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Microstructure and water-lubricated friction and wear properties of CrN(C) coatings with different carbon contents

Microstructure and water-lubricated friction and wear properties of CrN(C) coatings with different carbon contents
Microstructure and water-lubricated friction and wear properties of CrN(C) coatings with different carbon contents
The CrN(C) coatings with different carbon contents were deposited using unbalanced magnetron sputtering via adjusting the carbon target current, and their microstructure and mechanical properties were characterized using Raman spectrum, X-ray photoelectron spectroscopy and nano-indenter, respectively. The water-lubricated tribological properties of the CrN(C) coatings against Si3N4 balls were investigated using the ball-on-disk tribometer. The results showed that the C content in the CrN(C) coatings increased gradually, and the peak intensity correlated to Cr7C3 crystal phase became stronger when the carbon target current increased. When the carbon target current was 1A, the hardness of the CrN(C) coatings increased to 22.5GPa due to formation of Cr7C3 phase and amorphous CNX, and a little amorphous carbon had positive effect on tribological properties of the CrN(C) coatings in water lubrication. On the other hand, CrN(C) coatings deposited at 2~4A exhibited a lower hardness and deteriorated tribological properties, due to the presence of a major amount of Cr2O3 particles in the films.
thin films, sputtering, x-ray diffraction, photoelectron spectroscopy, mechanical properties
0169-4332
579-587
Wang, Qianzhi
696b2954-9bbe-4e19-a9d2-22435e55d9b4
Zhou, Fei
aaf54725-aefa-4df9-a69c-07b3f60060fc
Ding, Xiangdong
cdaeff6e-127e-460d-a1bf-afba3582daab
Zhou, Zhifeng
fb070de3-bcb2-4923-9c60-e76b61f89f5f
Wang, Chundong
4a326956-38ca-4bc9-9077-03904b950e27
Zhang, Wenjun
5fec7a3f-8b30-4f58-86ea-f75b82efdda0
Li, Lawrence Kwok-Yan
1be013ff-b4b7-4479-a8b6-08a515c967e6
Lee, Shuit-Tong
bca61648-b3cc-4c93-a582-76e995c2c7ce
Wang, Qianzhi
696b2954-9bbe-4e19-a9d2-22435e55d9b4
Zhou, Fei
aaf54725-aefa-4df9-a69c-07b3f60060fc
Ding, Xiangdong
cdaeff6e-127e-460d-a1bf-afba3582daab
Zhou, Zhifeng
fb070de3-bcb2-4923-9c60-e76b61f89f5f
Wang, Chundong
4a326956-38ca-4bc9-9077-03904b950e27
Zhang, Wenjun
5fec7a3f-8b30-4f58-86ea-f75b82efdda0
Li, Lawrence Kwok-Yan
1be013ff-b4b7-4479-a8b6-08a515c967e6
Lee, Shuit-Tong
bca61648-b3cc-4c93-a582-76e995c2c7ce

Wang, Qianzhi, Zhou, Fei, Ding, Xiangdong, Zhou, Zhifeng, Wang, Chundong, Zhang, Wenjun, Li, Lawrence Kwok-Yan and Lee, Shuit-Tong (2013) Microstructure and water-lubricated friction and wear properties of CrN(C) coatings with different carbon contents. Applied Surface Science, 268, 579-587. (doi:10.1016/j.apsusc.2013.01.027).

Record type: Article

Abstract

The CrN(C) coatings with different carbon contents were deposited using unbalanced magnetron sputtering via adjusting the carbon target current, and their microstructure and mechanical properties were characterized using Raman spectrum, X-ray photoelectron spectroscopy and nano-indenter, respectively. The water-lubricated tribological properties of the CrN(C) coatings against Si3N4 balls were investigated using the ball-on-disk tribometer. The results showed that the C content in the CrN(C) coatings increased gradually, and the peak intensity correlated to Cr7C3 crystal phase became stronger when the carbon target current increased. When the carbon target current was 1A, the hardness of the CrN(C) coatings increased to 22.5GPa due to formation of Cr7C3 phase and amorphous CNX, and a little amorphous carbon had positive effect on tribological properties of the CrN(C) coatings in water lubrication. On the other hand, CrN(C) coatings deposited at 2~4A exhibited a lower hardness and deteriorated tribological properties, due to the presence of a major amount of Cr2O3 particles in the films.

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More information

Accepted/In Press date: 5 January 2013
e-pub ahead of print date: 11 January 2013
Published date: 1 March 2013
Keywords: thin films, sputtering, x-ray diffraction, photoelectron spectroscopy, mechanical properties
Organisations: nCATS Group

Identifiers

Local EPrints ID: 377169
URI: http://eprints.soton.ac.uk/id/eprint/377169
ISSN: 0169-4332
PURE UUID: 01ce3bdf-f2bb-4f11-93f8-9ffca7adfa0b

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Date deposited: 01 Jun 2015 14:05
Last modified: 14 Mar 2024 19:57

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Contributors

Author: Qianzhi Wang
Author: Fei Zhou
Author: Xiangdong Ding
Author: Zhifeng Zhou
Author: Chundong Wang
Author: Wenjun Zhang
Author: Lawrence Kwok-Yan Li
Author: Shuit-Tong Lee

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