Corrosion mechanism
Steel corrosion

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TBA1054 V2 Article

Corrosion mechanism


Steel corrosion

Author : Adrien WAQUET

Publication date: September 10, 2024 | Lire en français

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2. Corrosion mechanism

This section presents the different mechanisms of corrosion.

2.1 General

Iron is highly sensitive to an oxygenated active medium, and its surface becomes a zone of intense ionic exchange, between one pole ( ), the anode, and one pole ( + ), the cathode. We then progressively observe the "consumption" of the anode according to the following reaction:

FeFe +++2e1/ 2O2+H2O+2e2OH

...

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