Fig. 13

Anodic potentiodynamic polarization curves in diluted Harrison solution for as-received AA6060, chromatized AA6060, and ZrO₂-pretreated AA6060 (1dip-250). These potentiodynamic polarization curves were performed on samples containing defects in the pretreatment (Reprinted from Electrochim Acta, 52, Andreatta F, Aldighieri P, Paussa L, Di Maggio R, Rossi S, Fedrizzi L, Electrochemical behaviour of ZrO2 sol-gel pre-treatments on AA6060 aluminium alloy, 7545–7555, Copyright (2007), with permission from Elsevier)