| Abstract Scope |
High-entropy alloys (HEAs) offer an unprecedented landscape for designing materials capable of withstanding extremes in temperature, corrosion, mechanical stress, and magneto-thermal environments. This talk explores how thermomechanical processing enables the retention of supersaturated solid solutions and access to metastable and spinodal states, unlocking multiple transformation pathways. By tailoring these pathways, HEAs can be co-optimized for strength, corrosion resistance, magnetic response, and thermal conductivity. We demonstrate how microstructure evolution—from dual-phase stabilization to nanoscale intermetallics—is influenced by controlled deformation and annealing. Multimodal characterization, including diffraction, microscopy, and spectroscopy, reveals the mechanistic basis for phase selection and functional tunability. Case studies include HEAs that retain high strength up to 1000 °C, show enhanced passivation through transient phase formation, and exhibit property coupling across structural and functional domains. This presentation highlights a framework for metastability engineering in HEAs, offering new strategies for designing adaptable, high-performance materials for multi-extreme applications. |