Application of Static Metallic Adhesion Data to Friction

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Abstract
The significance of metallic adhesion phenomena are reviewed relative to the sliding friction behavior of metals and alloys. A model is presented for the analysis of sliding friction based upon contact resistance measurements and experimental data presented for the materials combinations ultra-pure iron vs ultra-pure iron, iron 65-ppm carbon vs iron 65-ppm carbon, and 440 C stainless steel vs 440 C stainless steel. It is shown that the behavior observed for these materials combinations under conditions of sliding friction can be predicted from normal force adhesion experiments using a four wire contact resistance bridge circuit. The effects of environment as well as compressive load, sliding frequency, time, and specimen geometry are discussed. It is further shown that significant data are generated by the adhesion technique for the definition of the mechanical properties of the true load bearing area.

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