Synergetic Effect between Phenolic Extracts of Ammi visnaga and Zea mays Formulation on the Corrosion of Mild Steel in 1 M HCl Solution

Figure 8

SEM photograph of mild steel: immersed in 1 M HCl in the absence (a) and presence (b) of 0.01 HE (AV) + 0.2 gL⁻¹ HE (ZM) at 298 K.

(a)

(b)