【摘 要】
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A metal surface with a submerged cavity,as often happens under conditions of cathodic protection,electrodepositing,electrocoagulation technologyand local corrosion process [1-5].The presence of caviti
【机 构】
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Center for Precision Engineering,Guangzhou Institute of Advanced Technology Chinese Academy of Scien
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A metal surface with a submerged cavity,as often happens under conditions of cathodic protection,electrodepositing,electrocoagulation technologyand local corrosion process [1-5].The presence of cavities strongly accentuates the spatial non-uniformity of the potential and current distributions on the metal surface and within the depth of the cavity.Meanwhile,under gas evolution or film formation/deposition,the presence of growing bubbles and films would further affect the current-potential characteristics of an electrochemical cell.The additive effects,namely the gas evolution or film formation occurring inside cavities,can lead to some unexpected potential distribution characteristics highlighted in this study.
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