Phase dissolution strengthens and ductilizes a high-entropy alloy

Annealing is widely used in the thermomechanical processing of metallic alloys. Usually, ductility enhances while strength decreases because defects annihilate with increase annealing temperature. Here, we report a simultaneous improvement and TiZrNbTa high-entropy alloy by promoting phase dissolution increasing When performed from 800 to 1250°C, tensile yield increases 40% 1003 ± 16 MPa, elongation nearly doubled 16.79% 1.03%. The annealing-induced promotes lattice distortion, contributing enhanced friction stress strength. correspondingly decreased interface mismatch alleviates concentration, stimulated formation local chemical orders encourages coplanar slip dislocation multiplication. Both occurrences boost ductility. These results not only expand our understanding effect materials, but also provide an insight into designing strong ductile