Figure 9

SEM images for X52-steel corrosion in pickling solution (1.0 M HCl) without (a) and with (b) 400 mg L−1 of BLE extract at 298 K.
SEM images for X52-steel corrosion in pickling solution (1.0 M HCl) without (a) and with (b) 400 mg L−1 of BLE extract at 298 K.