Abstract
A study of the rolling-sliding wear characteristics of annealed carbon steels was made under conditions of dry metal-to-metal contact in air. An abrupt increase in wear occurs during the initial period of frictional contact and a further abrupt increase occurs after a specific number of revolutions. Small pits and fine cracks were observed on the surface prior to the abrupt increase in wear. There is a definite relation between the Hertzian stress and the number of revolutions at which the abrupt increase in wear occurs. It is considered that fatigue-related factors may contribute to dry rolling-sliding wear.
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