760237.fig.0019a
(a)
760237.fig.0019b
(b)
760237.fig.0019c
(c)
Figure 19: Optical microscopic images for aluminum alloy AA2024-T3 (scale bars  =  25 μm). (a) Initial superhydrophobic Ce/silica-coated AA2024-T3 alloy. (b) Corrosion of superhydrophobic and Ce/silica-coated alloy after immersion in 0.05 M NaCl solution for 447 h. (c) Corrosion of bare, uncoated AA2024-T3 alloy after immersion in 0.05 M NaCl solution for 447 h.