The surface ratio of the electrode and the smallest electrode where that opposite is largest it is larger than 1, in order for the area

摘要

PROBLEM TO BE SOLVED: To provide a corrosion sensor which effectively functions on pitting corrosion.;SOLUTION: A plurality of electrodes with different areas comprising test samples are prepared, and immersed in an electrolytic solution to determine respective current-time characteristics available when the electrodes are retained at a constant potential. The presence or absence of local corrosion is identified by examining area dependence of the current density.;COPYRIGHT: (C)2004,JPO