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Open AccessArticle

The Running-in of Lubricated Metal-Metal Contacts—A Review on Ultra-Low Wear Systems

Fraunhofer IWM MikroTribologie Centrum, Rintheimer Querallee 2a, 76131 Karlsruhe , Germany
Lubricants 2018, 6(2), 54;
Received: 11 April 2018 / Revised: 11 May 2018 / Accepted: 15 May 2018 / Published: 8 June 2018
(This article belongs to the Special Issue Applied Nanotribology)
The running-in of lubricated metal–metal contacts leading to ultra-low wear is inseparably connected with the formation of the third body and vice versa. Adequate tribological stressing provides the system with a power density that leads to complex changes of topography, near-surface morphology and chemical composition. During the running-in these changes proceed until the system shows small friction and ultra-low wear rates and performs stable with low sensitivity to external perturbations. By means of high-resolution wear measurement as well as physical and chemical analysis the capability of a tribological system to develop the third body can be determined. Moreover, the running-in can be controlled by sample finishing, oil additivation and the sequence of initial stressing steps. This contribution summarizes 20 years of own research on ultra-low wear systems and its applications. View Full-Text
Keywords: running-in; lubricated sliding; ultra-low wear running-in; lubricated sliding; ultra-low wear
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MDPI and ACS Style

Scherge, M. The Running-in of Lubricated Metal-Metal Contacts—A Review on Ultra-Low Wear Systems. Lubricants 2018, 6, 54.

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