| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Nanostructured Materials in Extreme Environments III
|
| Presentation Title |
Thermal Stability of Nanocrystalline Metallic Materials |
| Author(s) |
Xinghang Zhang, Yifan Zhang, Nicholas A. Richter, Haiyan Wang |
| On-Site Speaker (Planned) |
Xinghang Zhang |
| Abstract Scope |
Nanostructured metallic materials exhibit high strength and good radiation resistance. While the nanoscale grains induce high strength, they also have limited thermal stability at elevated temperatures. Here, we present several examples where the microstructure and chemistry design can largely impact the thermal stability of nanocrystalline alloys. In nanotwinned Al alloys, solute synergy concept has been used to prominently improve the thermal stability of nanograins and high temperature mechanical strength. In a gradient nanostructured Ni alloy, the formation of thick grain boundaries substantially improves the stability of nanocrystalline metals. The implications of these findings for the design of nanocrystalline materials with unique thermal stability and mechanical behavior will be discussed. |
| Proceedings Inclusion? |
Planned: |