| 摘要 |
This surface-treated metal material has a base material that is formed of titanium, a titanium alloy or stainless steel, and the surface of the base material is modified. From the outermost surface to a depth of 10 nm of the surface-treated metal material, the P concentration is not less than 1.0 % by atom and the total concentration of one or more metal elements selected from the group consisting of Sn, Co, Ni, Fe, Zn and Mg is not less than 1.0% by atom. The surface-treated metal material excellently suppresses adhesion of scales that are mainly composed of calcium carbonate. |
