Fig. 8

SEM surface images of C-steel after immersion without (a) and with (b) 0.5 g L−1 of Irish ivy extract (IIE) in 2 M H2SO4 solution.
SEM surface images of C-steel after immersion without (a) and with (b) 0.5 g L−1 of Irish ivy extract (IIE) in 2 M H2SO4 solution.