How to understand the corrosion potential?

2021-01-11View Original

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Regarding the (self)corrosion potential: 1) The ability of multiple (or one) anodic reactions and multiple (or one) cathodic reactions to gain or lose electrons over a period of time in a macroscopic region； 2) The corrosion potential is a mixed potential, an unbalanced potential that continuously changes; it can currently only be measured, not calculated ； 3) The level of the corrosion potential does not indicate the magnitude of the corrosion current; there is little relationship between the corrosion potential and the corrosion current ； 4) Nevertheless, unless it is a resistance-controlled corrosion cell, the polarization curves of the cathodic and anodic reactions must intersect at one point, which is the corrosion potential and corrosion current. Is that correct? Please make corrections and additions.

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How to understand the corrosion potential?

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