| About this Abstract |
| Meeting |
3rd World Congress on High Entropy Alloys (HEA 2023)
|
| Symposium
|
HEA 2023
|
| Presentation Title |
Complex Concentrated Alloys with Architectured Microstructures: A New Design Strategy for High-temperature Applications |
| Author(s) |
Jean-Philippe Couzinie, Loic Perriere, Ines Crouzet, Regis Poulain, Frederic Prima, Guy Dirras |
| On-Site Speaker (Planned) |
Jean-Philippe Couzinie |
| Abstract Scope |
Over the last two decades, efforts have been made to break with the conventional alloy design and the concept based on multi-principal elements has raised a lot of attention. Thanks to their capacity to maintain high strength properties for T>1000°C, refractory complex concentrated alloys (RCCAs) have received attention for high-temperature (HT) applications. Promising compositions are found in alloy systems with intermetallic B2 phase together with disordered BCC phase. However, and in addition to the microstructural instability, most of those materials have been observed to lose their HT strength above 0.6Tm. Another way to push the boundaries is the formation of architectured microstructures in these complex alloys. To do so, an option is the use of interface-driven microstructures with finely distributed phases. In that way, the development of eutectic RCCAs can meet with this challenge and the design strategy will be discussed in light of recent results gathered by our consortium. |
| Proceedings Inclusion? |
Planned: Metallurgical and Materials Transactions |