Corrosion behavior of new quaternary ZrNbTiAl alloys in simulated physiological solution using electrochemical techniques and surface analysis methods

被引:41
作者
Chelariu, R. [1 ]
Trinca, L. C. [2 ]
Munteanu, C. [3 ]
Bolat, G. [4 ]
Sutiman, D. [1 ]
Mareci, D. [4 ]
Souto, R. M. [5 ,6 ]
机构
[1] Tech Univ Gheorghe Asachi Iasi, Fac Mat Sci, Iasi 700050, Romania
[2] Ion Ionescu de la Brad Univ Agr Sci & Vet Med, Fac Hort, Dept Sci, 3 Mihail Sadoveanu Alley, Iasi 700490, Romania
[3] Tech Univ Gheorghe Asachi Iasi, Fac Mech Engn, Iasi 700050, Romania
[4] Tech Univ Gheorghe Asachi Iasi, Fac Chem Engn & Environm Protect, Iasi 700050, Romania
[5] Univ La Laguna, Dept Phys Chem, E-38200 Tenerife, Canary Islands, Spain
[6] Univ La Laguna, Inst Mat Sci & Nanotechnol, E-38200 Tenerife, Canary Islands, Spain
关键词
ZrTiNbAl quaternary alloys; Biomaterial; Corrosion resistance; Ringer's physiological solution; Electrochemical techniques; ZRTI ALLOYS; IN-VITRO; MAGNETIC-SUSCEPTIBILITY; ZIRCONIUM ALLOYS; PITTING CORROSION; BINARY-ALLOYS; ANODIC OXIDES; TI ALLOYS; TITANIUM; RESISTANCE;
D O I
10.1016/j.electacta.2017.07.157
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
081704 ;
摘要
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 degrees C. 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. (C) 2017 Elsevier Ltd. All rights reserved.
引用
收藏
页码:368 / 375
页数:8
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