Impact of Aqueous Extract Artemisia Herba-Alba Leaves as a Green Inhibitor against Acid Activation of 2024 Aluminum Alloy

Figure 11

SEM micrographs of Al 2024 alloy surfaces (a) before immersion and after 1 h of immersion in (b) 1M HCl, (c) 1M HCl + 0.4 g/L AHA extract and (d) 1M HCl + 0.6 g/L AHA extract.

(a)

(b)

(c)

(d)