Wear Behavior of Titanium Nitride Thin Film Coatings

Abstract

This project aims to study the wear behavior of the titanium nitride thin (TiN) film coatings under the circumstance of the dry condition wear test. This work applies the wear test following ASTM G133-05 in the reciprocating wear resistance and the layer is a flat-on-flat type using the pin with a 10 millimeters diameter to press. At the end of the pin is attached with the wear flat made of silicon carbide abrasive paper Grit 1000. The speeds in this project are 200 and 300 rpm and the loads are 5 and 10 N. This study uses a central composite design and a response surface methodology to find the optimization. The result shows that the main effect from the two factors (the speed and the load) indicates the statistically significant effects on the weight loss and the interaction between these two factors effects on the weight loss by statistically significant at the .05 level. The response surface methodology with the desirability function gives the optimization at 282.07 rpm with 8.32 N and the weight loss is 0.0144 grams. The study of the microstructural analysis suggested that the wear behavior of a coating material has an adhesive wear mechanism.