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Seeing the third-body formation of metallic tribosystems by novel on-line tribometry

: Dienwiebel, M.; Feser, T.; Korres, S.; Gola, M.

Raparelli, T. ; Italian Tribology Association -AIT-:
WTC 2013, 5th World Tribology Congress. Extended abstracts : Held in Torino (Italy) on September 8-13, 2013
Torino, 2013
ISBN: 978-88-908185-0-9 (CD-ROM)
ISBN: 978-1-63439-352-2 (Ausgabe Curran)
World Tribology Congress (WTC) <5, 2013, Torino>
Deutsche Forschungsgemeinschaft DFG
Fraunhofer IWM ()
tribology; friction; wear; in-situ; brass; lubrication

During lubricated sliding of metallic surfaces the near surfaces undergo significant changes in terms of topography, composition and microstructure [1] and a so-called “third body” [2] develops. The third-body formation strongly influences the frictional and wear behavior of the system. A system that develops a nanocrystalline microstructure which is chemically different from the bulk material can provide low friction and wear after the running-in. Also the surface topography typically develops a roughness that is in the same order of magnitude as the grain size.