The electrochemical behaviour of AISI 316L steel and its constituent metals in simulated Kraft digester white liquor at 170 °C has been studied by registering slow scan rate voltammograms and impedance spectra at the corrosion potential. Interpretation of the results in terms of two approaches – the Mixed-Conduction Model for passive films and a two-step dissolution reaction – allowed for the estimation of corrosion currents and polarisation resistances as depending on the material and electrolyte medium. Tentative conclusions on the effect of sulphur-containing species in the white liquor on the corrosion mechanism of the studied materials are drawn.
- Stainless steel
- Cyclic voltammetry
- Passive films
- Reactor conditions
Betova, I., Bojinov, M., Hyökyvirta, O., & Saario, T. (2010). Effect of sulphide on the corrosion behaviour of AISI 316L stainless steel and its constituent elements in simulated Kraft digester conditions. Corrosion Science, 52(4), 1499-1507. https://doi.org/10.1016/j.corsci.2009.12.034