Effect of B-Mo-W Complex Inhibitor on Corrosion of Mild Steel in 55% LiBr Solution

• DOI: 10.1007/s11665-015-1664-1
• Publication Date: 2015-10-14T00:32:20Z
• Authors: Jielan Li; Chenghao Liang; Naibao Huang
• Keywords: Corrosion inhibitor

The inhibition effects of B-Mo-W complex inhibitor on corrosion of mild steel in 55% LiBr solution were investigated using weight-loss method, electrochemistry tests, SEM, EDX, and XRD. The ingredients of B-Mo-W complex inhibitor included organic phosphonic acid B, Na2MoO4, and Na2WO4. The results revealed that B-Mo-W complex inhibitor was capable of inhibiting the corrosion of mild steel in 55% LiBr solution, exhibiting high inhibition efficiencies around 97.7%. B-Mo-W complex inhibitor promoted the formation of a protective passive film composed of Fe, Mo, W, and O elements. The passive film decreased the corrosion rate, improved the electrochemistry performance, and enhanced anti-corrosion ability of mild steel.