Abstract
A novel pin-on-disk apparatus was developed that provides a repetitive impact loading between periods of sliding through alternate lifting and dropping of a spring-suspended spinning disk, away from, and onto, a spring-supported pin, respectively. The combination of the repetitive impact loading and sliding achieved in the apparatus was able to induce film adhesion failure of a thin film coated disk within 20 min, which, in the absence of the impact loading, would have survived the test due to the adequate sliding wear resistance. The impact/sliding pin-on-disk apparatus developed is therefore a useful means of predicting the sliding wear resistance and film adhesion of a coated system simultaneously.
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