Corrosion Inhibition Mechanism Study of a Novel Yellow Metal Corrosion Inhibitor

摘要

The corrosion inhibition mechanism of a new yellow metal corrosion inhibitor was studied using multiple characterization techniques including ellipsometry, white light interferometry (WLI), grazing incidence reflection absorption Fourier transform infrared (GIRA-FTIR) spectroscopy, X-ray photoelectron spectroscopy (XPS), electrochemical impedance spectroscopy (EIS) and high-performance liquid chromatography (HPLC). Compared to traditional azole molecules, the novel yellow metal corrosion inhibitor develops a stimuli-responsive film, which would reduce the impact of high levels of halogen on the corrosion of copper and copper alloy surfaces. A tentative structural model describing the improved halogen resistance of copper and copper alloy in the novel yellow metal corrosion inhibitor solution is proposed.