Figure 9

SEM micrograph of mild steel surfaces before and after immersion for 24 h in 3.5% NaCl at 298 ± 1 K, (a) Polished mild steel sample, (b) In absence of inhibitor (blank), (c) in presence of 200 ppm from (VF) hexane extract (d) in presence of 200 ppm from (VF) acetone extract.