New Mechanism on Synergistic Effect of Nitrite and Triethanolamine Addition on the Corrosion of Ductile Cast Iron

Figure 3

Effect of coadded corrosion inhibitors on anodic polarization curve of DCI (25°C deaerated tap water + x ppm corrosion inhibitor (N: , T: TEA)). (a) 2.5k ppm T + x ppm N, (b) x ppm T + 1k ppm N.

(a)

(b)