Fig. 9: Post-mortem microscopy of a pit. | npj Materials Degradation

Fig. 9: Post-mortem microscopy of a pit.

From: Revealing the growth kinetics of atmospheric corrosion pitting in aluminum via in situ microtomography

Fig. 9

Secondary electron images and EBSD maps from a FIB cross-section of Pit 4 are shown. a Shows a secondary electron image of the cross-section and the dashed curve approximately indicates the original wire surface. b Shows a detail-image of the boxed area in (a). Inverse pole figure (IPF) and kernel average misorientation (KAM) maps in (c, d) are from a location within proximity of (b) with color-coded arrows highlighting the same locations across select corroded boundaries. The IPF map is colored with respect to the fiber direction with the grain boundaries colored according to the misorientation angle (gray scale). Unindexed pixels in (c, d) are white excepting corrosion damage that is surrounded by undamaged material within the area inspected in (d). This is colored black. The scale bars in (a, b) are 5 μm. Data in (c, d) are at the same scale as those shown in (b).

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