Electrochemical formation of oxide films on Ti6Al4V alloy

Alexei Pilipenko

Abstract


The results of the study of the process of electrochemical oxidation of Ti6Al4V titanium alloy in solutions of tartaric, citric and oxalic acids are presented. It is shown that the nature of the forming dependencies of the alloy depends on the magnitude of the current density. When ja<0,5 A∙dm–2, a continuous oxide film does not form on the alloy surface and the specified voltage value is not reached. At ja>0,5 A∙dm–2, a continuous oxide film forms on the surface of the alloy and linear dependences are observed. Films produced under these conditions are interference colored. The maximum thickness of the film is determined by the specified value of the forming voltage U and does not depend on other parameters of electrolysis. For a number of identical values of U, the dependence of the limiting film thickness has a linear form. The color of the oxide film is determined by the voltage value and does not depend on the current density and electrolyte concentration. It is established that the color of the film corresponds to the magnitude of the forming voltage in the range of 10–100 V. The effect is due to the fact that film formation during anodic polarization occurs under the presence of a potential gradient, the magnitude of which is constant for titanium. An increase in a given value of U leads to a proportional increase in the limiting thickness of the oxide, which determines the color of its color. The research results to determine the effect of electrolysis parameters on the characteristics of oxide films make it possible to substantiate the regime for producing TiO2 films on the surface of the Ti6Al4V alloy. The obtained data are the basis for the development of technology for the electrochemical oxidation of titanium alloys to give their surface functional properties


Keywords


anodic polarization; electrochemical oxidation; oxide film; forming dependence; potential gradient

Full Text:

PDF

References


Ellerbrock, D., Macdonald, D. D. (2014). Passivity of titanium, part 1: film growth model diagnostics. Journal of Solid State Electrochemistry, 18 (5), 1485–1493. doi: https://doi.org/10.1007/s10008-013-2334-6

Garg, H., Bedi, G., Garg, A. (2012). Implant surface modifications: a review. Journal of Clinical and Diagnostic Research, 6 (2), 319–324.

Liu, X., Chu, P., Ding, C. (2004). Surface modification of titanium, titanium alloys, and related materials for biomedical applications. Materials Science and Engineering: R: Reports, 47 (3-4), 49–121. doi: https://doi.org/10.1016/j.mser.2004.11.001

Mandracci, P., Mussano, F., Rivolo, P., Carossa, S. (2016). Surface Treatments and Functional Coatings for Biocompatibility Improvement and Bacterial Adhesion Reduction in Dental Implantology. Coatings, 6 (1), 7. doi: https://doi.org/10.3390/coatings6010007

John, A. A., Jaganathan, S. K., Supriyanto, E., Manikandan, A. (2016). Surface Modification of Titanium and its Alloys for the Enhancement of Osseointegration in Orthopaedics. Current Science, 111 (6), 1003. doi: https://doi.org/10.18520/cs/v111/i6/1003-1015

Diefenbeck, M., Mückley, T., Schrader, C., Schmidt, J., Zankovych, S., Bossert, J. et. al. (2011). The effect of plasma chemical oxidation of titanium alloy on bone-implant contact in rats. Biomaterials, 32 (32), 8041–8047. doi: https://doi.org/10.1016/j.biomaterials.2011.07.046

Park, E.-J., Song, Y.-H., Hwang, M.-J., Song, H.-J., Park, Y.-J. (2015). Surface Characterization and Osteoconductivity Evaluation of Micro/Nano Surface Formed on Titanium Using Anodic Oxidation Combined with H2O2 Etching and Hydrothermal Treatment. Journal of Nanoscience and Nanotechnology, 15 (8), 6133–6136. doi: https://doi.org/10.1166/jnn.2015.10469

Lubas, M., Sitarz, M., Jasinski, J. J., Jelen, P., Klita, L., Podsiad, P., Jasinski, J. (2014). Fabrication and characterization of oxygen – Diffused titanium using spectroscopy method. Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 133, 883–886. doi: https://doi.org/10.1016/j.saa.2014.06.067

Pilipenko, A., Pancheva, H., Deineka, V., Vorozhbiyan, R., Chyrkina, M. (2018). Formation of oxide fuels on vt6 alloy in the conditions of anodial polarization in solutions H2SO4. Eastern-European Journal of Enterprise Technologies, 3 (6 (93)), 33–38. doi: https://doi.org/10.15587/1729-4061.2018.132521

Wang, G., Li, J., Lv, K., Zhang, W., Ding, X., Yang, G. et. al. (2016). Surface thermal oxidation on titanium implants to enhance osteogenic activity and in vivo osseointegration. Scientific Reports, 6 (1). doi: https://doi.org/10.1038/srep31769

Hayle, S. T. (2014). Synthesis and Characterization of Titanium Oxide Nanomaterials Using Sol-Gel Method. American Journal of Nanoscience and Nanotechnology, 2 (1), 1. doi: https://doi.org/10.11648/j.nano.20140201.11

De Maeztu, M. A., Alava, J. I., Gay-Escoda, C. (2003). Ion implantation: surface treatment for improving the bone integration of titanium and Ti6Al4V dental implants. Clinical Oral Implants Research, 14 (1), 57–62. doi: https://doi.org/10.1034/j.1600-0501.2003.140108.x

Mohammed, M. T., Khan, Z. A., Siddiquee, A. N. (2014). Surface Modifications of Titanium Materials for developing Corrosion Behavior in Human Body Environment: A Review. Procedia Materials Science, 6, 1610–1618. doi: https://doi.org/10.1016/j.mspro.2014.07.144




DOI: http://dx.doi.org/10.21303/2585-6847.2018.00756

Refbacks

  • There are currently no refbacks.


Copyright (c) 2018 Alexei Pilipenko

Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.

ISSN 2585-6847 (Online), ISSN 2585-6839 (Print)