Abstract
An effect of the type and concentration of lubricating additives (antiwear and extreme-pressure) on the rolling contact fatigue was investigated and discussed in the chemomechanical way. To this end complementary elemental and chemical surface analyses of the worn surface were performed, accompanied by calculation of the EHL film thickness. It is shown that if the lubricating film is thin and the surface of test specimens has numerous defects, fatigue failures are initiated on the surface, which strengthens an impact of surface related tribochemical phenomena on the rolling contact fatigue.
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