Abstract
Some mild steels when chemically polished in oxalic acid/hydrogen peroxide solutions developed oxide films, containing chromium, which were unusually resistant to removal. The same steels developed similar films during electrochemical passivation in sulphuric acid. Susceptibility to chromium enrichment seems to be not solely influenced by chromium content but is affected by heat-treatment and possibly depends on some chromium remaining in solution in the ferrite. For mild steels, chromium enrichment does not prevent brightening, but for steels deliberately alloyed with chromium it may.Chromium enrichment of the surface of a stainless steel was also found after electrochemical polishing. The use of anodic oxidation at constant current for the examination of stainless steel surfaces is discussed.
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.
