Artículos de revistas
In situ impedance spectroscopy study of the electrochemical corrosion of Ti and Ti-6Al-4V in simulated body fluid at 25 degrees C and 37 degrees C
Fecha
2009Registro en:
CORROSION SCIENCE, v.51, n.10, p.2473-2482, 2009
0010-938X
10.1016/j.corsci.2009.06.035
Autor
ALVES, V. A.
REIS, R. Q.
SANTOS, I. C. B.
SOUZA, D. G.
GONCALVES, T. de F.
SILVA, Marcelo de Assumpção Pereira da
ROSSI, A.
SILVA, L. A. da
Institución
Resumen
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.