Literature Review of Solid Lubrication Mechanisms.
Abstract
For this report, five phenomenological models are proposed for solid lubrication. These models are: 1) Viscous flow of the solid lubricant due to strong attachment to both surfaces and with uniform shear across the gap; 2) Plastic flow of solid lubricant; 3) Substrate/film slip model in which the sliding takes place between one substrate and the surface of the film; 4) Interfilm slip model when lubricant film is strongly attached to the two substrate surface. The sliding take place at the interface; and 5) Intercrystalline slip model which is basically a modification of the plastic flow process. The lubricant film is composed of small crystalling blocks of lubricants which slip past each other. The expected tribological behavior is suggested for each model. A review of the literature was conducted to determine which model could be supported by the evidence available. The report includes a discussion of the following topics: Observation of Film Behavior; Substrate Adhesion; Film Formation, Wear, and Failure; Crystal Structure Effects; Surface Chemical Effects; and Frictional Behavior.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 01, 1987
- Accession Number
- ADA185010
Entities
People
- M. B. Peterson
- M. D. Kanakia
Organizations
- Southwest Research Institute