Corrosion Inhibition of Mild Steel in Acidic Media by 5′-Phenyl-2′,4′-dihydrospiro[indole-3,3′-pyrazol]-2(1H)-one

Figure 8

(a) SEM micrographs of 1 M HCl, (b) 1 M HCl + SPAH.

(a)

(b)