Fig. 8: Two-dimensional views of a growing pit. | npj Materials Degradation

Fig. 8: Two-dimensional views of a growing pit.

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

Fig. 8

Time-lapse tomograms showing the evolution of Pit 3 are shown. a Shows top-down views of the droplet and corrosion product associated with this pit between 15 h (before pit nucleation) and 53 h. b Shows a top-down view of the corrosion damage associated with this pit beginning at 29 h, the first timestep when a pit was observed at this location. c, d Show horizontal sections along the planes shown in (b). The pit nucleated below the intersection of these two lines. The scale bar in (a) is 20 μm and all images are at the same scale. Arrows in (a) at 22 h of exposure highlight the spreading of an initial drop to a nearby drop. The arrows at 53 h of exposure indicate approximately the same location.

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