[Zurück]

P. Linhardt, G. Ball, E. Schlemmer:
"Electrochemical investigation of chloride induced pitting of stainless steel under the influence of a magnetic field";
Corrosion Science, 47 (2005), S. 1599 - 1603.

The effect of a mangnetic field on chloride induced pitting of stainless steel was studied by potentiodynamic measurements in aqueous NaCl solution in a cylindrical cell with the field perpenticular to the surface under test. Compared to identical tests without field, a significant shift of the repasivation potential E_r in the cathodic direction was observed, together with the formation of small pits at high density in the periphery of the electrode. These pits develop under the influence of a vortical flow induced by the manganetohydrodynamic effect. The shift of E_r is explained as the consequence of the occluded morphology of these pits.

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