write a short note on galvanic corrosion
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A Brief Note on Galvanic Corrosion:
- The corrosion which occurs when two metals having different electrode potentials come in contact with one another in an electrolyte is known as galvanic corrosion.
- It is also known as bimetallic or dissimilar metal corrosion.
- In Galvanic corrosion, one metal acts as a cathode, and the other one acts as an anode.
- An Electrochemical reaction occurs and the anode starts to dissolve into the electrolyte.
- Due to the fast corrosion of anode metals, the corrosion of cathode metals becomes slower or even stops.
- Galvanic Corrosion can be prevented by using Electrical Insulation between the two Metals or a galvanic insulator.
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