corrosion rate

Also contains definition of: corrosion current

The amount of substance transferred per unit time at a specified surface. Using Faraday's law, the corrosion rate, $v cor$ , can be formally expressed as an electric current which at the corrosion potential is called the corrosion current, $I cor$ , e.g. for the anodic dissolution of one component of a material with $v cor$ in $mol s −1$ and $I cor$ in $A$ one obtains $I cor = n F v cor$ , $n$ being the charge number of the electrode reaction and $F$ the Faraday constant.

Source:

PAC, 1989, 61, 19 (Electrochemical corrosion nomenclature (Recommendations 1988)) on page 20

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Cite as:
IUPAC. Compendium of Chemical Terminology, 2nd ed. (the "Gold Book"). Compiled by A. D. McNaught and A. Wilkinson. Blackwell Scientific Publications, Oxford (1997). XML on-line corrected version: http://goldbook.iupac.org (2006-) created by M. Nic, J. Jirat, B. Kosata; updates compiled by A. Jenkins. ISBN 0-9678550-9-8. https://doi.org/10.1351/goldbook.

Last update: 2014-02-24; version: 2.3.3.

DOI of this term: https://doi.org/10.1351/goldbook.C01358.

Original PDF version: http://www.iupac.org/goldbook/C01358.pdf. The PDF version is out of date and is provided for reference purposes only. For some entries, the PDF version may be unavailable.

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