Laser additive manufacturing of refractory high entropy alloy and its resistance to ultra-high temperature oxidation

摘要

This report presents the composition design of refractory high entropy alloy resistant to ultra-high temperature oxidation and the research progress of laser additive manufacturing technology. It is experimentally veri fied that certain refractory high entropy alloys can grow a single alumina scale under ultra-high temperature conditions, and the relevant results are expected to open up a new way for fabricating metallic coating to protect CMC against oxidation in ultra-high temperature environments.