Frictional properties of a surface covered with a soft metal film

DOI IR IR (HANDLE) Open Access

Description

It is known that the frictional properties of surfaces covered with soft metal film differ from those between surfaces without films. The aim of the present study is to clarify the effect of surface films on the frictional properties. First, the frictional properties in contact between a single hard protuberance and a surface electroplated with a film of soft metal are investigated experimentally and theoretically. As a result, a simple empirical expression of friction which represents the effect of the surface film and the load dependency is presented. And the plane strain deformation model of the soft metal film is offered in the analysis. Next, the interference effect of the film deformation between protuberances on the frictional properties is discussed in the contact of an indentor having two spherical protuberances located closely, to obtain a basic knowledge for the investigation of real engineering surfaces.

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