Passivity and corrosion behaviour of Ti-10Mo-4Zr and Ti-6Al-4V alloys after long-term ageing in Ringer’s solution at 37 °C

The influence of long-term ageing in the Ringer’s solution at 37 °C on the passivity and corrosion behaviour of Ti–10Mo–4Zr and Ti–6Al–4V is studied. XPS and AES results indicate that the chemical composition of the passive film formed on both alloys continuously changes with increasing ageing time....

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Bibliographic Details
Published in:Journal of solid state electrochemistry 2017-05, Vol.21 (5), p.1445-1455
Main Authors: Heintz, Olivier, Vignal, Vincent, Krawiec, Halina, Loch, Joanna
Format: Article
Language:English
Subjects:
Aging
Aging (metallurgy)
Analytical Chemistry
Cathodic polarization
Characterization and Evaluation of Materials
Chemical composition
Chemistry
Chemistry and Materials Science
Condensed Matter Physics
Corrosion
Corrosion resistance
Electrochemistry
Energy Storage
Film thickness
Original Paper
Passivity
Physical Chemistry
Titanium base alloys
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Summary:The influence of long-term ageing in the Ringer’s solution at 37 °C on the passivity and corrosion behaviour of Ti–10Mo–4Zr and Ti–6Al–4V is studied. XPS and AES results indicate that the chemical composition of the passive film formed on both alloys continuously changes with increasing ageing time. The passive film thickness increases, but a threshold value is reached at 780 and 1006 days of ageing. The current density in the passive range and in the cathodic branch of polarization curves drops after long-term ageing. In addition, the polarization resistance derived from impedance measurements increases by two orders of magnitude. These results show that the corrosion resistance of both alloys after long-term ageing is significantly improved.
ISSN:1432-8488
1433-0768
DOI:10.1007/s10008-017-3506-6