Surface analysis and corrosion resistance of a new titanium base alloy in simulated body fluids

被引：111
|
作者：
Vasilescu, C. [1 ]
Drob, S. I. [1 ]
Neacsu, E. I. [1 ]
Mirza Rosca, J. C. [2 ]
机构：
[1] Romanian Acad, Inst Phys Chem Ilie Murgulescu, Bucharest 060021, Romania
[2] Las Palmas de Gran Canaria Univ, Tafira 35017, Spain
来源：
CORROSION SCIENCE | 2012年 / 65卷
关键词：
Alloy; Cyclic voltammetry; EIS; XPS; Passive films; RINGERS LACTATE SOLUTION; ELECTROCHEMICAL CORROSION; IMPEDANCE SPECTROSCOPY; TI-15ZR-4NB-4TA ALLOY; CALCIUM-PHOSPHATE; FATIGUE STRENGTH; BEHAVIOR; TI-6AL-4V; TI; TI-13NB-13ZR;
D O I：
10.1016/j.corsci.2012.08.042
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A new quaternary Ti-20Nb-10Zr-5Ta alloy with 3-near microstructure was obtained. Its native passive film composition and its modification and corrosion resistance after 2000 immersion hours in simulated biofluids were studied. The native film on the alloy surface contains TiO2, Nb2O5, ZrO2, Ta2O5 protective oxides as was demonstrated by XPS. After 2000 h, XPS revealed the presence of same oxides and calcium, phosphorous ions deposited from physiological solutions as hydroxyapatite. In Ringer and Ringer-Brown solutions, the new alloy presented low corrosion rates. Impedance data exhibited a passive film with two layers: an inner, barrier layer and an outer, porous layer. (C) 2012 Elsevier Ltd. All rights reserved.
引用
收藏
页码：431 / 440
页数：10
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