Fig. 1: Morphology of crevice corrosion observed on SS(+ISG) in 0.6 M NaCl after 12 months of exposure.
From: Long-term interactive corrosion between International Simple Glass and stainless steel
a An optical microscopy image of SS(+ISG). The optical micrograph of regions 1 and 2 bounded by the red boxes are shown in (b) and (c) respectively. The white arrow is in the direction of the crevice mouth which is not visible in these images. d–f SEM (secondary electron) images of corrosion morphology observed. d corresponds to the pit numbered 3 in (b), (e) corresponds to the pit numbered 4 in (b) and (f) corresponds to the pit numbered 5 in (b). g–i Optical microscopy images of SS(+PTFE) showing extensive crevice corrosion.
