Journal
MATERIALS SCIENCE & ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS
Volume 46, Issue -, Pages 246-252Publisher
ELSEVIER
DOI: 10.1016/j.msec.2014.10.037
Keywords
Ti-Cu-Sn alloy; Corrosion; Polarization; Electrochemical impedance spectroscopy
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Funding
- National Science Council Taiwan R.O.C. [NSC 99-2622-E-020-003-CC3, 101-2622-E-020-006-CO]
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The aim of this study was to investigate the effects of 5n content on the microstructure and corrosion resistance of Ti7CuxSn (x = 0-5 wt.%) samples. The corrosion tests were carried out in 0.9 wt.% NaCl solution at 25 degrees C. The electrochemical corrosion behavior of the Ti7CuxSn alloy samples was evaluated using potentiodynamic polarization curves, electrochemical impedance spectroscopy (EIS), and equivalent circuit analysis. The resulting impedance parameters and polarization curves showed that adding Sn improved the electrochemical corrosion behavior of the Ti7CuxSn alloy. The Ti7CuxSn alloy samples were composed of a dual-layer oxide consisting of an inner barrier layer and an outer porous layer. (C) 2014 Elsevier B.V. All rights reserved.
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