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Lubricants 2018, 6(2), 54; https://doi.org/10.3390/lubricants6020054

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
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)
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Abstract

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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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
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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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