Abstract
The need to minimize both material and energy losses in mechanical systems has led to an enlarged interest in the field of tribology, the science of friction, lubrication, and wear. This paper provides an overview of the elements of this discipline, beginning with a discussion of the tribosystem concept and subsequent consideration of the separate elements of such systems. The physical and chemical characteristics of surfaces are discussed as is the combination of surface to form a tribological contact. The role of lubricants in the tribosystem is examined as are the techniques presently employed for the physical and chemical analysis of tribological phenomena. The potential for modern analytical techniques to permit an enhanced understanding of surface and subsurface processes at tribological interfaces is indicated. Finally, the wear mechanisms thought to be operative in tribosystems are reviewed and prospects for energy conservation through tribological improvements are mentioned.
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