TY - JOUR
T1 - Comparison of tribological and electrochemical properties of TiN, CrN, TiAlN and a-C:H coatings in simulated body fluid
AU - Wang, Qianzhi
AU - Zhou, Fei
AU - Wang, Chundong
AU - Yuen, Muk Fung
AU - Wang, Meiling
AU - Qian, Tao
AU - Matsumoto, Mitsuhiro
AU - Yan, Jiwang
N1 - Funding Information:
This work was supported by National Natural Science Foundation of China (Grant No. 51375231 ), the Research Fund for the Doctoral Program of Higher Education (Grant No. 20133218110030 ), and a grant for joint research in Keio University.
Publisher Copyright:
© 2015 Elsevier B.V. All rights reserved.
PY - 2015/5/5
Y1 - 2015/5/5
N2 - 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.
AB - 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.
KW - Amorphous materials
KW - Electrochemical properties
KW - Nitrides
KW - Thin films
KW - Tribology
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U2 - 10.1016/j.matchemphys.2015.03.039
DO - 10.1016/j.matchemphys.2015.03.039
M3 - Article
AN - SCOPUS:84928363197
SN - 0254-0584
VL - 158
SP - 74
EP - 81
JO - Materials Chemistry and Physics
JF - Materials Chemistry and Physics
ER -