P. Jakupi, J.J. Noël
Crevice corrosion of alloy-22 was studied galvanostatically (10–200lA) at 120°C–176°C in 5 M NaCl. Corrosion damage was analyzed by confocal laser scanning microscopy to obtain penetration profiles. Three-dimensional images demonstrate that damage morphologies varied with applied current. At low applied currents (670 lA), propagation predominantly leads to penetration into the alloy, whereas at higher applied currents (>70 lA) corrosion damage spreads across the alloy. Limited penetration depths at higher currents are attributed to metal dissolution inhibition by the rapid formation of insoluble molybdates, which force propagation to shift to areas unprotected by molybdate layers.
@article{38cf688d-a175-46cf-b48b-414c44502e64,
title={The evolution of crevice corrosion damage on the Ni–Cr–Mo–W alloy-22 determined by confocal laser scanning microscopy},
author={P. Jakupi and J.J. Noël},
year={2012},
language={en}
}TY - JOUR TI - The evolution of crevice corrosion damage on the Ni–Cr–Mo–W alloy-22 determined by confocal laser scanning microscopy AU - P. Jakupi AU - J.J. Noël PY - 2012 LA - en ER -
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