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Tribological properties of the two-step thermally deposited chromium films

Tribological properties of the two-step thermally deposited chromium films
Tribological properties of the two-step thermally deposited chromium films
Chromium thin films were prepared on glass substrate via a two-step thermal deposition and their structural, chemical and tribological properties were determined. The X-ray diffraction pattern of the two-step thermally deposited chromium film showed the presence of well-defined body-centered cubic Cr metal structure with a prominent (1 1 0) plane. X-ray photoelectron spectroscopy depth profile showed a presence of ∼2% of oxygen in the film within the first five etching cycles showing oxygen incorporation. Dry sliding wear experiments at temperatures ranging from 20 to 200 °C were conducted. The thin films were worn with either 100Cr6 or 440C bearing balls using a ball-on-disk sliding configuration at a contact load of 1 N. Friction coefficient and coating wear rates were measured and wear tracks were analyzed using optical microscopy, scanning electron microscopy and energy-dispersive X-ray spectroscopy. Thin films exhibited low wear rates at room temperature and an unexpected wear behavior at the elevated temperatures. Only the first half of the metallic chromium film was worn out after ∼18 m of dry sliding at room temperature, whereas increase in temperature resulted in a decrease in wear resistance of the film.
chromium films, thermal deposition, oxygen plasma, xps, ball-on-disk
0169-4332
1089-1095
Lazauskas, A.
998beac1-ac5f-44fd-a091-74136ddcd3ab
Baltrusaitis, J.
7fa19ed9-2427-4303-a78f-b09bcfdb1e07
Grigaliūnas, V.
366ece82-1fad-4530-8614-a141dc04b911
Baltušnikas, A.
81144279-0a4c-4010-8d7a-db0833d6c60c
Abakevičienė, B.
b8ccf10d-5d71-4fd7-9d03-e623eac3753b
Polcar, T.
c669b663-3ba9-4e7b-9f97-8ef5655ac6d2
Lazauskas, A.
998beac1-ac5f-44fd-a091-74136ddcd3ab
Baltrusaitis, J.
7fa19ed9-2427-4303-a78f-b09bcfdb1e07
Grigaliūnas, V.
366ece82-1fad-4530-8614-a141dc04b911
Baltušnikas, A.
81144279-0a4c-4010-8d7a-db0833d6c60c
Abakevičienė, B.
b8ccf10d-5d71-4fd7-9d03-e623eac3753b
Polcar, T.
c669b663-3ba9-4e7b-9f97-8ef5655ac6d2

Lazauskas, A., Baltrusaitis, J., Grigaliūnas, V., Baltušnikas, A., Abakevičienė, B. and Polcar, T. (2013) Tribological properties of the two-step thermally deposited chromium films. Applied Surface Science, 283, 1089-1095. (doi:10.1016/j.apsusc.2013.07.083).

Record type: Article

Abstract

Chromium thin films were prepared on glass substrate via a two-step thermal deposition and their structural, chemical and tribological properties were determined. The X-ray diffraction pattern of the two-step thermally deposited chromium film showed the presence of well-defined body-centered cubic Cr metal structure with a prominent (1 1 0) plane. X-ray photoelectron spectroscopy depth profile showed a presence of ∼2% of oxygen in the film within the first five etching cycles showing oxygen incorporation. Dry sliding wear experiments at temperatures ranging from 20 to 200 °C were conducted. The thin films were worn with either 100Cr6 or 440C bearing balls using a ball-on-disk sliding configuration at a contact load of 1 N. Friction coefficient and coating wear rates were measured and wear tracks were analyzed using optical microscopy, scanning electron microscopy and energy-dispersive X-ray spectroscopy. Thin films exhibited low wear rates at room temperature and an unexpected wear behavior at the elevated temperatures. Only the first half of the metallic chromium film was worn out after ∼18 m of dry sliding at room temperature, whereas increase in temperature resulted in a decrease in wear resistance of the film.

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More information

e-pub ahead of print date: 24 July 2013
Published date: 15 October 2013
Keywords: chromium films, thermal deposition, oxygen plasma, xps, ball-on-disk
Organisations: nCATS Group

Identifiers

Local EPrints ID: 356309
URI: http://eprints.soton.ac.uk/id/eprint/356309
ISSN: 0169-4332
PURE UUID: 26a958e6-63e8-406a-89a9-fbfbb8798ce3
ORCID for T. Polcar: ORCID iD orcid.org/0000-0002-0863-6287

Catalogue record

Date deposited: 18 Sep 2013 14:01
Last modified: 15 Mar 2024 03:40

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Contributors

Author: A. Lazauskas
Author: J. Baltrusaitis
Author: V. Grigaliūnas
Author: A. Baltušnikas
Author: B. Abakevičienė
Author: T. Polcar ORCID iD

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