Examination of the tribolayer formation of a self-lubricant W-S-C sputtered coating
Examination of the tribolayer formation of a self-lubricant W-S-C sputtered coating
A W–S–C self-lubricating coating was deposited by d.c. magnetron sputtering from carbon and tungsten disulfide targets on steel substrates. The coating showed a carbon content of 42 at% and a S/W ratio of 1.26. The film was characterized (structure, hardness, adhesion) and tribologically tested using a pin-on-disk device. The load and number of cycles were varied and the corresponding wear tracks were thoroughly investigated by several techniques. Moreover, the wear tracks were monitored with Raman spectroscopy including in-situ measurements. The W–S–C coating exhibited friction and wear decreasing with the applied load. It has been demonstrated that the running-in process is related with changes in the Raman spectra on the wear tracks.
solid lubrication, sliding, nanoindentation, self-lubricating coating
188-193
Pimentel, J.V.
cdf22a56-017a-4145-9d42-d0e322417e5a
Polcar, T.
c669b663-3ba9-4e7b-9f97-8ef5655ac6d2
Evaristo, M.
ad10848a-2415-413e-b5f9-ed28d055ef60
Cavaleiro, A.
114e42eb-7255-47ef-834d-0546d56d3171
March 2012
Pimentel, J.V.
cdf22a56-017a-4145-9d42-d0e322417e5a
Polcar, T.
c669b663-3ba9-4e7b-9f97-8ef5655ac6d2
Evaristo, M.
ad10848a-2415-413e-b5f9-ed28d055ef60
Cavaleiro, A.
114e42eb-7255-47ef-834d-0546d56d3171
Pimentel, J.V., Polcar, T., Evaristo, M. and Cavaleiro, A.
(2012)
Examination of the tribolayer formation of a self-lubricant W-S-C sputtered coating.
Surface and Coatings Technology, 47, .
(doi:10.1016/j.triboint.2011.10.021).
Abstract
A W–S–C self-lubricating coating was deposited by d.c. magnetron sputtering from carbon and tungsten disulfide targets on steel substrates. The coating showed a carbon content of 42 at% and a S/W ratio of 1.26. The film was characterized (structure, hardness, adhesion) and tribologically tested using a pin-on-disk device. The load and number of cycles were varied and the corresponding wear tracks were thoroughly investigated by several techniques. Moreover, the wear tracks were monitored with Raman spectroscopy including in-situ measurements. The W–S–C coating exhibited friction and wear decreasing with the applied load. It has been demonstrated that the running-in process is related with changes in the Raman spectra on the wear tracks.
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Published date: March 2012
Keywords:
solid lubrication, sliding, nanoindentation, self-lubricating coating
Organisations:
nCATS Group
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Local EPrints ID: 356304
URI: http://eprints.soton.ac.uk/id/eprint/356304
ISSN: 0257-8972
PURE UUID: 92aa265d-d954-4088-80ab-b2076a262c9a
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Date deposited: 17 Sep 2013 13:14
Last modified: 15 Mar 2024 03:40
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Author:
J.V. Pimentel
Author:
M. Evaristo
Author:
A. Cavaleiro
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