760284.fig.001a
(a)
760284.fig.001b
(b)
760284.fig.001c
(c)
760284.fig.001d
(d)
Figure 1: SEM surface morphology of AA 380 panels after alkaline cleaning and acid activation and (a) polishing with 180 grit abrasive paper, (b) water rinsing at 25°C, (c) water rinsing at 25°C showing an area with removal of material, and (d) water rinsing at 100°C.