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Comparison of tribological and electrochemical properties of TiN, CrN, TiAlN and a-C:H coatings in simulated body fluid

Comparison of tribological and electrochemical properties of TiN, CrN, TiAlN and a-C:H coatings in simulated body fluid
Comparison of tribological and electrochemical properties of TiN, CrN, TiAlN and a-C:H coatings in simulated body fluid
TiN, CrN, TiAlN and a-C:H coatings have been used for wear reduction, but a thorough comparison of their erosion and abrasion characteristics in simulated body fluid (SBF) has never been reported in existent literature. In this study, the tribological and electrochemical performance of these coatings in SBF was investigated and compared. As a result, the TiAlN coating presented the worst tribological and electrochemical properties because of abundant products from hydration. On the contrary, due to the generation of a favorable tribochemical product (Cr2O3), the CrN coating exhibited superior characteristics of tribology and electrochemistry. The a-C:H coating also showed outstanding corrosion resistance, but premature delamination occurred in aqueous environment which might limit its application. Thus, the CrN coating was found to be the most favorable protection coating in SBF from a comprehensive viewpoint.
thin films, nitrides, amorphous materials, tribology, electrochemical properties
0254-0584
74-81
Wang, Qianzhi
696b2954-9bbe-4e19-a9d2-22435e55d9b4
Zhou, Fei
aaf54725-aefa-4df9-a69c-07b3f60060fc
Wang, Chundong
4a326956-38ca-4bc9-9077-03904b950e27
Yuen, Muk-Fung
75231bb6-1e48-4f83-816c-384145870c71
Wang, Meiling
0233c0e2-a9c8-460c-b8ed-e239e9929ba5
Qian, Tao
d3d7703e-676f-49d0-9690-c0cabe9d3c72
Matsumoto, Mitsuhiro
92ef4838-39af-4b56-b745-d9af8eb61457
Yan, Jiwang
5941b300-5771-4494-9bd0-bb932725d894
Wang, Qianzhi
696b2954-9bbe-4e19-a9d2-22435e55d9b4
Zhou, Fei
aaf54725-aefa-4df9-a69c-07b3f60060fc
Wang, Chundong
4a326956-38ca-4bc9-9077-03904b950e27
Yuen, Muk-Fung
75231bb6-1e48-4f83-816c-384145870c71
Wang, Meiling
0233c0e2-a9c8-460c-b8ed-e239e9929ba5
Qian, Tao
d3d7703e-676f-49d0-9690-c0cabe9d3c72
Matsumoto, Mitsuhiro
92ef4838-39af-4b56-b745-d9af8eb61457
Yan, Jiwang
5941b300-5771-4494-9bd0-bb932725d894

Wang, Qianzhi, Zhou, Fei, Wang, Chundong, Yuen, Muk-Fung, Wang, Meiling, Qian, Tao, Matsumoto, Mitsuhiro and Yan, Jiwang (2015) Comparison of tribological and electrochemical properties of TiN, CrN, TiAlN and a-C:H coatings in simulated body fluid. Materials Chemistry and Physics, 158, 74-81. (doi:10.1016/j.matchemphys.2015.03.039).

Record type: Article

Abstract

TiN, CrN, TiAlN and a-C:H coatings have been used for wear reduction, but a thorough comparison of their erosion and abrasion characteristics in simulated body fluid (SBF) has never been reported in existent literature. In this study, the tribological and electrochemical performance of these coatings in SBF was investigated and compared. As a result, the TiAlN coating presented the worst tribological and electrochemical properties because of abundant products from hydration. On the contrary, due to the generation of a favorable tribochemical product (Cr2O3), the CrN coating exhibited superior characteristics of tribology and electrochemistry. The a-C:H coating also showed outstanding corrosion resistance, but premature delamination occurred in aqueous environment which might limit its application. Thus, the CrN coating was found to be the most favorable protection coating in SBF from a comprehensive viewpoint.

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More information

Accepted/In Press date: 25 March 2015
e-pub ahead of print date: 29 March 2015
Published date: 5 May 2015
Keywords: thin films, nitrides, amorphous materials, tribology, electrochemical properties
Organisations: nCATS Group

Identifiers

Local EPrints ID: 377162
URI: http://eprints.soton.ac.uk/id/eprint/377162
ISSN: 0254-0584
PURE UUID: 8a779b6e-96d2-4ed4-af42-d438432fdd71

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Date deposited: 27 May 2015 11:30
Last modified: 14 Mar 2024 19:57

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Contributors

Author: Qianzhi Wang
Author: Fei Zhou
Author: Chundong Wang
Author: Muk-Fung Yuen
Author: Meiling Wang
Author: Tao Qian
Author: Mitsuhiro Matsumoto
Author: Jiwang Yan

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