About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Mechanical Behavior at the Nanoscale VIII
|
| Presentation Title |
Modeling Nanoindentation Hardness and Elastic Modulus of High Entropy Alloy for Accelerated Qualification |
| Author(s) |
Mohammad Shafinul Haque, Cody Fentress, Abraham Burleigh, Nicholas Crnkovich, Adrien Couet, Kavin Ammigan |
| On-Site Speaker (Planned) |
Mohammad Shafinul Haque |
| Abstract Scope |
The development of next-generation multi-megawatt accelerators requires novel materials that are resistant to beam-induced radiation and thermal shock damage, as traditional materials will limit survivability and performance at high beam power. Novel low-density high-entropy alloys (HEAs) are being investigated for accelerator beam-window applications. A primary strategy for designing novel HEAs is to identify compositions that form a single-phase BCC structure with coherent precipitates and favorable microstructural properties. This presentation introduces a mechanical property modeling approach for several six-element AlCoCrMnTiV HEAs for accelerated qualification. First, nanoindentation measurements of hardness, yield strength, and modulus for both irradiated and unirradiated HEAs will be presented. Next, progress toward a predictive framework for estimating mechanical properties as a function of displacement damage, chemical composition, and irradiation temperature will be discussed. Together, the nanoindentation and modeling efforts will enable efficient down-selection of HEA candidates and reveal potential trends related to displacement damage, temperature, and composition. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
High-Entropy Alloys, Modeling and Simulation, Nanotechnology |