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Electrochemical Corrosion Theory

  • Samuel A. Bradford

Abstract

The driving force for corrosion is the potential difference developed by the corrosion cell
$${{E}_{\text{cell}}}=E_{\text{red}}^{\text{cat}}-E_{\text{red}}^{\text{anode}}$$
(2-17)
However, the cell potential does not correctly predict the corrosion rate, and it is the corrosion rate that is the essential determiner of a metal’s suitability in a corrosive environment. Logically, if the cell potential is small, the corrosion rate will be low. On the other hand, a large cell potential does not necessarily mean that the metal must corrode badly. It may passivate, for example, and corrode at an extremely low rate.

Keywords

Corrosion Rate Polarization Curve Corrosion Potential Passive Film Concentration Polarization 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Van Nostrand Reinhold 1993

Authors and Affiliations

  • Samuel A. Bradford

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