Study on the Corrosion and Scale Inhibition Mechanism of the Thiourea-Modified Polyepoxysuccinic Acid (CNS-PESA)

Figure 18

SEM images of corrosion inhibition performance analysis of carbon steel (a) before experiment, (b) without adding CNS-PESA, and (c) with adding CNS-PESA.

(a)

(b)

(c)