Method for forming a plasma-surface-modified composite coating layer on a stellite material

摘要

The present invention relates to a method of forming a coating layer having excellent abrasion resistance on a stellite material used for maintenance and spur gears, sleeves, valves, bushing materials, and the like. The surface of the stellite material is subjected to plasma diffusion treatment ) To form a diffusion layer (nitrided layer) deeply and then continuously forming a TiN film by a plasma chemical vapor deposition process to form a compound coating or a diffusion-only surface modification layer thickness (Scratches) and abrasion of the wearer, which is an object of the present invention.;The present invention relates to a method for forming a coating layer on a stellite material, the method comprising plasma nitriding the stellite material at a temperature in the range of 517 to 733C to produce CrN and Cr₂N mixed coating layer was formed, and then a Ti source: TiCl₄Solution N Source: N₂Gas, Plasma Source: H₂And Ar gas, a substrate temperature of 550 to 800C, and an applied voltage of 525 V or more to form a plasma surface modified composite coating layer on the stellite material.