Abstract
PVD ZnCr coatings exhibit different metastable crystal structures δ, ζ, Γ depending on the Cr content and the deposition conditions. Here we describe the different mechanical and electrochemical properties of these phases. We show that by introducing an appropriate Cr concentration profile it is possible to produce a ZnCr coating with a thin Γ -phase interface layer optimized for substrate adhesion and a δ-phase matrix with a strong basal texture which possesses excellent cold forming properties. This alloy coating is tailored so that the application of a short low temperature annealing step after forming, such as an automotive paint bake hardening treatment, transforms the textured δ-phase into a nanocrystalline i-phase with no marked texture. The latter microstructure provides significantly improved primary corrosion protection.
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.
