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Combining in situ and online approaches to monitor interfacial processes in lubricated sliding contacts

Published online by Cambridge University Press:  13 September 2016

Pantcho Stoyanov ,
J. Michael Shockley ,
Martin Dienwiebel  and
Richard R. Chromik
Pantcho Stoyanov*
Affiliation:
Fraunhofer-Institute for Mechanics of Materials IWM—MicroTribology Center μTC, Wöhlerstrasse 11, 79108 Freiburg, Germany Karlsruhe Institute of Technology KIT, Institute for Applied Materials IAM, Kaiserstrasse 12, 76131 Karlsruhe, Germany
J. Michael Shockley
Affiliation:
Department of Mining and Materials Engineering, Aluminum Research Centre—REGAL, McGill University, M.H. Wong Building, Montreal, QC H3A 0C5, Canada
Martin Dienwiebel
Affiliation:
Fraunhofer-Institute for Mechanics of Materials IWM—MicroTribology Center μTC, Wöhlerstrasse 11, 79108 Freiburg, Germany Karlsruhe Institute of Technology KIT, Institute for Applied Materials IAM, Kaiserstrasse 12, 76131 Karlsruhe, Germany
Richard R. Chromik
Affiliation:
Department of Mining and Materials Engineering, Aluminum Research Centre—REGAL, McGill University, M.H. Wong Building, Montreal, QC H3A 0C5, Canada
*
Address all correspondence to Pantcho Stoyanov at pantcho.stoyanov@mail.mcgill.ca
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Abstract

In this study, “within the environment” and “within the contact” in situ tribology techniques are combined in order to study the interfacial processes in lubricated metallic (i.e., aluminum-based) sliding conditions. The evolution of the roughness follows the trend of the coefficient of friction closely, with initially low values followed by higher roughness during steady state. Similarly, the transfer film behavior correlates well with the roughness of the worn surfaces and the subsurface microstructure of the worn surfaces. The effect of normal load on the running-in behavior is also studied in terms of differences in the interfacial processes.

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Type
Research Letters
Information
MRS Communications , Volume 6 , Issue 3 , September 2016 , pp. 301 - 308
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Copyright © Materials Research Society 2016 

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