Corrosion and Passivity of Ti-13% Nb-13% Zr in Comparison to Other Biomedical Implant Alloys

Yu, S. Y.; Scully, J. R.

doi:10.5006/1.3290281

Cited by 227 publications

(141 citation statements)

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“…Consequently, a new alloy composition, Ti13Nb-13Zr, was developed in the 1990s for biomedical applications. This alloy has good corrosion resistance, improved biocompatibility and an elastic modulus similar to that of bone [9][10][11]. Lopéz et al [9] have investigated the oxide film naturally grown on a Ti-13Nb-13Zr alloy by XPS.…”

Section: Introductionmentioning

confidence: 99%

“…The results showed that Zr was strongly enriched and Nb depleted in the oxide layer. Yu and Scully [10] found that ?-Ti-13Nb-13Zr exhibits improved corrosion resistance when compared to other implant alloys such as cp-Ti or Ti-6Al-4V in both, a simulated physiological solution (Ringer's solution) and a simulated occluded cell environment (5M HCl). Khan et al [11] studied the corrosion behaviour of Ti-6Al-4V, Ti-6Al-7Nb and Ti-13Nb-13Zr in various protein solutions and found that the corrosion resistance of the three alloys is similar in these environments.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Nanocomposite hydroxyapatite formation on a Ti–13Nb–13Zr alloy exposed in a MEM cell culture medium and the effect of H2O2 addition

et al. 2009

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Nanocomposite hydroxyapatite formation on a Ti–13Nb–13Zr alloy exposed in a MEM cell culture medium and the effect of H2O2 addition

et al. 2009

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“…In an earlier study, the present authors investigated the influence of carbon addition on the electrochemical characteristics of Ti 5 Si 3 , and found that the small additions of carbon have a significantly positive impact on the corrosion resistance of Ti 5 Si 3 in 3.5 wt.% NaCl solution [20]. Considering the fact that Nb not only has a high solubility in Ti 5 Si 3 ($21 at.%), but also possesses high passivating ability in diverse aqueous environments [21,22], it is hypothesized that Nb could be a desirable additive to Ti 5 Si 3 , which acts to reduce both the residual tensile stress and tailor the surface properties of Ti 5 Si 3 and, consequently, enhance its corrosion resistance.…”

Section: Introductionmentioning

confidence: 99%

Niobium addition enhancing the corrosion resistance of nanocrystalline Ti5Si3 coating in H2SO4 solution

Liu

et al. 2014

Acta Materialia

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nanocrystalline coatings were deposited onto Ti-6Al-4V substrates by a double glow discharge plasma technique. The effects of Nb alloying on the electrochemical behavior of the Ti 5 Si 3 nanocrystalline coatings were systematically investigated in a naturally aerated 5 wt.% H 2 SO 4 solution, for which various electrochemical techniques, including potentiodynamic polarization, electrochemical impedance spectroscopy (EIS), potentiostatic polarization and Mott-Schottky analysis, were employed. Moreover, to evaluate the corrosion performance of the as-deposited coatings over an extended period, their corrosion resistance was analyzed after 7 days' immersion in a 5 wt.% H 2 SO 4 solution by EIS measurements and observations of corroded surface morphologies. The results showed that the Ti 62.5Àx Nb x Si 37.5 (x = 0, 6.3, 12.5) nanocrystalline coatings exhibit superior corrosion resistance compared with Ti-6Al-4V, and their corrosion resistance is enhanced with increasing Nb content, suggesting that Nb alloying is an effective strategy for improving the corrosion protection ability of the Ti 5 Si 3 nanocrystalline coating. The roles of Nb additions in enhancing the corrosion resistance of the Ti 5 Si 3 nanocrystalline coatings can be summarized as: (a) reducing the residual tensile stresses of the as-deposited coatings and (b) tailoring the composition, compactness and electronic structure of the passive films formed. These findings are expected to broaden the application of Ti 5 Si 3 as a highly corrosion-resistant coating for engineering components operating under aggressive conditions.

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“…These authors used a Ringer's solution whose pH varied in range with lactic acid but contained no added fluoride ions. Ti-based alloys present spontaneous passivity in deaerated lactated Ringer's solution at 37 °C 8 . XPS investigations of Ti6Al4V in a saline pseudo-physiological solution indicate that the passive film consists mainly of TiO 2 , Al 2 O 3 and small amounts of V oxide, and that the biocompatibility of this alloy diminishes after lengthy application in a living body 9 .…”

Section: Introductionmentioning

confidence: 99%

Effect of fluoride ions on Ti6Al4V alloy passivation in lactated Ringer's serum

Schmidt

Azambuja

2003

Mat. Res.

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The corrosive behavior of Ti and its alloys in fluoride media is well known. Based on electrochemical studies, this paper describes the effect of fluoride ions on the passive behavior of Ti6Al4V alloy in lactated Ringer's serum. The open circuit potential of the alloy in the serum, which lies in the passive region of TiO 2 , shifts to more negative values as fluoride ions are added. The voltammogram obtained in the serum presents an active-passive behavior close to -0.2 V (SCE) that changes with the presence of fluoride ions, evidencing higher anodic currents. Electrochemical impedance spectroscopy plots obtained at OCP after varying immersion times in the serum display an almost capacitive behavior and the polarization resistance becomes enhanced after 7 days. With the addition of fluoride ions, the film's resistance decreases, but a stable protective layer develops after 7 days of immersion time, indicating the film's repair.

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Corrosion and Passivity of Ti-13% Nb-13% Zr in Comparison to Other Biomedical Implant Alloys

Cited by 227 publications

References 1 publication

Nanocomposite hydroxyapatite formation on a Ti–13Nb–13Zr alloy exposed in a MEM cell culture medium and the effect of H2O2 addition

Nanocomposite hydroxyapatite formation on a Ti–13Nb–13Zr alloy exposed in a MEM cell culture medium and the effect of H2O2 addition

Niobium addition enhancing the corrosion resistance of nanocrystalline Ti5Si3 coating in H2SO4 solution

Effect of fluoride ions on Ti6Al4V alloy passivation in lactated Ringer's serum

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