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Meeting 2026 TMS Annual Meeting & Exhibition
Symposium Advances in Multi-Principal Element Alloys V: Mechanical Behavior
Presentation Title Comparison of NbxMo1-x and (VNbTa)xMo1-x Refractory MPEA Thin Films by In Situ Microcantilever Beam Bending
Author(s) Forrest Wissuchek, Amit Misra
On-Site Speaker (Planned) Forrest Wissuchek
Abstract Scope Epitaxially grown refractory multi-principal element alloys (RMPEA) thin films with compositions NbxMo1-x and (VNbTa)xMo1-x are characterized by microcantilever beam bending to compare plastic deformability and crack propagation as a function of composition. RMPEAs containing Group VI elements are known to have poor tensile ductility in bulk samples, but data is mostly limited to equiatomic compositions. This study uses a more focused approach to analyze how the of Mo affects mechanical properties when added to Nb and VNbTa (a Group V RMPEA). Homogenized RMPEA thin films prepared by magnetron sputtering can be quickly produced across a range of compositions with well controlled microstructures. This study advances understanding of compositional impacts on RHEA performance, opening pathways for optimized alloy design.
Proceedings Inclusion? Planned:
Keywords Mechanical Properties, High-Entropy Alloys, Other

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