The Wear and Friction of Polyvinyl Chloride Coatings Under Fretting Conditions

The purpose of this study was to investigate the effects and interactions of load, frequency and amplitude of slip, humidity, and film thickness on the coating life and coefficient of friction of a 52100 steel ball oscillating on polyvinyl chloride coated 1045 steel disks. A two-level, five-factor experiment with two replicates per condition was performed. An analysis of variance of the film life indicated that 26 main effects and interactions were significant at the 99 percent level. Humidity wm the most significant factor; at low humidity the mean film life was 15 times that at high humidity. Load and the interaction of load and humidity were the next most significant effects. The initial and final coefficients of friction were most significantly affected by the film thickness. Presented at the 42nd Annual Meeting in Anaheim, California May 11-14, 1987