A Comparison of Surface Temperature Theories and Experimental Resultsfor High Speed Dry Sliding

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Abstract
Tests are described in which an SAE 1113 steel pin is rubbed on a similar disc at sliding speeds up to 100 m/s and loads up to 7 kgf. Measured pin sub-surface temperatures are used to predict total surface temperatures by considering the heat flow through an idealised single asperity tip, and from the existing theories of Jaeger, Archard and Barber. The frictional coefficient and transitions in the sliding process are shown to be related to the predicted total temperatures.