Abstract
When relatively hard surfaces that make asperity contact slide against one another at speeds on the order of a m/s or more very high local temperatures can be generated. If the sliding conditions are of sufficient severity and duration, thermal distortions at local or component levels can occur. Overall thermal deformations are primarily determined by thermal gradients. We have found that during the early parts of a sliding interval, all heat input is confined to small volumes at individual asperities which form “hot mounds” surrounded by much larger cool regions where there is little or no temperature change. Thermal distortions are essentially non-existent and overall component level interactions, including thermal softening, are not much different from isothermal. Eventually, more of the surface and near surface regions are heated and the possibility of component level thermal deformation increases.
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Soom, A., Serpe, C., Dargush, G. (2001). Thermomechanics of Sliding Contact. In: Bhushan, B. (eds) Fundamentals of Tribology and Bridging the Gap Between the Macro- and Micro/Nanoscales. NATO Science Series, vol 10. Springer, Dordrecht. https://doi.org/10.1007/978-94-010-0736-8_33
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DOI: https://doi.org/10.1007/978-94-010-0736-8_33
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