In this study, an electrochemical syringe droplet cell was developed and used to evaluate the pitting corrosion resistance of AISI 304 stainless steel. The cell was also adapted to perform measurements in de-aerated environment, by means of continuous N2 injection. The results obtained with the syringe cells, in both conditions (aerated and de-aerated), were reproducible and free of crevice corrosion, since the cell configuration does not allow obtaining this condition. The proposed cell demonstrates coherency with data acquired using conventional cell arrangements, being a potential alternative to study pitting corrosion of passive metals.
Syringe cell to avoid crevice corrosion on stainless steels during potentiodynamic polarization testing
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José Calderón-Hernández, Caruline de Souza Carvalho Machado, Isolda Costa, Hercilio de Melo; Syringe cell to avoid crevice corrosion on stainless steels during potentiodynamic polarization testing. CORROSION 2021; 3925:. doi: https://doi.org/10.5006/3925
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