Fig. 5: Time-lapse Microscopy images of Zn-1Mg-1Al taken under immersion conditions in 0.17 mol.L^-1 NaCl pH 7 solution.

The images shown were taken at a 0 min b 25 min c 50 min d 75 min and e 100 min. The images show the initiation and progression of an anode over the first 100 min of exposure.