**4. Conclusions**

FeCoCrNi HEA coatings have been successfully deposited directly on Ti6Al4V alloy using the laser cladding method. The microstructure evolution and enhanced properties of laser cladded FeCoCrNi HEA on TC4 substrate have been studied and the main conclusions are as follows:


**Author Contributions:** Conceptualization, L.W. and X.Z.; methodology, Z.G.; formal analysis, M.W.; investigation, T.L.; writing—original draft preparation, L.W.; writing—review & editing, F.W.; project administration, X.Z.; funding acquisition, X.Z. All authors have read and agreed to the published version of the manuscript.

**Funding:** This work was supported by the National Natural Science Foundation of China (grant number 51975285) and the National Laboratory for Remanufacturing of Academy of Armored Forces Engineering (grant number 6142005200402).

**Conflicts of Interest:** The authors declare no conflict of interest.
