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Corrosion fatigue and electrochemical behavior of superelastic Ti-Nb-Ta alloy for medical implants under cyclic load conditions

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Zhukova, Y. S., Pustov, Y. A., Konopatsky, A. S., Dubinskiy, S. M., Filonov, M. R. et Brailovski, V.. 2015. « Corrosion fatigue and electrochemical behavior of superelastic Ti-Nb-Ta alloy for medical implants under cyclic load conditions ». [Conference paper]. Materials Today: Proceedings, vol. 2, nº Supp. 3. S991-S994.
Compte des citations dans Scopus : 5.

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Abstract

The aim of the present work was to study corrosion and electrochemical behavior of Ti-22Nb-6Ta (at. %) superelastic alloy in comparison with commercially pure titanium (cp-Ti) under simulated service conditions of load-bearing bone implants, i.e. under cyclic load in simulated body fluid environment. Open circuit potential (OCP) measurements were carried out on wire samples in Hank’s solution at 37°C applying bending load (maximum induced strain 0.8 %) up to 75×103 cycles or sample failure. It is shown that Ti-22Nb-6Ta alloy is superior to cp-Ti in terms of corrosion fatigue behavior. In particular, it possesses higher OCP values and its passive oxide film is more resistant to the impact of cyclic loading; fatigue life of the alloy is longer.

Item Type: Peer reviewed article published in a journal
Additional Information: Thématique : International Conference on Martensitic Transformations, ICOMAT-2014
Professor:
Professor
Brailovski, Vladimir
Affiliation: Génie mécanique
Date Deposited: 04 Feb 2016 21:09
Last Modified: 17 May 2016 14:06
URI: http://espace2.etsmtl.ca/id/eprint/12277

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