NI-BASED CORROSION-RESISTANT ALLOY POWDER FOR USE IN ADDITIVE MANUFACTURING AND PRODUCTION METHOD FOR ADDITIVE MANUFACTURING PRODUCT USING SAME POWDER

摘要

The invention addresses the problem of providing an Ni-based corrosion-resistant alloy powder that is suitable for use in additive manufacturing, and a production method for an additive manufacturing product using the powder, the product having excellent corrosion-resistance and few defects. The invention consists of an Ni-based alloy powder having a component composition, in percentages by mass, of 14.5 to 24.0% Cr, 12.0 to 23.0% Mo, 0.01 to 7.00% Fe, 0.001 to 2.500% Co, more than 0 to 0.010% Mg, more than 0 to 0.040% N, 0.001 to 0.50% Mn, 0.001 to 0.200% Si, more than 0 to 0.50% Al, 0.001 to 0.500% Ti, more than 0 to 0.250% Cu, 0.001 to 0.300% V, 0.0001 to 0.0050% B, 0.0001 to 0.0200% Zr, and 0.0010 to 0.0300% O, the remainder being Ni, and contained as inevitable impurities, less than 0.05% C, less than 0.01% S, and less than 0.01% P. The angle of repose of the Ni-based alloy powder is 48 degrees or less.