBLEM TO BE SOLVED: To provide a sprayed coating excellent in slurry wear resistance and cavitation corrosion resistance.;SOLUTION: A sprayed coating is a WC-based sprayed coating in which WC is used as a hard phase. The coating contains 8 to 19% (by mass%, hereinafter referred to the same) of Co and 2 to 8% of Cr, with the balance substantially consisting of WC and inevitable impurities, and satisfies the relationship of following formula (1): 2×[Co]≥11×[Cr]-50 and formula (2): 6×[Co]≤7×[Cr]+58, wherein [Co] represents the content of Co, and [Cr] represents the content of Cr.;COPYRIGHT: (C)2014,JPO&INPIT