Self-Organized Anodic Oxides on Titanium Alloys Prepared from Glycol- and Glycerol-Based Electrolytes
The anodization of commercially pure Ti alloy (99.5 wt %) and two biomedical titanium alloys, Ti6Al7Nb and Ti6Al4V, was performed, and the resulting anodic oxides were studied. The biomedical alloys were made by Laser Engineered Net Shaping. The glycol-based and glycerol-based electrolytes with 0.3...
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2020-10-01
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| Online Access: | https://www.mdpi.com/1996-1944/13/21/4743 |
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| author | Marta Michalska-Domańska Magdalena Łazińska Justyna Łukasiewicz Johannes M. C. Mol Tomasz Durejko |
| author_facet | Marta Michalska-Domańska Magdalena Łazińska Justyna Łukasiewicz Johannes M. C. Mol Tomasz Durejko |
| author_sort | Marta Michalska-Domańska |
| collection | DOAJ |
| description | The anodization of commercially pure Ti alloy (99.5 wt %) and two biomedical titanium alloys, Ti6Al7Nb and Ti6Al4V, was performed, and the resulting anodic oxides were studied. The biomedical alloys were made by Laser Engineered Net Shaping. The glycol-based and glycerol-based electrolytes with 0.3 M ammonium fluoride and 2 wt % of deionized water content were tested. It was found that electrolyte type as well as the chemical composition of the base substrate affected the final morphology and chemical composition of the anodic oxide formed. A higher current density, ionic mobility, and oxide growth rate were obtained in glycol-based electrolyte as compared to those obtained in glycerol-based electrolyte for all tested alloys. A self-organized nanotubular and nanoporous morphology of the anodic oxide in both types of electrolyte was obtained. In each electrolyte, the alloy susceptibility to oxidation increased in the following order: Ti6Al4V < Ti 99.5% < Ti6Al7Nb, which can be correlated to the oxidation susceptibility of the base titanium alloy. It was observed that the more impurities/alloying elements in the substrate, the lower the pore diameters of anodic oxide. There was a higher observed incorporation of electrolyte species into the anodic oxide matrix in the glycerol-based electrolyte compared with that in glycol-based electrolyte. |
| first_indexed | 2024-03-10T15:22:21Z |
| format | Article |
| id | doaj.art-130eab345a4446cbada201c1fa5b5bef |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T15:22:21Z |
| publishDate | 2020-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-130eab345a4446cbada201c1fa5b5bef2023-11-20T18:21:09ZengMDPI AGMaterials1996-19442020-10-011321474310.3390/ma13214743Self-Organized Anodic Oxides on Titanium Alloys Prepared from Glycol- and Glycerol-Based ElectrolytesMarta Michalska-Domańska0Magdalena Łazińska1Justyna Łukasiewicz2Johannes M. C. Mol3Tomasz Durejko4Department of Materials Science and Engineering, Delft University of Technology, Mekelweg 2, 2628 CD Delft, The NetherlandsFaculty of Advanced Technology and Chemistry, Institute of Materials Science and Engineering, Military University of Technology, 2 Kaliskiego Str., 00-908 Warsaw, PolandFaculty of Advanced Technology and Chemistry, Institute of Materials Science and Engineering, Military University of Technology, 2 Kaliskiego Str., 00-908 Warsaw, PolandDepartment of Materials Science and Engineering, Delft University of Technology, Mekelweg 2, 2628 CD Delft, The NetherlandsFaculty of Advanced Technology and Chemistry, Institute of Materials Science and Engineering, Military University of Technology, 2 Kaliskiego Str., 00-908 Warsaw, PolandThe anodization of commercially pure Ti alloy (99.5 wt %) and two biomedical titanium alloys, Ti6Al7Nb and Ti6Al4V, was performed, and the resulting anodic oxides were studied. The biomedical alloys were made by Laser Engineered Net Shaping. The glycol-based and glycerol-based electrolytes with 0.3 M ammonium fluoride and 2 wt % of deionized water content were tested. It was found that electrolyte type as well as the chemical composition of the base substrate affected the final morphology and chemical composition of the anodic oxide formed. A higher current density, ionic mobility, and oxide growth rate were obtained in glycol-based electrolyte as compared to those obtained in glycerol-based electrolyte for all tested alloys. A self-organized nanotubular and nanoporous morphology of the anodic oxide in both types of electrolyte was obtained. In each electrolyte, the alloy susceptibility to oxidation increased in the following order: Ti6Al4V < Ti 99.5% < Ti6Al7Nb, which can be correlated to the oxidation susceptibility of the base titanium alloy. It was observed that the more impurities/alloying elements in the substrate, the lower the pore diameters of anodic oxide. There was a higher observed incorporation of electrolyte species into the anodic oxide matrix in the glycerol-based electrolyte compared with that in glycol-based electrolyte.https://www.mdpi.com/1996-1944/13/21/4743anodizationbiomedical alloystitanium anodic oxideelectrolytes viscositycurrent densityoxidation susceptibility |
| spellingShingle | Marta Michalska-Domańska Magdalena Łazińska Justyna Łukasiewicz Johannes M. C. Mol Tomasz Durejko Self-Organized Anodic Oxides on Titanium Alloys Prepared from Glycol- and Glycerol-Based Electrolytes Materials anodization biomedical alloys titanium anodic oxide electrolytes viscosity current density oxidation susceptibility |
| title | Self-Organized Anodic Oxides on Titanium Alloys Prepared from Glycol- and Glycerol-Based Electrolytes |
| title_full | Self-Organized Anodic Oxides on Titanium Alloys Prepared from Glycol- and Glycerol-Based Electrolytes |
| title_fullStr | Self-Organized Anodic Oxides on Titanium Alloys Prepared from Glycol- and Glycerol-Based Electrolytes |
| title_full_unstemmed | Self-Organized Anodic Oxides on Titanium Alloys Prepared from Glycol- and Glycerol-Based Electrolytes |
| title_short | Self-Organized Anodic Oxides on Titanium Alloys Prepared from Glycol- and Glycerol-Based Electrolytes |
| title_sort | self organized anodic oxides on titanium alloys prepared from glycol and glycerol based electrolytes |
| topic | anodization biomedical alloys titanium anodic oxide electrolytes viscosity current density oxidation susceptibility |
| url | https://www.mdpi.com/1996-1944/13/21/4743 |
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