About this Abstract |
| Meeting |
TMS Specialty Congress 2026
|
| Symposium
|
Specialty Congress 2026: All-Congress Plenary
|
| Presentation Title |
Lightweight High Entropy Alloys and Metal Matrix Composites: Materials Design and Process Development |
| Author(s) |
Alan A. Luo, Jianyue Zhang |
| On-Site Speaker (Planned) |
Alan A. Luo |
| Abstract Scope |
High entropy alloys (HEAs) are a new class of materials consisting of multiple principal elements and can offer exceptional physical and mechanical properties. However, there have been very limited reports on commercial applications of these materials, largely due to their high material costs and difficult process challenges. This presentation provides three examples of lightweight HEAs and HEA-reinforced light metal matrix composites (MMCs). This first example is on CALculation of PHAse Diagrams (CALPHAD)-based alloy design of AlCrTiV system, providing exceptional hardness and high elastic modulus but limited ductility. The next example is a castable AlCuZn-based alloy design supported by CALPHAD modeling and machine learning. This low-cost alloy system shows excellent mechanical properties and castability, promising large structural applications. Finally, the high hardness and elastic modulus of HEAs and their compatibility with light metals (Al and Mg) make them excellent reinforcements in metal matrix composite (MMC) development. Al-based MMCs reinforced with AlCrTiV-based HEA particles were prepared using ultrasonic-assisted casting processes, with significant potential for high-volume applications. |
| Proceedings Inclusion? |
Undecided |
