#wiley资讯[超话]##资讯##学术# Rare Metals | 2026年第4期已上线，欢迎阅读！
Cover Story Unveiling Solidification Mechanism and Balanced Strength–Ductility Synergy of Eutectic High-Entropy AlloysEutectic high-entropy alloys (EHEAs) have attracted significant attention due to their balanced mechanical properties and promising applications. Nonetheless, the correlation between the solidification mechanism of eutectic microstructures and their mechanical properties remains elusive. In this study, we report a dual-phase EHEA composed of typical regular and irregular lamellar colonies. Both colonies exhibit a dual-phase structure containing face-centered cubic (FCC) and body-centered cubic (BCC) phases, which collectively induce balanced as-cast strength–ductility synergy. Through multiscale probing of deformation processes, we unveiled that the mixed, regular/irregular, eutectic lamellar microstructure is critical for balancing strength and ductility, stemming from persistent hetero-deformation-induced strain hardening spanning across a wide strain scope. The hybrid structure of regular and irregular lamellar eutectics arises from solute diffusion and associated thermo-physical factors during solidification. These findings provide valuable insights into the structure–property relationships of EHEAs, offering strategic guidance for the design of advanced alloys targeting high-performance structural applications
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