Journal
CORROSION SCIENCE
Volume 51, Issue 10, Pages 2473-2482Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.corsci.2009.06.035
Keywords
Alloy; Titanium; EIS; Polarisation; Passive films
Funding
- FINEP [01.06.0243.00]
- FAPEMIG [CDS 12/03, CEX 1736/06]
- CNPq [520178/2006-8]
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The corrosion resistance of Ti and Ti-6Al-4V was investigated through electrochemical impedance spectroscopy, EIS, potentiodynamic polarisation curves and UV-Vis spectrophotometry. The tests were done in Hank solution at 25 degrees C and 37 degrees C. The EIS measurements were done at the open circuit potential at specific immersion times. An increase of the resistance as a function of the immersion time was observed, for Ti (at 25 degrees C and 37 degrees C), and for Ti-6Al-4V (at 25 degrees C), which was interpreted as the formation and growth of a passive film on the metallic surfaces. (C) 2009 Elsevier Ltd. All rights reserved.
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