Wentao,
The Pourbaix diagrams are in reference to Equilibrium Potential Eo and pH.
They only offer a thermodynamic description of the metal-solution system, that is to say: a material corrodes or does not corrode, or it is passive or not passive or finally: it remains immune or not. They indicate the final state of the system, but do not mention the speed with which this state is reached.
It will not tell you anything about kinetics, that is, the speed at which corrosion will occur.
A very interesting book is: Corrosion and Protection, by Einar Bardal (2003), (Springer)
Regards,
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[Patricia Silvana] [Carrizo]
[Ms.]
[Chemical Engineer]
[Archaeometallurgy Area - UTN FRM]
[Mendoza] [Argentina]
[+542615577229]
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Original Message:
Sent: 05-17-2021 14:13
From: Wentao Qin
Subject: Potential in Pourbaix Diagrams
Dear All,
I would appreciate your help with the following questions
1. Is the potential in a Pourbaix diagram measured always relative to a standard reference such as the SHE?
2. Could you recommend a text or paper to read about this?
Thanks,
Wentao
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Wentao Qin
Engineer
On Semiconductor
Phoenix AZ
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