Abstract
The carbon steel electrodes were first treated by immersion in 0.1M phenyl phosphonic acid (C6H5P(O)(OH)2, PPA) solution during 24 or 72h, then they were transferred into the corrosion test solution representing interstice pore electrolyte polluted by seawater: (sat. Ca(OH)2+0.5M NaCl) to evaluate the protective effectiveness of the pre-treatment. The investigation was performed essentially by polarisation curves and electrochemical impedance measurements with rotating disc electrode. Very high protective effect was observed with steel pre-treated during 72h with stationary electrode. From polarisation and electrochemical impedance spectroscopy experiments, the protective efficiency was found to be in the 90–99% range for 72h pre-treatment. This protective property remains effective even one month immersion. EDS analysis showed the presence of the phosphorus on the steel surface, probably due to the presence of iron-PPA complex.
Sign-in/Register to access full text options 
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 callDisclaimer: 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.
