Evaluation Technologies of Tribology Properties on Hard Coatings

Abstract

This article explains the tribological evaluation technologies for hard coatings such as diamond-like carbon(DLC), chromium nitride(CrN), and titanium nitride(TiN), including pin-on-disk tests,scratch tests, and load-carrying capacity tests. In particular, we summarize the trends of actual measurement data from the perspectives of wear resistance, peeling resistance, and load-carrying capacity,which are important characteristics of hard coatings.