RT info:eu-repo/semantics/article
T1 Corrosion behaviour of new quaternary ZrNbTiAl alloys in simulated physiological solution using electrochemical techniques and surface analysis methods
A1 Souto, Ricardo Manuel
A1 Chelariu, R.
A1 Trincă, Lucia Carmen
A1 Munteanu, Corneliu
A1 Bolat, Georgiana
A1 Sutiman, D.
A1 Mareci, Daniel
K1 ZrTiNbAl quaternary alloys
K1 Biomaterial
K1 Corrosion resistance
K1 Ringer’s physiological solution
K1 Electrochemical techniques
AB The potential biomedical application of three new quaternary Zr alloys, namely Zr6Ti15Nb4Al, Zr32Ti15Nb4Al, and Zr49Ti15Nb4Al, was evaluated in vitro using electrochemical methods complemented with surface analysis of corrosion resistance. Cyclic potentiodynamic polarization (CCP) and electrochemical impedance spectroscopy (EIS) tests were performed in Ringer’s solution at 37 ºC. The electrochemical behavior of the ZrTiNbAl quaternary alloys was consistent with the formation of passivating oxide films on the surfaces of these materials. Localized breakdown of the oxide layer occurred on Zr6Ti15Nb4Al and Zr32Ti15Nb4Al alloys subjected to positive anodic polarization, a feature confirmed by scanning electron microscopy (SEM) on retrieved samples. The Zr49Ti15Nb4Al alloy, which had the highest titanium (49 wt.%) content, exhibited a larger passive range in the polarization curve and was immune to localized corrosion breakdown in a simulated physiological solution for the range of polarizations that can occur in the human body
YR 2017
FD 2017
LK http://riull.ull.es/xmlui/handle/915/18996
UL http://riull.ull.es/xmlui/handle/915/18996
LA en
DS Repositorio institucional de la Universidad de La Laguna
RD 18-nov-2024