Abstract
Most oxide films provide extensive corrosion inhibitors by incorporation of chromium compounds (i.e. Cr(VI)) that provide such good protection. But, replacement of hexavalent chromium is also under active consideration because of its toxicity. This paper describes research, which has been carried out to find alternatives to chromic acid anodisation (H 2CrO 4), for 2024-aluminium alloy. Promising inhibitors: molybdate and permanganate anions have been identified. In this work, attempts have been made to incorporate these inhibitors into the anodic film during the anodising process. Corrosion performance has been studied and compared using anodic polarisation techniques and impedance spectrometry measurements.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: 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.