Electrochemical Noise Chaotic Analysis of NiCoAg Alloy in Hank Solution

The potential and current oscillations during corrosion of NiCoAg alloy in Hank solution were studied. Detailed nonlinear fractal analyses were used to characterize complex time series clearly showing that the irregularity in these time series corresponds to deterministic chaos rather than to random...

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Bibliographic Details
Main Authors: D. Bahena, I. Rosales, O. Sarmiento, R. Guardián, C. Menchaca, J. Uruchurtu
Format: Article
Language:English
Published: Hindawi Limited 2011-01-01
Series:International Journal of Corrosion
Online Access:http://dx.doi.org/10.1155/2011/491564
Description
Summary:The potential and current oscillations during corrosion of NiCoAg alloy in Hank solution were studied. Detailed nonlinear fractal analyses were used to characterize complex time series clearly showing that the irregularity in these time series corresponds to deterministic chaos rather than to random noise. The chaotic oscillations were characterized by power spectral densities, phase space, and Lyapunov exponents. Electrochemical impedance was also applied the fractal dimensions for the corroded surface was obtained, and a corrosion mechanism was proposed.
ISSN:1687-9325
1687-9333