| Abstract Scope |
High-entropy alloys (HEAs), as a new class of metallic materials, have attracted increasing interests because of their outstanding mechanical performance. However, like traditional metal and alloys, the dilemma of the strength-ductility trade-off also exists in HEAs. In order to overcome this dilemma, the strategy of heterogeneous architecting has been extensively applied to HEAs for developing heterogeneous HEAs. Here, we review heterogeneous HEAs from the viewpoints of heterogeneous structures, processing techniques, mechanical properties, deformation mechanisms, and future perspectives. Towards a synergy of strength and ductility, the vision that guides the future development and research focuses of heterogeneous HEAs is provided. |