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Electrochemical response of TiO2 anodic layers fabricated on Ti6Al4V alloy with nanoporous, dual and nanotubular morphology

AuthorsHernández-López, J. M.; Conde, A. ; Damborenea, Juan de ; Arenas, M. A.
KeywordsPolarization, EIS
Anodic films
Issue Date2016
CitationCorrosion Science 112: 194-203 (2016)
AbstractNanoporous, dual and nanotubular anodic layers were grown on Ti6Al4V. Impedance spectra for nanoporous and dual revealed a response controlled by the barrier layer. Conversely, the response of the nanotubular layers depends on size of the intertubular space and immersion time. At immersion times ≥24 h, the spectra of the nanotubular layers with intertubular spaces ≤20 nm show the response of the barrier layer and the oxide covering the substrate. While for the nanotubular with intertubular spaces of ∼30 nm, the spectra show only the contribution of the substrate at the bottom of the intertubular spaces.
Identifiersdoi: 10.1016/j.corsci.2016.07.021
issn: 0010-938X
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