High-strength NbMoTaX refractory high-entropy alloy with low stacking fault energy eutectic phase via laser additive manufacturing

The high-entropy alloys (HEAs) exhibit outstanding high-temperature properties and promise in a wide range of applications, such as aviation, nuclear energy and other fields. However, the problems of formability and defect control limit the successful realization of HEAs. Herein, we newly developed NbMoTaTi0.5Ni0.5 HEA which renders a high room-temperature compressive strength of 2297 MPa and high-temperature (1000 °C) compressive strength of...