Does Electrochemical Potential Affect Corrosion Rates in Metals?

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The discussion focuses on the factors influencing the rate of corrosion in metals, particularly the significance of electrochemical potential (E(V)) in corrosion reactions. It highlights two main types of corrosion: chemical combination (oxidation) and electrolysis (electroplating). Key variables affecting corrosion rates include applied voltage, the inherent electrochemical potential between metals, and the mobility of anions and cations, which encompasses dissolution, precipitation, and diffusion rates. Additionally, the chemistry of the electrolyte is identified as a crucial factor that can impact corrosion processes.
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I am pondering over how the rate of corrosion in metals are effected. Does E(V) of the reactions play an important part in this?
 
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There are different processes commonly called corrosion.

One is chemical combination also called oxidation or in a faster mode burning.

The other is electrolysis sometimes called electroplating.

What you want to know is not clear.
 
supasupa said:
I am pondering over how the rate of corrosion in metals are effected. Does E(V) of the reactions play an important part in this?
There are a number of variables which affect corrosion rates, which is somewhat related to the electric current. Applied voltage is one variable, in addition to the inherent electrochemical potential between the cathodic and anodic metals.

Anion or cation mobility (including dissolution/precipitation/diffusion rates) may be a controlling factor. There may be intermediate chemical states which affect corrosion rates.

Electrolyte chemistry is yet another factor.
 

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