Abstract
The inhibitive effect of some heterocyclic organic compounds on the corrosion of 304 stainless steel (304 SS) in 1 M HCl was studied using weight loss, open potential circuit, potentiodynamic polarization and electrochemical impedance spectroscopy techniques at room temperature. The polarization curves revealed that these investigated compounds act as mixed-type inhibitors. Adsorption of these inhibitors on 304 SS surface was found to obey the Langmuir adsorption isotherm. Results showed that the corrosion rate of SS increased with raising temperature and decreased in the presence of investigated compounds. The highest inhibition efficiency of 70.1% was observed with these investigated compounds. An improved inhibition efficiency of 94.5% was observed with the mixture of these compounds and KI at 25 °C in 1 M HCl. This indicates that these compounds were assumed to adsorb on SS surface via physical adsorption. The reactivity of these compounds was analyzed through theoretical calculations based on semi-empirical theory
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.
