The potential and current oscillations during pitting corrosion of steel in NaCl solution were studied. Detailed analysis using numerical diagnostics developed to characterize complex time series clearly shows 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.

Subject
Materials, Voltage, Noise measurements, Electrochemical noise, Plasma, Oscillation, Sodium chloride solution, Electrochemical current, Film formation, Electrochemical data, Steel, Pitting, Electrode potential
Keywords:
electrochemical noise, chaos, pitting corrosion, steel
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1999
Association for Materials Protection and Performance (AMPP)
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