Corrosion behavior of an oxide nanotube-coated β-type Ti-45Nb implant alloy in a simulated inflammatory solution

Research output: Contribution to journal › Research article › Contributed › peer-review

Contributors

  • Marina Yu Roshchina - , Chair of Electrochemistry, Leibniz Institute for Solid State and Materials Research Dresden (Author)
  • Christine Joy Querebillo - , Chair of Electrochemistry, Leibniz Institute for Solid State and Materials Research Dresden (Author)
  • Evgenia Dmitrieva - , Leibniz Institute for Solid State and Materials Research Dresden (Author)
  • Andrea Voss - , Leibniz Institute for Solid State and Materials Research Dresden (Author)
  • Noel Israel - , Leibniz Institute for Solid State and Materials Research Dresden (Author)
  • Thomas Gemming - , Chair of Materials Synthesis and Analysis, Leibniz Institute for Solid State and Materials Research Dresden (Author)
  • Lars Giebeler - , Chair of Materials Synthesis and Analysis, Leibniz Institute for Solid State and Materials Research Dresden (Author)
  • Stefan Pilz - , Chair of Materials Synthesis and Analysis, Leibniz Institute for Solid State and Materials Research Dresden (Author)
  • Stefan Roeher - , Chair of Electrochemistry, Leibniz Institute for Solid State and Materials Research Dresden (Author)
  • Volker Hoffmann - , Leibniz Institute for Solid State and Materials Research Dresden (Author)
  • Martin Hantusch - , Leibniz Institute for Solid State and Materials Research Dresden (Author)
  • Inez M. Weidinger - , Chair of Electrochemistry (Author)
  • Annett Gebert - , Leibniz Institute for Solid State and Materials Research Dresden (Author)

Abstract

Oxide nanotube (ONT) layers were anodically grown on β-type Ti-45Nb and crystallized at 450 °C to anatase (Ti,Nb)O2. A corrosion analysis in normal and inflammatory phosphate buffered saline (PBS) comprised electrochemical polarization studies, metal release analysis, UV-Vis and EPR measurements. In inflammatory PBS with 0.5 wt% H2O2 (pH 5.0) amorphous ONT degraded, while crystallized ONT were most stable with lowest release. Their barrier-type behavior is attributed to their ordered crystalline nature and a fusion layer. As-ground Ti-45Nb surfaces were most reactive with highest corrosion and metal release rates. Mainly •OH radical-coordinated Ti(IV)-H2O2 complexes were detected in immersion solutions.

Details

Original languageEnglish
Article number111767
Journal Corrosion science : the journal on environmental degradation of materials and its control
Volume227
Publication statusPublished - Feb 2024
Peer-reviewedYes

Keywords

ASJC Scopus subject areas

Keywords

  • A: titanium, Alloy B: ICP-OES, Polarization, TEM C: oxide coatings