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The measurement of the corrosion potential, often called Ecorr, is a relatively simple concept, with the underlying principle widely used in industry for monitoring reinforcing steel corrosion in concrete and structures such as buried pipelines under cathodic protection. monitoring of anodic protection systems is a further application area. Changes in corrosion potential can also give an indication of active/passive behavior in stainless steel. When viewed in the context of Pourbaix diagrams, the corrosion potential can additionally give a fundamental indication of the thermodynamic corrosion risk.
