Abstract
This paper investigates the influence of the interfacial temperature rise, in the dry sliding of metals, on the size of hot spots. An area expansion coefficient that corrects for such thermally induced changes is introduced. It is shown that the discrepancy between theoretical and experimental estimates of the area ratio, reported by some authors, may be avoided by taking into consideration the effects of temperature elevation on the properties of the sliding pair: namely, material softening and thermal expansion.
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