期刊
ELECTROCHIMICA ACTA
卷 56, 期 2, 页码 929-937出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2010.08.067
关键词
Tribocorrosion; Applied load; Electrode potential; Electrochemical Impedance Spectroscopy (EIS); Synergism
资金
- FCT (Foundation of Science and Technology), Portugal
- FEDER
- FCT-Fundacao para a Ciencia e a Tecnologia [PTDC/CTM/69362/2006]
- Fundação para a Ciência e a Tecnologia [PTDC/CTM/69362/2006] Funding Source: FCT
Decorative coatings require not only an attractive appearance for market applications, but also an ability to protect the surface underneath. Because of this, corrosion, wear and their combined effects (termed tribocorrosion) are particularly important for lifetime prediction. In this paper, the tribocorrosion behaviour of a range of single layered titanium oxycarbide, TiCxOy, coatings, produced by DC reactive magnetron sputtering, has been studied and reported as a function of electrode potential and applied load. The study was conducted in a reciprocating sliding tribo-system (Flint TE 67/E) in a bio-fluid (an artificial perspiration solution) at room temperature. During the wear tests, both the open-circuit potential and the corrosion current were monitored. The results showed that electrode potential and load have a significant influence on the total material loss. The variations in R-p (polarization resistance) and C-f (capacitance) before and after sliding, obtained by Electrochemical Impedance Spectroscopy (EIS) were evaluated in order to provide an understanding of the resistance of the film in such conditions. Tribocorrosion maps were generated, based on the results, indicating the change in mechanisms of the tribological and corrosion parameters for such coatings, as a function of load and applied potential. (C) 2010 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据