| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing Materials in Energy Environments II
|
| Presentation Title |
Characterization of Novel Friction Stir Layer Processed Al10Cr12Fe35Mn23Ni20 High Entropy Alloy for Nuclear Applications |
| Author(s) |
Mohan Sai Kiran Kumar Yadav Nartu, David Garcia, Subhashish Meher, Tianhao Wang, Jorge F Dos Santos, Isabella Van Rooyen |
| On-Site Speaker (Planned) |
Mohan Sai Kiran Kumar Yadav Nartu |
| Abstract Scope |
One of the ways to enhance the sink strength or radiation resistance in alloys is to introduce multiple interfaces via secondary phase precipitation. High Entropy Alloys (HEAs) offer significant potential for inducing such microstructural heterogeneities. While laser-based additive manufacturing methods have been considered to produce HEAs with desired microstructures, solidification defects, and rapid cooling rates that lead to residual stresses are often observed to limit the material's performance. Here, we showcase an advanced solid-state processing method, Friction Stir Layer Deposition (FSLD), to produce defect-free refined microstructures in a high-strength Co-free HEA. Multiple single-track experiments were performed to optimize the process parameters to fabricate a 7-layer tall deposit eventually. A detailed comparison of the microstructures between the as-cast and FSLD-processed HEA will be discussed. Despite the significant drop in the phase fraction of the secondary BCC/B2 phase, the grain refinement substantially improved the mechanical performance of the FSLD HEA |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Characterization, High-Entropy Alloys, Additive Manufacturing |