Electrochemical Noise Chaotic Analysis of NiCoAg Alloy in Hank Solution
Daniel Bahena, Ivonne Rosales, Oscar Sarmiento, R. Guardián, Carmina Menchaca‐Campos, Jorge Uruchurtu · International Journal of Corrosion · 2011
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.