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Meeting 2026 TMS Annual Meeting & Exhibition
Symposium Advances in Multi-Principal Element Alloys V: Mechanical Behavior
Presentation Title Exploring the Shock Response of Compositionally Complex Alloys
Author(s) Anirudh Hari, Paul E Specht, Sophie E Parsons, Kento Katagiri, Rayen Lin, Kohei Miyanishi, Norimasa Ozaki, Wuxian Yang, Wen Chen, Yogesh K Vohra, Leora E Dresselhaus-Marais
On-Site Speaker (Planned) Anirudh Hari
Abstract Scope Compositionally complex alloys, including medium and high entropy systems, offer a unique platform for studying phase stability, transformation pathways, and kinetic phenomena under extreme conditions. In this work, we investigate the behavior of select multi-principal element alloys subject to high strain rate shock loading. Our efforts focus on materials in the Co-Ni family of alloys, including AlCoCrFeNi2.1, Ni40Co20Fe10Cr10Al18W2, CrCoNi and VCoNi. We use a combination of diagnostics including velocimetry and in situ X-ray diffraction to probe the shock response of these alloys, both during compression and release. We will discuss the effects of initial microstructure and strain rate on the elastic limit and phase transformations.
Proceedings Inclusion? Planned:
Keywords High-Entropy Alloys, Additive Manufacturing, Other

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CALPHAD-Guided Development and Mechanical Evaluation of Dual-Phase CoFeNiVTi Alloys
Combinatorial microstructure & stoichiometry-based and hybrid machine learning & domain knowledge for hardness mapping in a high-entropy alloy
Comparison of NbxMo1-x and (VNbTa)xMo1-x Refractory MPEA Thin Films by In Situ Microcantilever Beam Bending
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Dislocation Analysis of CrCoNi using Micropillar Experiments and Molecular Dynamics Simulations
Dislocation Properties in Refractory Compositionally Complex Alloys
Dry Sliding Wear of Cu-Alloyed Low-Carbon Steels: Role of Oxides and Quenching Temperature
Ductile-Brittle Transitions in bcc Refractory High-Entropy Alloys
Dynamic properties of NbTaTiHf High-Entropy Alloy
EBSD analysis of microstructure evolution in hot-deformed WMoFeNi MPEA Alloy system
Effect of minor Ge/Mo/W on the corrosive behavior in FCC CoCrFeNi high-entropy alloy
Effect of Mo-addition on fracture behavior and mechanical properties of NbTaTiV-based refractory high-entropy alloys
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Examining the influence of multiphase evolution and elemental partitioning on mechanical behavior in Nb-V-Zr alloys
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