Journal of Applied Electrochemistry

, Volume 20, Issue 6, pp 986–988 | Cite as

The effect of the type of electric current on the cathodic corrosion of aluminium

  • E. Sabeva
  • I. Dobrewsky
  • P. Dineff
Papers

Abstract

A comparative experimental study on the cathodic corrosion of aluminium in 0.52 M sodium chloride distilled water solutions is carried out. The electrolysis is conducted using a single half-cycle rectified, direct or industrial frequency current. Characteristic relationships concerning the cathodic corrosion are noted. Attention is drawn to the higher rates of cathodic corrosion observed on electrolysis with single half-cycle rectified current which is combined with lower energy costs.

Keywords

Sodium Aluminium Chloride Physical Chemistry Experimental Study 

Nomenclature

wk1

cathodic corrosion rate for direct current electrolysis (g s−1 m−2)

wk2

cathodic corrosion rate for single half-cycle rectified current electrolysis (g s−1 m−2)

wa

anodic dissolution rate (g s−1 m−2)

wF

theoretical Faradaic dissolution rate (g s−1 m−2)

w

dissolution rate for alternating current electrolysis (g s−1 m−2)

j

electric current density (A m−2)

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References

  1. [1]
    I. Dobrevsky, E. Sabeva and P. Dinev,Chimia i Industria 4 (1984) 160.Google Scholar
  2. [2]
    P. Dineff. Dissertation, Higher Institute of Mechanical and Electrical Engineering, Sofia (1978).Google Scholar
  3. [3]
    Bulg. Pat. No. 276171 (1979).Google Scholar
  4. [4]
    Bulg. Pat. No. 35415 (1979).Google Scholar
  5. [5]
    Bulg. Pat. No. 27618 (1979).Google Scholar
  6. [6]
    USSR Pat. No. 645943 (1979).Google Scholar
  7. [7]
    R. Sh. Shafeev and M. V. Tavdishvili,Technologia dobychi i obogash chenii poleznych izkopaemych Gruzii, (1975) 104.Google Scholar
  8. [8]
    Yu. I. Michailovskii,sb. Korozii metalov i splavov, Moskva (1963) 222.Google Scholar
  9. [9]
    Van de Ven and H. Koelmans,J. Electrochem. Soc. 123 (1976) 143.Google Scholar
  10. [10]
    B. P. Caldwell and V. J. Albano,Trans. Electrochem. Soc. 76 (1939) 271.Google Scholar

Copyright information

© Chapman and Hall Ltd. 1990

Authors and Affiliations

  • E. Sabeva
    • 1
  • I. Dobrewsky
    • 1
  • P. Dineff
    • 2
  1. 1.Higher Institute of Chemical TechnologyBourgasBulgaria
  2. 2.Higher Institute of Mechanical and Electrical EngineeringSofiaBulgaria

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