Abstract
Under the influence of chloride-containing environment such like shallow sub-marine or littoral area, hot-dip Zn55Al coated steel sheet is easily corrode. Based on an applicable combination of parameters, a Cr(III)-based conversion coating(TCC) was formed on Zn55Al coating successfully based on Coldip 120 commercial passivator. The corrosion behaviour of the Cr(III) treated hot-dipped steel samples subjected to the Cr(III)-based passivation treatment was studied using electrochemical impedance spectroscopy (EIS) in a 3.5% NaCl solution, and the failure mechanism of the conversion coating-hot-dip coating system was investigated by analysing the time dependence of the electrochemical parameters of impedance. In addition, the role of corrosion products formed on Zn55Al during the different immersion time in the NaCl solution was also revealed by scanning electron morphology (SEM) and energy dispersive spectrometer (EDS).
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: IOP Conference Series: Materials Science and Engineering
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
