Critical conditions for pit initiation and growth of austenitic stainless steels

M. Al Ameri, Y. Yi, P. Cho, S. Al Saadi, C. Jang, Philip Beeley

    Research output: Contribution to journalArticlepeer-review

    27 Scopus citations

    Abstract

    The pitting behaviour of 316 stainless steel in NaCl solution was investigated using potentiodynamic (PD) and potentiostatic (PS) polarization. Tests with the mode change from PD to PS at potentials close to the pitting potential showed that the potential could play a role in the stable pitting by maintaining the pit stability product. The metastable pit growth was studied by changing the mode at potentials far below the pitting potential and by characterizing the first current density spikes. The results suggested that the cumulative electric charge density governs the metastable pit initiation as a critical condition.

    Original languageBritish English
    Pages (from-to)209-216
    Number of pages8
    JournalCorrosion Science
    Volume92
    DOIs
    StatePublished - 1 Mar 2015

    Keywords

    • A. Stainless steel
    • B. Polarization
    • C. Pittingcorrosion

    Fingerprint

    Dive into the research topics of 'Critical conditions for pit initiation and growth of austenitic stainless steels'. Together they form a unique fingerprint.

    Cite this