Effect of Corrosion Product on the Electrochemical Behavior of Zn, Zn-Al and Al-Mg-Si Alloy Coated Steel

  • HARIYANTI
    Department of Metallurgy and Ceramics Science, Tokyo Institute of Technology
  • YADAV Amar P.
    Central Department of Chemistry, Tribhuvan University
  • NISHIKATA Atsushi
    Department of Metallurgy and Ceramics Science, Tokyo Institute of Technology
  • TSURU Tooru
    Department of Metallurgy and Ceramics Science, Tokyo Institute of Technology

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抄録

The corrosion products formed on Zn, Zn-55Al and Al-8.2Mg-4.8Si alloys coating has been investigated by potentiodynamic polarization in a mixture of 0.5 M Na2SO4 and 0.1 M NaCl solution. The anodic current density on Zn and Zn-55Al alloys coating show the existence of dissolution indicated that Zn and Zn-55Al alloy continued to dissolve across the corrosion product formed. The existence of corrosion product on Al-8.2Mg-4.8Si alloys coating shifted the polarization curves to more noble direction and inhibit the dissolution.

収録刊行物

  • Electrochemistry

    Electrochemistry 80 (4), 218-221, 2012

    公益社団法人 電気化学会

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