WC-based cemented carbide powder, WC-based cemented carbide member, and manufacturing method for WC-based cemented carbide member

A WC-based cemented carbide member that is a laminate shaped body consisting of:

• WC particles, Cu, and a metallic bonding phase consisting of at least one of Co, Fe, and Cr,
• wherein a content of the WC particles is equal to or more than 40 mass %,
• a content of the at least one of Co, Fe, and Cr is equal to or more than 30 mass % and less than 60 mass %, and
• a ratio a/b of a content ‘a’ of the Cu and the content ‘b’ of the at least one of Co, Fe, and Cr satisfies 0.070≤a/b≤1.000.

d) A manufacturing method for a WC-based cemented carbide member, comprising:

• preheating a base material comprising a metal to or above 350° C.;
• and
• melting and solidifying a WC-based cemented carbide powder by use of a heat source to apply additive manufacturing to a surface of the base material,
• wherein the WC-based cemented carbide powder comprises consists of WC, Cu, and at least one of Co, Fe, and Cr,
• a content of the WC is equal to or more than 40 mass %,
• a content of the at least one of Co, Fe, and Cr is equal to or more than 30 mass % and less than 60 mass %, and
• a ratio a/b of a content ‘a’ of the Cu and the content ‘b’ of the at least one of Co, Fe, and Cr satisfies 0.070≤a/b≤1.000.