Synergistic Effect of Carbamide and Sulfate Reducing Bacteria on Corrosion Behavior of Carbon Steel in Soil

Figure 14

Surface morphologies of specimen in soils with moisture of 30% after 65 days. (a) 0% carbamide, (b) 0.5% carbamide, (c) 0% carbamide+SRB, and (d) 0.5% carbamide+SRB.

(a)

(b)

(c)

(d)