The Use of Electrochemical Methods to Determine the Effect of Nitrides of Alloying Elements on the Electrochemical Properties of Titanium β-Alloys
Titanium beta alloys represent the new generation of materials for the manufacturing of joint implants. Their Young’s modulus is lower and thus closer to the bone tissue compared to commonly used alloys. The surface tribological properties of these materials should be improved by ion implantation. T...
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MDPI AG
2023-01-01
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| Series: | International Journal of Molecular Sciences |
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| Online Access: | https://www.mdpi.com/1422-0067/24/2/1656 |
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| author | Jitřenka Jírů Vojtěch Hybášek Petr Vlčák Jaroslav Fojt |
| author_facet | Jitřenka Jírů Vojtěch Hybášek Petr Vlčák Jaroslav Fojt |
| author_sort | Jitřenka Jírů |
| collection | DOAJ |
| description | Titanium beta alloys represent the new generation of materials for the manufacturing of joint implants. Their Young’s modulus is lower and thus closer to the bone tissue compared to commonly used alloys. The surface tribological properties of these materials should be improved by ion implantation. The influence of this surface treatment on corrosion behaviour is unknown. The surface of Ti-36Nb-6Ta, Ti-36Nb-4Zr, and Ti-39Nb titanium β-alloys was modified using nitrogen ion implantation. X-ray photoelectron spectroscopy was used for surface analysis, which showed the presence of titanium, niobium, and tantalum nitrides in the treated samples and the elimination of less stable oxides. Electrochemical methods, electrochemical impedance spectra, polarisation resistance, and Mott–Schottky plot were measured in a physiological saline solution. The results of the measurements showed that ion implantation does not have a significant negative effect on the corrosion behaviour of the material. The best results of the alloys investigated were achieved by the Ti-36Nb-6Ta alloy. The combination of niobium and tantalum nitrides had a positive effect on the corrosion resistance of this alloy. After surface treatment, the polarization resistance of this alloy increased, 2.3 × 10<sup>6</sup> Ω·cm<sup>2</sup>, demonstrating higher corrosion resistance of the alloy. These results were also supported by the results of electrochemical impedance spectroscopy. |
| first_indexed | 2024-03-09T12:19:08Z |
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| id | doaj.art-b2f1d5710a9f443c97ebe9a79b710bd7 |
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| issn | 1661-6596 1422-0067 |
| language | English |
| last_indexed | 2024-03-09T12:19:08Z |
| publishDate | 2023-01-01 |
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| series | International Journal of Molecular Sciences |
| spelling | doaj.art-b2f1d5710a9f443c97ebe9a79b710bd72023-11-30T22:43:42ZengMDPI AGInternational Journal of Molecular Sciences1661-65961422-00672023-01-01242165610.3390/ijms24021656The Use of Electrochemical Methods to Determine the Effect of Nitrides of Alloying Elements on the Electrochemical Properties of Titanium β-AlloysJitřenka Jírů0Vojtěch Hybášek1Petr Vlčák2Jaroslav Fojt3Department of Metals and Corrosion Engineering, University of Chemistry and Technology, Technická 5, 16628 Prague, Czech RepublicDepartment of Metals and Corrosion Engineering, University of Chemistry and Technology, Technická 5, 16628 Prague, Czech RepublicDepartment of Physics, Faculty of Mechanical Engineering, Czech Technical University in Prague, Technicka 4, 16607 Prague, Czech RepublicDepartment of Metals and Corrosion Engineering, University of Chemistry and Technology, Technická 5, 16628 Prague, Czech RepublicTitanium beta alloys represent the new generation of materials for the manufacturing of joint implants. Their Young’s modulus is lower and thus closer to the bone tissue compared to commonly used alloys. The surface tribological properties of these materials should be improved by ion implantation. The influence of this surface treatment on corrosion behaviour is unknown. The surface of Ti-36Nb-6Ta, Ti-36Nb-4Zr, and Ti-39Nb titanium β-alloys was modified using nitrogen ion implantation. X-ray photoelectron spectroscopy was used for surface analysis, which showed the presence of titanium, niobium, and tantalum nitrides in the treated samples and the elimination of less stable oxides. Electrochemical methods, electrochemical impedance spectra, polarisation resistance, and Mott–Schottky plot were measured in a physiological saline solution. The results of the measurements showed that ion implantation does not have a significant negative effect on the corrosion behaviour of the material. The best results of the alloys investigated were achieved by the Ti-36Nb-6Ta alloy. The combination of niobium and tantalum nitrides had a positive effect on the corrosion resistance of this alloy. After surface treatment, the polarization resistance of this alloy increased, 2.3 × 10<sup>6</sup> Ω·cm<sup>2</sup>, demonstrating higher corrosion resistance of the alloy. These results were also supported by the results of electrochemical impedance spectroscopy.https://www.mdpi.com/1422-0067/24/2/1656nitrogen ion implantationtitanium alloynitridescorrosion |
| spellingShingle | Jitřenka Jírů Vojtěch Hybášek Petr Vlčák Jaroslav Fojt The Use of Electrochemical Methods to Determine the Effect of Nitrides of Alloying Elements on the Electrochemical Properties of Titanium β-Alloys International Journal of Molecular Sciences nitrogen ion implantation titanium alloy nitrides corrosion |
| title | The Use of Electrochemical Methods to Determine the Effect of Nitrides of Alloying Elements on the Electrochemical Properties of Titanium β-Alloys |
| title_full | The Use of Electrochemical Methods to Determine the Effect of Nitrides of Alloying Elements on the Electrochemical Properties of Titanium β-Alloys |
| title_fullStr | The Use of Electrochemical Methods to Determine the Effect of Nitrides of Alloying Elements on the Electrochemical Properties of Titanium β-Alloys |
| title_full_unstemmed | The Use of Electrochemical Methods to Determine the Effect of Nitrides of Alloying Elements on the Electrochemical Properties of Titanium β-Alloys |
| title_short | The Use of Electrochemical Methods to Determine the Effect of Nitrides of Alloying Elements on the Electrochemical Properties of Titanium β-Alloys |
| title_sort | use of electrochemical methods to determine the effect of nitrides of alloying elements on the electrochemical properties of titanium β alloys |
| topic | nitrogen ion implantation titanium alloy nitrides corrosion |
| url | https://www.mdpi.com/1422-0067/24/2/1656 |
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