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Different aspects of the role of wear debris in fretting wear |
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| Affiliation: | 1. School of Mechanical Engineering, University of Leeds, Leeds LS2 9JT, UK;2. Harbin Engineering University, Harbin, 150001, China;3. School of Materials, University of Manchester, Manchester, M1 3BB, UK;4. Colorado School of Mines, Dept. of Metallurgical & Materials Engineering, Golden, CO 80401, USA;5. Army Research Laboratory, Aberdeen Proving Grounds, MD, 21005, USA;6. Dept. of Materials Science and Engineering, University of North Texas, Denton, TX 76203, USA |
| Abstract: | Two different aspects of the role of oxide wear debris in fretting wear are studied by allowing them to escape from the interface during sliding. This is accomplished by laser surface texturing that forms regular micro-pores topography on the friction surfaces which enables this escape. It is found that the role of oxide wear debris depends on the dominant fretting wear mechanism. Their presence in the interface protects the friction surfaces when the dominant wear mechanism is adhesive and harms the friction surfaces when this mechanism is abrasive. The escape of oxide wear debris into the micro-pores results in up to 84% reduction in the electrical contact resistance of the textured fretting surfaces. |
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