About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Aluminum Alloys: Development and Manufacturing
|
| Presentation Title |
Evolution of ultrafine eutectic in Al-Ce alloys using Electrically Assisted Process |
| Author(s) |
Mehran Zare, Kaustubh Rane, Lourdes G Salamanca-Riba, Pradeep K Rohatgi |
| On-Site Speaker (Planned) |
Mehran Zare |
| Abstract Scope |
In this study, the microstructure of Al–Ce alloys was refined through the application of Electrically Assisted Processing (EAP). Three alloying compositions Al–8Ce, Al–12.5Ce, and Al–14Ce were selected for investigation of the effects of EAP on cast microstructure of hypoeutectic, eutectic, and hypereutectic alloys, respectively. 800 rpm stirring with an electrical current of 100 A and 7 V was applied directly to the molten Al–Ce alloys during fabrication process using graphite electrodes. The results demonstrated that EAP led to significant microstructural refinement by suppressing the formation of proeutectic Al11Ce3 intermetallics and resulting in a much finer eutectic α-Al/Al11Ce3 microstructure. Results of a quantitative analysis of interlamellar spacing in the eutectic phase and secondary dendrite arm spacing (SDAS) was done to assess the degree of refinement. A comparison of selected mechanical properties between EAP-treated and conventionally processed Al–Ce alloys will be presented. |
| Proceedings Inclusion? |
Planned: Light Metals |
| Keywords |
Aluminum, Characterization, Mechanical Properties |