CrN/NbN coatings deposited by HIPIMS: A preliminary study of erosion–corrosion performance

Purandare, Yashodhan; Ehiasarian, Arutiun P.; Stack, Margaret; Hovsepian, P.Eh.

doi:10.1016/j.surfcoat.2009.11.006

Cited by 36 publications

(33 citation statements)

References 26 publications

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“…Although the maps give some pictures on the tribo-corrosion behaviour, as shown for other studies in the area [31][32][33][34][35][36] it is based on the experimental data, and not at this stage, a mathematical model of the process [37]. Hence, in future there is significant scope to extend the methodology employed in the current study, and employ modelling techniques to verify the data, in order to establish these boundaries theoretically.…”

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confidence: 95%

Tribocorrosion behaviour of TiC O thin films in bio-fluids

Mathew

Ariza

Rocha

et al. 2010

Electrochimica Acta

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This version is available at https://strathprints.strath.ac.uk/18850/ Strathprints is designed to allow users to access the research output of the University of Strathclyde. Unless otherwise explicitly stated on the manuscript, Copyright © and Moral Rights for the papers on this site are retained by the individual authors and/or other copyright owners. Please check the manuscript for details of any other licences that may have been applied. You may not engage in further distribution of the material for any profitmaking activities or any commercial gain. You may freely distribute both the url (https://strathprints.strath.ac.uk/) and the content of this paper for research or private study, educational, or not-for-profit purposes without prior permission or charge.Any correspondence concerning this service should be sent to the 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, TiC x O y ,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. 2The 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. Tribo-corrosion maps were generated, based on the results, indicating the change in mechanisms of the tribological and corrosion parameters for such coatings.

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confidence: 95%

Tribocorrosion behaviour of TiC O thin films in bio-fluids

Mathew

Ariza

Rocha

et al. 2010

Electrochimica Acta

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“…After wear process, the situation changes and the coating of longer bilayer period becomes the most protective surface under corrosion-wear conditions. Some interesting work looking at erosion-corrosion of multilayered coatings has been conducted by Purandare et al (2010). Crn/nbn multilayered coatings with a total thickness of 3.9 mm were tested under slurry jet erosion at 90° of 500-700 mm angular Al 2 o 3 in a na 2 Co 3 + nahCo 3 buffered solution with a ph 10. tests under cathodic, passive and anodic potentials showed an antagonistic effect for passive +300 mV and to a lesser extent for anodic +700 mV attributed to the protective nature of the passive layers of Cr and nb at +300 mV and a cushioning effect due to preferential dissolution of Cr phase.…”

Section: Multilayered Coatingsmentioning

confidence: 99%

Coatings for tribocorrosion protection

Wood

Wharton

2011

Tribocorrosion of Passive Metals and Coatings

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“…Both the corrosion and tribological performances of CrN/NbN coatings (deposited by Arc or conventional magnetron sputtering techniques) have already been investigated [21,22,31,32]. The benefits of using HIPIMS over conventional PVD to deposit CrN/NbN have been also demonstrated [16,33,34]. However, the impact of defects on the coating performance of HIPIMS deposited CrN/NbN was understudied and so far, very little attention was given towards the coatings defects associated with HIPIMS.…”

Section: Introductionmentioning

confidence: 99%