TEST PIECE FOR MONITORING PITTING CORROSION, APPARATUS FOR MONITORING PITTING CORROSION AND METHOD FOR MONITORING PITTING CORROSION

摘要

The present invention addresses the problem of providing a novel pitting corrosion monitoring technique which can detect even the influence of a microorganism. The present invention provides a test piece for use in pitting corrosion monitoring for estimating the progress of pitting corrosion of a metal member in an aqueous system, said test piece comprising: a cathode part which is made of the same metal material as that of the metal member and which has a rugged area on at least a part of the surface; and an anode part which is electrically insulated from the cathode part and which is made of the same metal material as that of the cathode part. The test piece can detect the influence of a microorganism in the cathode part and therefore can catch cathodic reaction with a higher sensitivity, thus enabling more precise pitting corrosion monitoring.