Abstract
Amorphous coatings offer substantial enhancements to the surface properties of Mg alloys, particularly concerning wear and corrosion resistance. Cold spray, as a high-speed impact process conducted at low temperatures, demonstrates excellent solid-state forming capabilities for preparing amorphous coatings. However, the excellent properties exhibited by amorphous coatings require comprehensive research on the microstructure evolution of the particle-substrate interface. The results revealed varying degrees of crystallization in the amorphous particle, characterized by obvious crystallization near the particle-substrate interface, where the temperature rise exceeded the crystallization temperature, in contrast to relatively lower crystallization occurring inside the particle. Meanwhile, the high-speed impact led to the formation of a grain-refined layer in the substrate, exhibiting an approximate width of 500 nm, and featuring localized regions of amorphisation. An atomic bonding was achieved in the interfacial area of the particle-substrate where the mixed zone had a width of 40 nm.
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.