| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing: Processing Effects on Microstructure and Material Performance
|
| Presentation Title |
Phase Transformations in Al-Ce-X Alloys |
| Author(s) |
Kevin Sisco, Alex J. Plotkowski, Kurt Sickafus, Claudia Rawn, Ryan Dehoff, Lawrence Allard, Sumit Bahl, Amit Shyam, Andres Rossy, Sudarsanam S. Babu |
| On-Site Speaker (Planned) |
Kevin Sisco |
| Abstract Scope |
Additive manufacturing of aluminum alloys offers an opportunity for reduced weight and improved fuel efficiency through optimized design and replacement of heavier alloys. However, a limiting factor is the retention of strength at elevated temperatures. Recent research in Al-Ce based alloys has resulted in several compositions designed for additive manufacturing which also exhibit complex phase evolution for a wide-ranging microstructure across even a single melt pool. This variation in localized regions allows for the formation of unique intermetallic phase structures that require advanced characterization to optimize the properties of these alloys. This presentation will focus on understand both the as-fabricated structure of these alloys and the solid-state phase transformations that accompany long service times at elevated temperatures. These results will be used to rationalize the performance of these alloys, and remaining research required to properly understand the phase evolution in systems and implications for future alloy design will be summarized. |
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |