Abstract
Zn–Al pack co-cementation was performed on medium carbon steel in a pack mixture containing Zn and Al powders with NH4Cl as activator. An Fe–Zn layer was formed first during pack co-cementation. Fe–Al phases then nucleated locally on the surface of the Fe–Zn layer. With continued reaction, a complete Fe–Al layer was formed and grew at the expense of the Fe–Zn layer. The Fe–Zn was compact, but the Fe–Al layer was porous. The Fe–Al layer had better high-temperature oxidation resistance, while the Fe–Zn layer had better corrosion resistance in chloride solution. Based on microstructural evolution and the chemical reactions associated with Zn–Al pack co-cementation, the growth behavior of Zn–Al pack coating on steel was discussed in detail.
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.
