Abstract
Measurements of acoustic emission (AE) in severe sliding of metallic specimens were performed with a view to determining relationships, if any, between AE and wear-friction parameters. It was found that AE is readily observed in dry sliding and that emission rates and cumulative count data are sensitive to the external variables which influence tribological contact conditions. A relationship between cumulative AE count and frictional work is proposed and possible reasons for the form of the relationship are discussed. Emissions did not appear to be directly dependent on rates of wear but the possibility that AE-wear correlations exist should not be precluded in view of recent work in other laboratories using significantly different apparatus and instruments.
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