ANALYSIS OF SPONTANEOUS ELECTROCHEMICAL NOISE FOR CORROSION STUDIES

Spontaneous electrochemical noise can be a rich source of information concerning the processes simultaneously occurring at a corroding interface. But the combination of deterministic and stochastic events which make up noise signatures is often complicated by the specific nature of the systems being investigated. This paper describes a study of voltage noise fluctuations recorded during the free corrosion of commercial aluminium sheet material and compares typical results obtained with different noise analysis techniques.