760237.fig.0018a
(a)
760237.fig.0018b
(b)
760237.fig.0018c
(c)
Figure 18: Optical microscopic images for aluminum alloy AA2024-T3 (scale bars  =  25 μm). (a) Original uncorroded alloy. (b) Alloy corrosion after immersion in 0.05 M NaCl solution for 100 h. (c) Alloy corrosion after immersion in 0.05 M NaCl and Ce/silica particle solution for 100 h.