in corrosion study, Ba factor of tafel fit is large . what is mean?

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Pierluigi Traverso

Dear Dr. Yazid Amri ,

as I wrote in another similar question, I suggest you to have a look at the following, interesting documents:

-Application Note - Getting Started with Electrochemical Corrosion Measurement by Gamry Instruments

Available at: https://www.gamry.com/assets/Application-Notes/Getting-Started-with-Electrochemical-Corrosion-Measurement.pdf

-Tafel Plot and Evans Diagram by Palmsens

Available at: https://www.palmsens.com/knowledgebase-article/tafel-plot-and-evans-diagram/

Enjoy reading and my best regards, Pierluigi Traverso.

Stefan Krakowiak

I would limit the scope of potentials considered for analysis. It is difficult to talk about passivation control when the current flowing in the system reaches 1A. Rather, there are some diffusion limitations on the anode side (corrosion products formed on the surface of the tested material, etc.).

stefan