Abstract
Abstract The aqueous corrosion characteristics of low-carbon steel (CS) with small amounts of Cr, Co, Cu, Ni, and Ca in synthetic groundwater were studied using electrochemical corrosion tests (potentiodynamic test and electrochemical impedance spectroscopy [EIS] measurements) and analytical techniques. Neither CS nor new alloy steels showed passive behavior in this synthetic groundwater. New alloy steels containing Cr-Co, Cr-Cu-Ni, and Cr-Cu-Ni-Ca showed higher corrosion resistance than CS in the potentiodynamic tests. EIS measurements showed that the Nyquist plot presented two time constants. The high-frequency resistance component (Rrust) low-frequency resistance component (Rct) were affected by the alloying elements. The polarization resistance (Rp = Rrust + Rct) of steels could be clearly ranked as Cr-Cu-Ni-Ca steel ≫ Cr-Cu-Ni steel > Cr-Co steel > CS. Results of surface analyses (x-ray photoelectron spectroscopy [XPS] and electron probe microanalysis [EPMA]) showed that Cr and Cu were concentrated i...
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.
