Abstract
Abstract The corrosion resistance of electroplated Zn–Ni alloy using trivalent chromium conversion treatment in alkaline electrolyte was investigated. Among the Zn–Ni coatings electroplated on steel substrate with raising current densities, the Ni content and corrosion resistance increased accordingly. Further conversion treatment generated passivates which thickness increased with treatment durations. The passivation film showed Ni rich content comparing with its pristine Zn–Ni coating and mainly composed of Cr2O3, ZnO and NiO. The passivation film improved corrosion resistance. However, the 30-s treated specimen showed best corrosion resistance because of its moderate thickness and less dehydration voids and cracking in the passivation film.
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.