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NonCommercial-ShareAlike 4.0 International
https://creativecommons.org/licenses/by-nc-sa/4.0/
The blue curve represents a cathodic reaction and the
red curve is an anodic reaction. Corrosion occurs at the potential and
rate indicated by the intersection of the two lines.
This will be the corrosion rate
if the metal had been corroding freely
This will be the corrosion rate
if the metal had been passivated