| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Mechanical Behavior Related to Interface Physics IV
|
| Presentation Title |
Evading strength – ductility tradeoff in the complex concentrated alloy laminate by combining metastability engineered alloy design and friction stir welding technique |
| Author(s) |
Roopam Jain, Ravi S. Haridas, Prithvi Awasthi, Abhijeet Dhal, Rajiv S. Mishra |
| On-Site Speaker (Planned) |
Roopam Jain |
| Abstract Scope |
Stacking fault energy (SFE) dictates the deformation behavior of the metallic materials by varying the key deformation mechanisms including planar slip, multiple slip, deformation twinning and phase transformations. Multiple complex concentrated alloys are developed by tuning the SFE to impart unique deformation characteristics in the literature. Parallelly, gradient and laminate microstructures are also gaining interest due to enhanced hardening mechanisms imparting simultaneous increase in the strength and ductility. We attempted to prepare the complex concentrated alloy laminate using friction stir welding technique by sandwiching a softer gamma dominated CCA between the harder epsilon dominated CCA plates. Deformation behavior of the laminate is studied in contrast to the behavior of individual alloys to elucidate the role CCA interfaces. We employed EBSD, micro x-ray diffraction and nanoindentation techniques to understand the evolution of localized microstructural features before and after the deformation. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Composites, High-Entropy Alloys, Phase Transformations |