| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Phase Transformations and Microstructural Evolution
|
| Presentation Title |
Long-Term Microstructural Stability of Eutectic Aluminum Alloys at Elevated Temperatures |
| Author(s) |
Moyosore Okeyemi, Aman Kshirsagar, Dinc Erdeniz |
| On-Site Speaker (Planned) |
Dinc Erdeniz |
| Abstract Scope |
Over the past several years, aluminum-cobalt, aluminum-nickel, and aluminum-iron based eutectic alloys have shown promising microstructural stability at elevated temperatures and drawn significant interest from the research community. Among these three binary systems, aluminum-cobalt has received less attention. In this talk, we will explore the design, solidification behavior, and microstructural evolution of four different eutectic alloys with a focus on the effect of cobalt: (i) binary Al-Co (ii) ternary Al-Co-Ni, (iii) ternary Al-Co-Fe, and (iv) quaternary Al-Co-Ni-Fe. The alloys were designed using the CALPHAD methodology and were fabricated via vacuum arc melting. All alloys were then subjected to heat treatments at 300, 350, and 400°C up to 1500 hours to evaluate their microstructural stability through electron microscopy and X-ray diffraction techniques. The influence of microstructural evolution on the mechanical properties were tested via microhardness measurements. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Aluminum, Phase Transformations, Characterization |