About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Aluminum Alloys: Development and Manufacturing
|
| Presentation Title |
Influence of Ce content on the microstructure and thermal stability of Al-Ca-Ce alloys |
| Author(s) |
Aditya Rohan Narra, Clement N Ekaputra, Chris M Fancher, Amit Shyam, Alex Plotkowski |
| On-Site Speaker (Planned) |
Aditya Rohan Narra |
| Abstract Scope |
Aluminum alloys are known for their high strength to weight ratio, good thermal conductivity, and cost-effectiveness, making them suitable for heat exchanger applications. However, most commercial Al-alloys exhibit limited thermal stability at elevated temperatures. This research explores the ternary Al-Ca-Ce alloy system, which has not been studied extensively, as a potential candidate for high temperature applications. We characterize the phases present, and find Al4(Ca,Ce) and Al11(Ce,Ca)3 intermetallic compounds, with mutual solid solubility of Ce and Ca in their respective phases. We investigate the influence of this solubility on the coarsening behavior and thermal stability of the ternary Al-Ca-Ce alloy system via ageing treatments, hardness measurements and creep strength assessment. Additionally, we measure thermal conductivity of the ternary Al-Ca-Ce alloys to evaluate their heat transfer capabilities. Our findings suggest a composition space of thermally stable Al-Ca-Ce alloys that are suitable for lightweight heat exchanger applications. |
| Proceedings Inclusion? |
Planned: Light Metals |
| Keywords |
Aluminum, High-Temperature Materials, Mechanical Properties |