Figure 6

Roughness analysis of surface of AZ91 Mg alloys after immersing in 3.5 wt% NaCl solution (a) without and with addition of (b) 2 g/L GUE (c) 2 g/L PDE (d) 2 g/L TOE for 24 h under normal atmospheric condition.

Roughness analysis of surface of AZ91 Mg alloys after immersing in 3.5 wt% NaCl solution (a) without and with addition of (b) 2 g/L GUE (c) 2 g/L PDE (d) 2 g/L TOE for 24 h under normal atmospheric condition.