Exploring the Impact of Potential, Ammonium Fluoride Concentration, and Anodization Time on the Structure, Surface Characteristics, and Corrosion Resistance of Nanotubular Titanium Oxide Coatings on Biomedical Alloy Ti-6Al-4V ELI

Authors

  • Deyan Veselinov Institute of Metal Science, Equipment and Technologies with Hydro- and Aerodynamics Centre, Bulgarian Academy of Sciences

DOI:

https://doi.org/10.7546/CRABS.2024.05.09

Keywords:

titania nanotubes, nanotubular growth, titanium anodizing, surface treatment, biomedical alloy

Abstract

The current research delves into assessing the impact of applied potential, ammonium fluoride concentration, and anodization duration on the structural, phase compositional, microhardness, and surface roughness attributes of nanotubular titanium oxide coatings on anodized Ti-6Al-4V ELI. A meticulous experimental design was executed to systematically investigate the varied effects of these factors. Scanning electron microscopy (SEM) unveiled the presence of well-defined titania nanotubes on the surfaces of the anodized specimens. X-ray diffraction (XRD) analysis discerned the composition of the nanotubular oxide layer, revealing the presence of both anatase and a mixture of anatase and rutile phases contingent upon the anodization parameters. Notably, surface microhardness, surface roughness, and corrosion resistance manifested noticeable variations in response to alterations in applied voltage, NH4F concentration, and anodization duration within the designated experimental ranges.

Author Biography

Deyan Veselinov, Institute of Metal Science, Equipment and Technologies with Hydro- and Aerodynamics Centre, Bulgarian Academy of Sciences

Mailing Address:
Institute of Metal Science, Equipment and Technologies with Hydro- and
Aerodynamics Centre “Acad. A. Balevski”,
Bulgarian Academy of Sciences,
67 “Shipchenski prohod” Blvd,
1574, Sofia, Bulgaria

E-mail: dveselinov@ims.bas.bg

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Published

25-05-2024

How to Cite

[1]
D. Veselinov, “Exploring the Impact of Potential, Ammonium Fluoride Concentration, and Anodization Time on the Structure, Surface Characteristics, and Corrosion Resistance of Nanotubular Titanium Oxide Coatings on Biomedical Alloy Ti-6Al-4V ELI”, C. R. Acad. Bulg. Sci. , vol. 77, no. 5, pp. 715–724, May 2024.

Issue

Section

Engineering Sciences