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Friction and wear properties of TiCN coatings sliding against SiC and steel balls in air and water

Friction and wear properties of TiCN coatings sliding against SiC and steel balls in air and water
Friction and wear properties of TiCN coatings sliding against SiC and steel balls in air and water
The TiCN coatings were deposited on WC cemented carbides using enhanced cathodic arc magnetron sputtering. The topography of TiCN coatings were observed using scanning electron microscopy (SEM), the composition and structure of TiCN coatings were analyzed by energy dispersive spectroscopy (EDS) and X-ray diffraction (XRD). The friction and wear properties of TiCN coatings sliding against SiC and steel balls in air and water were investigated using ball-on-disk tribometer. The results showed that the TiCN coatings had a strong (111) preferred orientation. The friction coefficient and the specific wear rates of the TiCN/SiC tribopairs in air were higher than those in water. When the TiCN coatings slid against SiC balls in water, the friction coefficient and the specific wear rates first decreased, and then increased with the normal load, but decreased linearly with the sliding velocity. The lowest friction coefficient of 0.171 was obtained at 3 N and 0.4 m/s, while the lowest specific wear rate of the TiCN coatings was 2.3 × 10? 6mm3/Nm at 6 N and 0.1 m/s. The TiCN coatings were worn out when the normal loads were higher than 6 N. When the TiCN coatings slid against the SUJ2 and SUS440C balls in water, the friction coefficient increased to 0.271 and 1.026 respectively. The EDS analysis showed that Fe and O elements existed on the wear track. This indicated that the tribochemical reaction occurred at the friction contact area.
TiCN coatings, friction, wear, water lubrication
0040-6090
4830-4841
Wang, Qianzhi
696b2954-9bbe-4e19-a9d2-22435e55d9b4
Zhou, Fei
aaf54725-aefa-4df9-a69c-07b3f60060fc
Chen, Kangmin
ac0429e2-ab9b-41fe-a8c3-2bc53a6cfc6a
Wang, Meiling
0233c0e2-a9c8-460c-b8ed-e239e9929ba5
Qian, Tao
d3d7703e-676f-49d0-9690-c0cabe9d3c72
Wang, Qianzhi
696b2954-9bbe-4e19-a9d2-22435e55d9b4
Zhou, Fei
aaf54725-aefa-4df9-a69c-07b3f60060fc
Chen, Kangmin
ac0429e2-ab9b-41fe-a8c3-2bc53a6cfc6a
Wang, Meiling
0233c0e2-a9c8-460c-b8ed-e239e9929ba5
Qian, Tao
d3d7703e-676f-49d0-9690-c0cabe9d3c72

Wang, Qianzhi, Zhou, Fei, Chen, Kangmin, Wang, Meiling and Qian, Tao (2011) Friction and wear properties of TiCN coatings sliding against SiC and steel balls in air and water. [in special issue: 5th International Conference on Technological Advances of Thin Films & Coatings] Thin Solid Films, 519 (15), 4830-4841. (doi:10.1016/j.tsf.2011.01.038).

Record type: Article

Abstract

The TiCN coatings were deposited on WC cemented carbides using enhanced cathodic arc magnetron sputtering. The topography of TiCN coatings were observed using scanning electron microscopy (SEM), the composition and structure of TiCN coatings were analyzed by energy dispersive spectroscopy (EDS) and X-ray diffraction (XRD). The friction and wear properties of TiCN coatings sliding against SiC and steel balls in air and water were investigated using ball-on-disk tribometer. The results showed that the TiCN coatings had a strong (111) preferred orientation. The friction coefficient and the specific wear rates of the TiCN/SiC tribopairs in air were higher than those in water. When the TiCN coatings slid against SiC balls in water, the friction coefficient and the specific wear rates first decreased, and then increased with the normal load, but decreased linearly with the sliding velocity. The lowest friction coefficient of 0.171 was obtained at 3 N and 0.4 m/s, while the lowest specific wear rate of the TiCN coatings was 2.3 × 10? 6mm3/Nm at 6 N and 0.1 m/s. The TiCN coatings were worn out when the normal loads were higher than 6 N. When the TiCN coatings slid against the SUJ2 and SUS440C balls in water, the friction coefficient increased to 0.271 and 1.026 respectively. The EDS analysis showed that Fe and O elements existed on the wear track. This indicated that the tribochemical reaction occurred at the friction contact area.

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More information

e-pub ahead of print date: 15 January 2011
Published date: 31 May 2011
Keywords: TiCN coatings, friction, wear, water lubrication
Organisations: nCATS Group

Identifiers

Local EPrints ID: 377174
URI: http://eprints.soton.ac.uk/id/eprint/377174
ISSN: 0040-6090
PURE UUID: 58e2141a-8fd8-4408-b169-06d2b809a594

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Date deposited: 01 Jun 2015 14:26
Last modified: 14 Mar 2024 19:57

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Contributors

Author: Qianzhi Wang
Author: Fei Zhou
Author: Kangmin Chen
Author: Meiling Wang
Author: Tao Qian

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