Tribology
Course Overview
- Introduction: relevance for industrial environment and economy.
- Fundamental properties of contacting surfaces: real contact area, Greenwood-Williamson model, roughness parameters and effect on tribological performance, topography, measurements, plasticity index.
- Tribological contacts: types of contacts, Hertzian contact contacts with and without friction.
- Lubrication: base oils, additives, their functionality, lubrication regimes, Reynolds equation, HL and EHL lubrication, pressure distribution in lubricant film, viscosity and deformation effects, mixed lubrication, boundary lubrication, influences of lubrication regime on component life.
- Friction: components of friction, basic models, effects.
- Wear: mechanisms and forms of wear.
- Characterization of surfaces and damages: typical damage forms – examples, solutions, techniques for surface characterization (topography, SEM, EDS; XPS; AES, AFM, STM, TEM..)
- Tribological aspects of mechanical components: sliding and rolling bearings, gears, seals..
Literature
[1] J.A. Williams, : Engineering tribology, Oxford University Press, 1994
[2] N.P. Suh: Tribophysics, Prentice-Hall, 1986
[3] G.W. Stachowiak, A.W. Batchelor: Engineering tribology, Elsevier, 1993
[4] T.A. Stolarski: Tribology in machine design, Oxford, 2000
[5] P.J Blau,: Friction science and technology, 1995
[6] E. Richard Booser: Handbook of Lubrication, CRC Press, 1990
[7] Hutchings, I.M.: Tribology: friction and wear of engineering materials, 1992