| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Ultrafine-grained and Heterostructured Materials (UFGH XI)
|
| Presentation Title |
Making Strong, Tough, Thermally-stable, and Radiation Tolerant Nanocrystalline Materials in Bulk Form |
| Author(s) |
Timothy J. Rupert |
| On-Site Speaker (Planned) |
Timothy J. Rupert |
| Abstract Scope |
Nanocrystalline materials are unfortunately often an exercise in futility. Efforts to make them extremely strong result in embrittlement. Process improvements that give additional grain refinement only mean that your material is more unstable against coarsening. In this talk, we discuss how the incorporation of disordered complexions into a nanocrystalline grain structure can be a possible way to solve all of the major limitations of nanocrystalline materials. We find that the ductility, toughness, strength, thermal stability, and radiation tolerance are all simultaneously increased with the incorporation of amorphous intergranular films into nanocrystalline Cu alloys. Moreover, these materials can be easily fabricated into bulk forms with simple processing, suggesting a route to commercial use in the near future. Finally, we demonstrate that these findings can be generalized to other material systems, with extension to Fe-rich alloys being of particular interest. |
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume; Planned: Supplemental Proceedings volume |