About this Abstract |
Meeting |
2024 TMS Annual Meeting & Exhibition
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Symposium
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Advances in Multi-Principal Element Alloys III: Mechanical Behavior
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Presentation Title |
On the Damage Tolerance of TRIP, TWIP and Dual-phase High-entropy Alloys |
Author(s) |
Bernd Gludovatz, Moses J. Paul, Hyunseok Oh, Eun Soo Park, Robert O. Ritchie |
On-Site Speaker (Planned) |
Bernd Gludovatz |
Abstract Scope |
Compositionally complex alloys, often termed high-entropy alloys, are an intriguing new class of materials that can crystallize as single-phase solid solutions with simple crystal structures despite containing high concentrations of elements with very different crystal structures. Additionally, they can display a good combination of mechanical properties making them attractive for a wide range of applications. Based on our work on the CrM-nFeCoNi alloy which exhibits an excellent combination of strength, ductility and fracture toughness at ambient to cryogenic temperatures, consistent with its deformation modes of planar dislocation slip and deformation-induced nano-twinning, we will examine composi-tionally modified variations of this material. We will show how their failure resistance de-velops in the same temperature range when compositionally triggered deformation mech-anisms such as transformation induced plasticity (TRIP) or twinning induced plasticity (TWIP) are enabled and additionally compare their behavior to a similar alloy that contains a second phase. |
Proceedings Inclusion? |
Planned: |