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

Figure 2

Effect of singly added corrosion inhibitors on anodic polarization curve of DCI (25°C deaerated tap water + x ppm corrosion inhibitor (N: , T: TEA)); (a) nitrite addition, (b) TEA addition.

(a)

(b)