Electrochemical theory of corrosion

Electrochemical theory of corrosion:

  • The electrochemical theory of corrosion is a scientific explanation of the corrosion process based on the principles of electrochemistry. 
  • According to this theory, corrosion is an electrochemical reaction that occurs when metal ions are transferred from a metal surface to an electrolyte. 
  • The metal ions react with the electrolyte to form corrosion products, which can lead to the gradual deterioration of the metal.
  • The electrochemical theory of corrosion is based on the principle that metal surfaces are anodic, meaning they are capable of losing electrons, and that the electrolyte is cathodic, meaning it is capable of accepting electrons. 
  • When the anodic and cathodic regions come into contact, an electric current flows, causing the transfer of metal ions from the anode to the cathode. 
  • This reaction is what causes the corrosion of the metal.