The initiation phase of crevice corrosion is characterized by an increase in metal ion concentration in the crevice solution and the subsequent lowering of the solution pH by hydrolysis. A solution potential gradient drives cations from the bulk into the crevice to maintain electroneutrality. Due to the geometry of the crevice, mass transfer is restricted and the crevice solution becomes aggressive with the subsequent initiation of corrosion. Since knowledge of the initiation process is critical in preventing crevice corrosion, the solution chemistry in the crevice during the initiation process was studied. The objective of this work was to determine the metal cation concentration and to correlate this with the corrosion morphology during the initiation of crevice corrosion.
|Original language||English (US)|
|Number of pages||1|
|Journal||Electrochemical Society Extended Abstracts|
|State||Published - Jan 1 1985|
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