Tribo-Corrosion behaviour of TiCxOy thin films in bio fluids
Mathew, Mathew T and Ariza, E. and Rocha, L.A. and Vaz, F. and Fernandes, A.C. and Stack, Margaret (2010) Tribo-Corrosion behaviour of TiCxOy thin films in bio fluids. Electrochimica Acta, 56 (2). pp. 929-937. ISSN 0013-4686 (https://doi.org/10.1016/j.electacta.2010.08.067)
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Abstract
In recent years, the development of thin film systems for decorative applications has attracted significant attention in scientific research. These 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 tribo-corrosion) are particularly important for lifetime prediction. The tribo-corrosion 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 (-0.9 V, -0.5 V, 0.0 V and +0.5 V) and applied load (3, 6 and 9 N). The study was conducted in a reciprocating sliding tribosystem (Plint 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 Rp (polarization resistance) and Cf(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. Tribo-corrosion maps were generated, based on the results, indicating the change in mechanisms of the tribological and corrosion parameters for such coatings.
ORCID iDs
Mathew, Mathew T, Ariza, E., Rocha, L.A., Vaz, F., Fernandes, A.C. and Stack, Margaret ORCID: https://orcid.org/0000-0001-6535-6014;-
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Item type: Article ID code: 18850 Dates: DateEvent30 December 2010Published16 September 2010Published Online24 August 2010AcceptedSubjects: Technology > Mechanical engineering and machinery
Technology > Engineering (General). Civil engineering (General) > BioengineeringDepartment: Faculty of Engineering > Mechanical and Aerospace Engineering Depositing user: Ms Katrina May Date deposited: 12 May 2010 13:12 Last modified: 01 Nov 2024 01:32 Related URLs: URI: https://strathprints.strath.ac.uk/id/eprint/18850