The potential and current oscillations during pitting corrosion of steel in sodium chloride (NaCl) solution were studied. Detailed analyses using numerical diagnostics developed to characterize complex time series clearly showed 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.
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Rubio-García et al. (2003) studied this question.
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