Failure of solid lubricant W-S-C coatings under boundary lubrication conditions
Failure of solid lubricant W-S-C coatings under boundary lubrication conditions
A boundary lubrication regime imposes a significant challenge on mechanical systems in terms of both friction and wear. A standard approach to the boundary lubrication regime problems involves coating the contacting parts and lubrication with additivated lubricant. The presented paper explores the application of TMD-based coatings combined with a base oil and an organic-based friction modifier to provide a more environmentally friendly and cheaper solution. An investigation has been performed using a reciprocating tribometer across a range of applied loads, with post-test characterisation performed by a 3D optical profilometer, Raman microscopy, SEM, and TEM. Results show that the coating with higher hardness performs better and that the organic friction modifier increases coefficient of friction but decrease wear in the boundary lubrication regime. Moreover, it was established that without an external source of sulphur TMD-based coatings do not have a satisfactory performance in the boundary lubrication regime.
coatings, inorganic, tribology, wear
3990-3999
Simonovic, K.
c5ae0e3f-5617-41f3-a2bd-bd218ec14e78
Harvey, T. J.
3b94322b-18da-4de8-b1af-56d202677e04
Vitek, J.
038f993e-d77a-4c5b-99a7-5e11ad3edf97
Callisti, M.
86e03724-aacc-46d5-bccc-4c7025556667
Cavaleiro, A.
114e42eb-7255-47ef-834d-0546d56d3171
Polcar, T.
c669b663-3ba9-4e7b-9f97-8ef5655ac6d2
June 2021
Simonovic, K.
c5ae0e3f-5617-41f3-a2bd-bd218ec14e78
Harvey, T. J.
3b94322b-18da-4de8-b1af-56d202677e04
Vitek, J.
038f993e-d77a-4c5b-99a7-5e11ad3edf97
Callisti, M.
86e03724-aacc-46d5-bccc-4c7025556667
Cavaleiro, A.
114e42eb-7255-47ef-834d-0546d56d3171
Polcar, T.
c669b663-3ba9-4e7b-9f97-8ef5655ac6d2
Simonovic, K., Harvey, T. J., Vitek, J., Callisti, M., Cavaleiro, A. and Polcar, T.
(2021)
Failure of solid lubricant W-S-C coatings under boundary lubrication conditions.
Journal of Materials Engineering and Performance, 30 (6), .
(doi:10.1007/s11665-021-05740-1).
Abstract
A boundary lubrication regime imposes a significant challenge on mechanical systems in terms of both friction and wear. A standard approach to the boundary lubrication regime problems involves coating the contacting parts and lubrication with additivated lubricant. The presented paper explores the application of TMD-based coatings combined with a base oil and an organic-based friction modifier to provide a more environmentally friendly and cheaper solution. An investigation has been performed using a reciprocating tribometer across a range of applied loads, with post-test characterisation performed by a 3D optical profilometer, Raman microscopy, SEM, and TEM. Results show that the coating with higher hardness performs better and that the organic friction modifier increases coefficient of friction but decrease wear in the boundary lubrication regime. Moreover, it was established that without an external source of sulphur TMD-based coatings do not have a satisfactory performance in the boundary lubrication regime.
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More information
Accepted/In Press date: 25 March 2021
e-pub ahead of print date: 13 April 2021
Published date: June 2021
Additional Information:
Funding Information:
This work was supported by the OPVVV project Centre of Advanced Applied Sciences CZ.02.1.01/0.0/0.0/16-019/0000778 and ESI Fund, OPR DE International Mobility of Researchers MSCA-IF III at CTU in Prague (No: CZ.02.2.69/0.0/0.0/19_074/0016255). CzechNanoLab project LM2018110 funded by MEYS CR is gratefully acknowledged for the financial support of the measurements/sample fabrication at CEITEC Nano Research Infrastructure.
Publisher Copyright:
© 2021, ASM International.
Copyright:
Copyright 2021 Elsevier B.V., All rights reserved.
Keywords:
coatings, inorganic, tribology, wear
Identifiers
Local EPrints ID: 454834
URI: http://eprints.soton.ac.uk/id/eprint/454834
ISSN: 1059-9495
PURE UUID: 874428fc-ac4f-42fe-a716-8721f99d2463
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Date deposited: 24 Feb 2022 21:55
Last modified: 18 Mar 2024 03:19
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Contributors
Author:
K. Simonovic
Author:
J. Vitek
Author:
M. Callisti
Author:
A. Cavaleiro
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