Answer to Question #170369 in General Chemistry for Surendra

Question

Steel plate is in contact with aluminium. Give the scheme of electrochemical corrosion in acidic medium and write equations for the reactions that occur (anode and cathode reactions).please give me solution under 30 miniutes

Answer 1

Galvanic Corrosion Prevention

1. Select metals/alloys as close together as possible in the galvanic series.
2. Avoid unfavorable area effect of a small anode and large cathode.
3. Insulate dissimilar metals wherever practical.
4. Apply coatings with caution. ...
5. Avoid threaded joints for materials far apart in the galvanic series.