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Meeting 2026 TMS Annual Meeting & Exhibition
Symposium Ultrafine-Grained and Heterostructured Materials (UFGH) XIV
Presentation Title Work hardening mechanisms for the acceleration of the strength-ductility Synergy in a novel eutectic AlCoCrFeNiV high-entropy alloy
Author(s) Wen Su, Tianhong Gu, Chong Zhao
On-Site Speaker (Planned) Wen Su
Abstract Scope The loss of ductility is the general challenge in high-entropy alloys, limiting the engineering applications. The eutectic AlCoCrFeNiV high-entropy alloys make up for the ductility limits compared to single-phase high-entropy alloys. The ductility enhancement is verified via the hierarchical strengthening mechanism to avoid the loss of ductility caused by short-term hardening. This work conducts tensile and fatigue tests to observe the strain-hardening capability and activation mechanisms dedicated to extremely high strength with excellent ductility. The multi-scale characterization method explores the structural heterogeneity, the precipitates and phase concentration modification, and the crystal structure regulation helps achieve an ideal high-strength ductility. V modifies the precipitation formation for high strength. This study verifies the addition of V-strengthening effects, setting an example for the alloying design in heterogeneous metals in nuclear and aerospace applications.
Proceedings Inclusion? Planned:
Keywords High-Entropy Alloys, Characterization, Mechanical Properties

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Work hardening mechanisms for the acceleration of the strength-ductility Synergy in a novel eutectic AlCoCrFeNiV high-entropy alloy

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