| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advances in Multi-Principal Element Alloys II
|
| Presentation Title |
A High-Throughput Investigation of Composition-Microstructure Relationships in NbVZrMx Alloys |
| Author(s) |
Katharine Padilla, Zhaohan Zhang, Rohan Mishra, Katharine Flores |
| On-Site Speaker (Planned) |
Katharine Padilla |
| Abstract Scope |
Refractory complex concentrated alloys (RCCA) are promising materials for high-temperature structural applications due to their high strength and other favorable mechanical properties. Previous studies on NbVZr, which forms the basis for many RCCAs, have reported a multiphase microstructure comprised of BCC dendrites separated by two Laves phases, cubic C15 and hexagonal C14. Recent computational results indicate additions of Mo, Ta, and Ti can have varying stabilizing effects on the BCC phase, potentially form a single-phase solid solution alloy, based on composition and concentration. In this work, we apply a high-throughput synthesis technique to investigate and compare the compositional-microstructural relationships in NbVZrMox, NbVZrTax, and NbVZrTix. We use direct laser deposition to rapidly synthesize compositional libraries and apply a suite of characterization techniques to investigate the resulting microstructural evolution. Nanoindentation experiments are performed to investigate the relationship between composition and mechanical properties at temperatures up to 600 C. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Characterization, High-Entropy Alloys |