Excellent mechanical properties of in-situ TiC/FeCrNiCuV0.1 high entropy alloy matrix composites
School of Engineering
This work was supported by the National Natural Science Foundation of China (No. 51571118, and No. 51371098). Jiangsu Province Science and Technology Plan Project (BE2018753/KJ185629). Z Xie acknowledges the support of the Australian Research Council Discovery Projects.
It remains a challenge to enhance strength without sacrificing ductility for high entropy alloys. Here, we prepared in-situ TiC/FeCrNiCuV0.1 high entropy alloy matrix composites using vacuum induction smelting. The new composites exhibit an excellent combination of high tensile strength (1006.5 MPa) and good ductility (15.6%). The improved mechanical properties, as compared to the V-free composites, are attributed to a synergy of solid solution strengthening and grain size refinement.