Abstract
An investigation was performed to study the effects of the boundary lubrication properties (measured as the sliding four-ball test welding load) and viscosity of oils on the fretting wear of mild steel. Five oils in common use and eight oils specially prepared with Vaseline and paraffin bases were tested. Regression relations among fretting wear volume, welding load and viscosity were determined. The relations revealed that the wear volume is inversely proportional to the welding load and that the quantitative influence of the oil boundary lubrication properties measured in this way on the wear volume is several times higher than the influence of viscosity. The influence of viscosity on the fretting wear volume is dependent on the oil boundary lubrication properties.
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