| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Aluminum Alloys: Development and Manufacturing
|
| Presentation Title |
Elucidating Mechanisms of Thermal Stability and Performance Enhancement in Hypoeutectic Al-Si Alloys with Trace Transition Metal Additions |
| Author(s) |
Jaehui Bang, Hyunchuel Lee, Nawon kwak, Eunkyung Lee |
| On-Site Speaker (Planned) |
Jaehui Bang |
| Abstract Scope |
The superior thermal stability of tri-aluminide phases is crucial for high-temperature applications of Al-Si alloys. This study systematically investigates the effects of incorporating transition metals at maximal solubility levels on the high-temperature properties of Al-Si alloys. The findings demonstrate that the inclusion of these transition metals significantly enhances the chemical performance and thermal property at elevated temperatures. This enhancement arises from mechanisms distinct from the conventional trialuminide formation. The research reveals that transition metals augment thermal stability, chemical and thermal properties by refining the microstructure and inhibiting precipitate coarsening. These insights are instrumental in the design of Al-Si alloys for high-temperature applications, underscoring the potential for optimized alloy compositions that exploit the benefits of transition metal additions. |
| Proceedings Inclusion? |
Planned: Light Metals |
| Keywords |
Aluminum, Characterization, Mechanical Properties |