Inhibitory Effect of the Sliding Surface Damage due to the Discharge

摘要

The discharge traces on the surfaces of components, which are used in environments where oil or grease are abundantly supplied, are sometimes observed. It is a well-known fact that charge accumulation by the electric double layer is formed in the sliding surface, and that causes the discharge. Discharge causes small damage and promotes wear on the sliding surface. We developed a new DLC(Diamond-like Carbon)coating, and found that the coating had the effects of the damage suppression by discharge. This time, we report the results of detailed analysis of the tested DLC coating by TEM (Transmission Electron Microscope).