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2016 | 129 | 4 | 742-746
Article title

Improvement of Corrosion Properties of AL-4.08MG Alloy in Seawater by Two Step Anodizing in Electrolyte with Varied Concentration

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Aluminum is extremely active metal on the surface of which the oxide is instantly created when exposed to atmosphere. This naturally generated film has little industrial value as it has thickness as thin as 10 nm. Hence, oxide films are often made thick by electrochemical method. The characteristics of the films can be controlled by varying process parameters including composition, concentration, additives, solution temperature, voltage etc. These films have high hardness and excellent corrosion resistance. Therefore, they are receiving great amount of attention in both academic and industrial areas with their diverse applicability. In this paper, the optimal electrolyte concentration was investigated to produce oxide film with excellent corrosion resistance. The results reveal that Al₂O₃ oxide film was created on the surface for all tested electrolyte concentrations. Moreover, the films have a considerably lower corrosion current density than that of the substrate, implying excellent corrosion resistance.
  • Kunsan National University, Department of Power System Engineering, Daehak-ro 558, Gunsan-si, Jeonbuk, Korea
  • Mokpo National Maritime University, Division of Marine Engineering, Haeyangdaehak-Ro 91 Mokpo-si, Korea
  • [1] H. Masuda, F. Hasegwa, S. Ono, J. Electrochem. Soc. 144, L127 (1997), doi: 10.1149/1.1837634
  • [2] F. Keller, M.S. Hunter, D.L. Robinson, J. Electrochem. Soc. 100, 411 (1953), doi: 10.1149/1.2781142
  • [3] J.W. Diggle, T.C. Downie, C.W. Goulding, Chem. Rev. 69, 365 (1969), doi: 10.1021/cr60259a005
  • [4] G.C. Wood, P. Skeldon, G.E. Thompson, K. Shimizu, J. Electrochem. Soc. 143, 74 (1996), doi: 10.1149/1.1836389
  • [5] Y. Xu, G.E. Thomson, G.C. Wood, Trans. Inst. Met. Finish. 63, 98 (1985)
  • [6] A. Li, F. Muller, A. Bimer, K. Nielsch, U. Gosele, J. Appl. Phys. 84, 6023 (1998), doi: 10.1063/1.368911
  • [7] H. Masuda, K. Fukuda, Science 268, 1466 (1995), doi: 10.1126/science.268.5216.1466
  • [8] X. Nie, E.I. Meltis, J.C. Jiang, A. Leyland, A.L. Yerokin, A. Matthews, Surf. Coat. Technol. 149, 245 (2002), doi: 10.1016/S0257-8972(01)01453-0
  • [9] E.K. Joo, Ph.D Thesis, Kookmin University, 2002 (in Korean)
  • [10] T.P. Hoar, J. Yahalom, J. Electrochem. Soc. 110, 614 (1963), doi: 10.1149/1.2425839
  • [11] M. Pourbaix, Atlas of Electrochemical Equilibria in Aqueous Solutions, National Association of Corrosion Engineers, Houston 1974
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