Abstract
In this study, a hypereutectic-eutectic-hypoeutectic gradient high-entropy alloy (HEA) coating was successfully prepared by in-situ interfacial reaction between Nb and FeCoCrNi. Its microstructure is composed of Fe-rich FCC phase and Nb-rich Laves phase, and the eutectic structure is nano lamellar. The outside-to-inside hardness of the coating gradually decreases from 797.4 Hv0.5 to 425.5 Hv0.5. Compared with those of the FeCoCrNi HEA coating, the surface hardness, COF, and wear rate of the hypereutectic-eutectic-hypoeutectic gradient HEA coating are improved by 340%, 41.3%, and 94.1%, respectively. The design and preparation method applied in this study can provide new ideas for the development of new HEA coatings.
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.
