Abstract
A new formulation of the wear coefficient was developed and tested experimentally. Two different types of pin-on-disc wear tests were conducted using three commercial, A6061 aluminum-based metal–matrix composites (MMCs). One type of test resulted in a spiral track and the other a circular track. Hardened tool steel discs were used as the sliding counterface for MMC pins having 10, 15 and 20% alumina reinforcements. A new wear equation was derived and shown to be a better predictor of steady-state wear coefficients. It is based on an exponential transient wear volume equation and Archard’s equation.
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