Corrosion resistance improvement of 6061 aluminum alloy using anodizing process

  • Zuraidawani Che Daud (Faculty of Mechanical Engineering and Technology, Universiti Malaysia Perlis (UniMAP)) ;
  • Muhammad Faidzi Shukri (Faculty of Mechanical Engineering and Technology, Universiti Malaysia Perlis (UniMAP)) ;
  • Mohd Nazree Derman (Faculty of Mechanical Engineering and Technology, Universiti Malaysia Perlis (UniMAP))
  • Received : 2023.08.02
  • Accepted : 2024.01.04
  • Published : 2024.06.25


Aluminum alloy is a material that is frequently used in the aerospace and transportation industries due to its high mechanical and corrosion resistance qualities. Unfortunately, aluminum alloys are prone to corrosion, limiting their application in some harsh situations such as when submerged in aqueous environments. The purpose of this study is to investigate how anodizing can increase the corrosion resistance of 6061 Aluminum alloy. The anodizing process was carried out using two different parameters which are voltage (5V, 10V, 15V) and electrolyte sulfuric acid (H2SO4) concentration (0.3M, 0.5M) for 1 hour. The anodized samples were performed using several analyses such as X-ray diffraction (XRD) analysis, morphology analysis, and corrosion test. From this study, it is found that the difference in anodizing parameters affects the corrosion resistance of the samples. Sample anodized at 15V, 0.5M gives the best corrosion resistance.



The authors would like to acknowledge to Centre of Excellence for Frontier Materials Research (FrontMate) and the Faculty of Mechanical Engineering and Technology, Universiti Malaysia Perlis (UniMAP) for providing facilities and testing this project.


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