Next Article in Journal
Luminescent Solar Concentrators from Waterborne Polymer Coatings
Next Article in Special Issue
In Vitro Corrosion of Titanium Nitride and Oxynitride-Based Biocompatible Coatings Deposited on Stainless Steel
Previous Article in Journal
Recent Advances in Mussel-Inspired Synthetic Polymers as Marine Antifouling Coatings
Previous Article in Special Issue
Comparison of the Clinical Results of Identically Designed Total Knee Prostheses with Different Surface Roughnesses
Article

In Vitro Corrosion and Tribocorrosion Performance of Biocompatible Carbide Coatings

1
Department for Advanced Surface Processing and Analysis by Vacuum Technologies, National Institute of Research and Development for Optoelectronics-INOE 2000, 409 Atomistilor St., 077125 Magurele, Romania
2
Physical Materials Science and Composite Materials Centre, National Research Tomsk Polytechnic University, Lenin Avenue 43, 634050 Tomsk, Russia
3
Faculty of Material Sciences and Engineering, Gheorghe Asachi Technical University of Iasi, 41 Prof.dr.doc. D. Mangeron St., 700050 Iasi, Romania
4
Faculty of Material Science and Engineering, University Politehnica of Bucharest, 313 Spl. Independentei, 060042 Bucharest, Romania
*
Author to whom correspondence should be addressed.
Coatings 2020, 10(7), 654; https://doi.org/10.3390/coatings10070654
Received: 3 June 2020 / Revised: 29 June 2020 / Accepted: 5 July 2020 / Published: 7 July 2020
(This article belongs to the Special Issue Surface Modification of Medical Implants)
The present study aims to explain the corrosion and the tribocorrosion performance in simulated conditions of the human body by the level of stress, adhesion of coating to substrate, roughness, and hardness. The coatings were synthesized by the cathodic arc evaporation method on 316L stainless steel substrates to be used for load bearing implants. Structure, elemental, and phase compositions were studied by means of energy dispersive spectrometry and X-ray diffraction, respectively. The grain size and strain of the coatings were determined by the Williamson–Hall plot method. Tests on hardness, adhesion, roughness, and electrochemical behavior in 0.9% NaCl solution at 37 ± 0.5 °C were carried out. Tribocorrosion performances, evaluated by measuring the friction coefficient and wear rate, were conducted in 0.9% NaCl solution using the pin on disc method at 37 ± 0.5 °C. TiC and ZrC exhibited a (111) preferred orientation, while TiNbC had a (200) orientation and the smallest crystallite size (8.1 nm). TiC was rougher than ZrC and TiNbC; the lowest roughness was found for TiNbC coatings. The highest hardness and adhesion values were found for TiNbC, followed by TiC and the ZrC. All coatings improved the corrosion resistance of 316L steels, but TiNbC showed the best corrosion behavior. TiNbC had the lowest friction coefficient (1.6) and wear rate (0.99 × 10−5 mm3·N−1∙m−1) values, indicating the best tribocorrosive performance in 0.9% NaCl at 37 ± 0.5 °C. View Full-Text
Keywords: TiNbC coatings; cathodic arc evaporation; corrosion resistance; friction and wear; tribocorrosion TiNbC coatings; cathodic arc evaporation; corrosion resistance; friction and wear; tribocorrosion
Show Figures

Graphical abstract

MDPI and ACS Style

Pana, I.; Vladescu, A.; Constantin, L.R.; Sandu, I.G.; Dinu, M.; Cotrut, C.M. In Vitro Corrosion and Tribocorrosion Performance of Biocompatible Carbide Coatings. Coatings 2020, 10, 654. https://doi.org/10.3390/coatings10070654

AMA Style

Pana I, Vladescu A, Constantin LR, Sandu IG, Dinu M, Cotrut CM. In Vitro Corrosion and Tribocorrosion Performance of Biocompatible Carbide Coatings. Coatings. 2020; 10(7):654. https://doi.org/10.3390/coatings10070654

Chicago/Turabian Style

Pana, Iulian, Alina Vladescu, Lidia R. Constantin, Ioan G. Sandu, Mihaela Dinu, and Cosmin M. Cotrut. 2020. "In Vitro Corrosion and Tribocorrosion Performance of Biocompatible Carbide Coatings" Coatings 10, no. 7: 654. https://doi.org/10.3390/coatings10070654

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop