Abstract
Abstract Inhibition effect of benzotriazole (BTAH) onto copper surface has been studied by Cyclic Voltammetry (CV), Electrochemical Noise (EN) and Scanning Electron Microscopy (SEM). Results indicated that EN generated in high concentration of BTAH had small noise amplitude and large positive potential-drift, while the low concentration of BTAH possessed large potential oscillation amplitude and little potential-drift. New parameter of corrosion active energy C AE is proposed to further study the relationship between the EN feature and corrosion rate. The good correspondence between C AE and corrosion rate offers a novel criterion to in-situ monitor the corrosion severity and inhibition efficiency.
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