Magnetic field effects on anodic polarisation behaviour of iron in neutral aqueous solutions

Author:    

Publisher: Maney Publishing

ISSN: 0007-0599

Source: British Corrosion Journal, Vol.35, Iss.3, 2000-03, pp. : 224-228

Disclaimer: Any content in publications that violate the sovereignty, the constitution or regulations of the PRC is not accepted or approved by CNPIEC.

Previous Menu Next

Abstract

The presence of a magnetic induction field with a flux density of 0·4 T caused the anodic active-passive transition potential of iron in neutral aqueous solutions of sodium sulphate to move in the noble direction and resulted in a reduction of the passive potential range. Anodic current densities at the active-passive transition potential and in the passive potential range increased in the presence of the magnetic field. There was a synergistic effect between the magnetic field and the presence of chloride in solution on the breakdown of iron passivity.