METHOD FOR MANUFACTURING SURFACE TREATMENT METAL MATERIAL

摘要

Provided is a method for manufacturing a surface treatment metal material, whereby a metal material having stable and excellent slidability can be manufactured with a low environmental load without covering the surface of the metal material with an oxide film. The method for manufacturing a surface treatment metal material includes a surface treatment step, wherein an anode electrode and a cathode electrode are immersed in an electrolyte solution, and furthermore, a metal material as a material to be treated is disposed above the liquid surface of the electrolyte solution, then, the surface of the metal material is treated by applying a voltage at a level with which a complete plasma state is generated or higher to between the anode electrode and the cathode electrode.