Abstract
The corrosion behavior of borided X12CrNiMoV12-3 steel immersed during 5 days in a 0.1 M NaCl + 0.04 M Na2SO4 aqueous solution was obtained. The boride layer (FeB/Fe2B) formed on the surface of the material was developed using the powder-pack boriding process at 1223 K during 6 hours of exposure. Some corrosion electrochemical parameters such as the polarization resistance, the current density, the anodic and cathodic Tafel slopes were determined by means of the potentiodynamic polarization technique, in which the corrosion resistance values of the borided stainless steel were compared with those estimated for the non-borided X12CrNiMoV12-3 steel (reference material).The corrosion behavior of the borided X12CrNiMoV12-3 steel was associated with the development of B2S3 and Fe2O3 on the surface of the boride layer as well as for the presence of texture fibers such as {020}//ND and {021}//ND (estimated from crystallographic texture analysis), which drastically reduced the corrosion resistance values of the boride layer exposed to the aqueous solution. Finally, the electrochemical reactions produced during the immersion of the borided X12CrNiMoV12-3 steel in the neutral chloride-sulfate aqueous solution were proposed.
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.
