DIRECT EVIDENCE FOR THE CATHODIC DEPOLARIZATION THEORY OF BACTERIAL CORROSION

Abstract

Direct evidence has been obtained to substantiate the cathodic depolarization theory of von Wolzogen Kuhr and van der Vlugt, which involves the removal of hydrogen and reduction of an electron acceptor (benzyl viologen) at the cathode by Desulfovibrio desulfuricans and liberation of iron at the anode. Direct measurement of the cathodic depolarization current has been made and its levels appear to be too low to account for the corrosion of iron in the field by this mechanism. Aluminum alloys can also be cathodically depolarized.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1965
Accession Number
AD0476409

Entities

People

  • Warren P. Iverson

Organizations

  • United States Army Biological Warfare Laboratories

Tags

DTIC Thesaurus Topics

  • Aluminum
  • Aluminum Alloys
  • Atmospheres
  • Bacteria
  • Biological Laboratories
  • Corrosion
  • Corrosion Resistance
  • Cyanides
  • Depolarization
  • Electron Acceptors
  • Electrons
  • Hydrogen
  • Iron Oxides
  • Measurement
  • Metals
  • Oxides
  • Redox Indicators

Readers

  • Combustion Dynamics and Shock Wave Physics.
  • Materials Science and Engineering.
  • Microbial Pathology

Technology Areas

  • Microelectronics