Abstract
Surface conformity was characterized in an earlier study [27] on the basis of composite roughness profile. In this paper the influence of surface conformity in lubrication is reported. The results of experiments under high slide/roll ratios are first analysed in terms of Λ, the ratio of film thickness to composite roughness. Experiments with surfaces having different degrees of conformity under low slide/roll ratios are then described. The lubrication is again analysed in terms of the Λ ratio for these cases. Surface roughness can itself modify the nominal film thickness and its relevance to the present problem has been discussed on the basis of existing literature. It is shown that the asperity level conformity results in improved lubrication.
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