The Objective Of The PresentWork Is To Study The Corrosion Behaviour Of Ni Al₂O₃ Coating Comparing With Other Types Of 2 3 Coatings SuchAs Ni PTFE, Nickel Coatings, Nickel Phosphorous Coatings, Chromium Coatings, Nickel Cobalt CoatingsAnd The Bare Metal. The Different Thickness Of Coatings Was Obtained By Adjusting Current Density And Deposition Time. The First Corrosion Test Conducted Is Salt Spray Corrosion Test. TheWeight LossWas Calculated.Among The Electro Deposition Process, The Ni Al2O3 Coatings Have Shown The Highest Hot Corrosion Resistance Followed By Ni-PTFE, Cr, Ni-Co, Ni-P, Ni CoatingsAnd The Bare Metal. Then The Optimum Thickness For Ni Al2O3 Was Obtained.

Key words: Corrosion, Corrosion Behaviour, Coating, Electro Deposition Process