Corrosion behaviour of porous Ti–39Nb alloy for biomedical applications

Fojt, Jaroslav; Joska, Luděk; Málek, Jaroslav

doi:10.1016/j.corsci.2013.03.007

Cited by 108 publications

(62 citation statements)

References 50 publications

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“…However, the elastic modulus of Ti is higher than that of bone. This is undesirable as this may result in stress shielding and implant loosening . This drawback can be overcome with the use of a porous Ti alloy.…”

Section: Introductionmentioning

confidence: 99%

Corrosion of Ti35Zr28Nb in Hanks’ solution and 3.5 wt% NaCl solution

McElligott

Shi

et al. 2017

Materials & Corrosion

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This research assessed the corrosion behaviour of Ti35Zr28Nb compared to that of commercial purity Ti (CP Ti) Grade 2 under crevice‐corrosion conditions in: (i) Hanks’ solution at 37 °C and (ii) 3.5 wt% NaCl solution at 95 °C. Both Ti35Zr28Nb and CP Ti showed low corrosion rates. There was no evidence of crevice corrosion indicating that both CP Ti and the Ti alloy were not sensitive to crevice corrosion under the conditions studied.

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Section: Introductionmentioning

confidence: 99%

Corrosion of Ti35Zr28Nb in Hanks’ solution and 3.5 wt% NaCl solution

McElligott

Shi

et al. 2017

Materials & Corrosion

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“…Titanium has a remarkable corrosion behavior because of the very stable oxide film formed on its surface [6] . However, this film is unstable in reducing or complexing media, such as hydrochloric acid and solutions that contain chloride ions, which limits its industrial application [7][8][9] .…”

Section: Introductionmentioning

confidence: 99%

Effect of surface mechanical attrition treatment on corrosion resistance of commercial pure titanium

Zhan

Zhang

et al. 2015

Surface and Coatings Technology

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“…Fojt et al (2013) tested Ti39Nb for crevice corrosion but they concluded that "given the assumption that the corrosion process was localised in the pores, no artificial crevice was formed on the specimens, in contrast to the standardized procedure. There was also one study that used the exact alloy but the investigation focused on mechanical properties rather than corrosion.…”

Section: Previous Workmentioning

confidence: 99%

“…This is undesirable as this may result in stress shielding and implant loosening (Fojt et al, 2013). This highlights the need for alloys and porous materials.…”

Section: Introductionmentioning

confidence: 99%

Corrosion of Ti biomaterials

McElligott¹

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The experimental investigation of corrosion stability of Ti-35.4Zr-28Nb in synthetic body fluid was conducted to aid in the development of a porous Ti alloy for use as a bone replacement material. The corrosion analysis was conducted using immersion testing for 28 days, Open Circuit Potential (OCP), Electrochemical Impedance Spectroscopy (EIS) and potentiodynamic polarisation curves. The corrosion performance of the Ti alloy was compared to that of commercial purity (CP Ti) Grade 2 under in-vitro testing conditions in:1. Hanks' solution at 37 °C 2. 3.5% NaCl solution at 95 °C Immersion testing results of both the materials showed negligible weight loss and low concentration of Ti, Zr and Nb, which indicates a low corrosion rate. In addition, the electrochemical testing indicated passivation behaviour which was further supported by the partial stabilisation of current density and overall low current densities (in the order of 10 -6 A/cm 2 ). The OCP measurement also described a passivation behaviour with an increase in the corrosion potential and a stabilised curve over time.Overall, from the experimental results, no significant evidence of crevice corrosion was observed under the testing conditions indicating that both CP Ti and the Ti alloy are not sensitive to crevice corrosion.iii

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Corrosion behaviour of porous Ti–39Nb alloy for biomedical applications

Cited by 108 publications

References 50 publications

Corrosion of Ti35Zr28Nb in Hanks’ solution and 3.5 wt% NaCl solution

Corrosion of Ti35Zr28Nb in Hanks’ solution and 3.5 wt% NaCl solution

Effect of surface mechanical attrition treatment on corrosion resistance of commercial pure titanium

Corrosion of Ti biomaterials

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