Electrochemical Noise Data: Analysis, Interpretation and Presentation

Abstract Electrochemical techniques for the assessment of corrosion processes have been widely adopted for many years. Traditional techniques typically use an applied voltage signal and the current response is monitored. This enables an estimation of the corrosion rate to be made. Recent studies have used the technique of Electrochemical Noise, which involves monitoring the spontaneous fluctuations in potential and current, in the absence of an applied signal. This approach has certain advantages, particularly in that the spontaneous evolution of the corrosion process(es) may be studied. Some of the more commonly used methods for data analysis and interpretation are demonstrated, along with guidelines as to how the data may be best presented.