| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Aluminum Alloys: Development and Manufacturing
|
| Presentation Title |
Investigation of Fe-Rich Intermetallics, Solidification Porosities, and Cooling Dynamics in 6061 Aluminum Alloy by Multiscale Characterization, Synchrotron X-ray Tomography, and ICME Approaches |
| Author(s) |
Kai-Yu Liang, Hao-Chuan Huang, Ching-Yao Tseng, Chun-Yeh Chen, Ying-Shuo Tseng, Yen-Fang Song, Gung-Chian Yin, Te-Cheng Su |
| On-Site Speaker (Planned) |
Te-Cheng Su |
| Abstract Scope |
6061 aluminum alloy tends to form Fe-bearing intermetallics during the casting process. These intermetallics can hinder the remaining liquid from feeding, leading to severe solidification shrinkage and hot tearing defects. This study involves pouring molten Fe-containing 6061 aluminum alloy into a V-shaped mold that can measure cooling curves at different positions. After solidification, materials near the thermocouples are analyzed using electron microscopy and synchrotron X-ray tomography to clarify the relationships among cooling curves, microstructure of intermetallics, and pore morphology. Furthermore, the cooling curve data and phase identification results are compared with heat-transfer finite element models in COMSOL Multiphysics and kinetic simulations in CALPHAD-based Pandat software. This study not only helps establish control standards for the composition, grain refiners, and cooling rate of 6061 aluminum alloy, but also serves as an application example of emerging analytical techniques such as 3D data visualization and integrated computational materials engineering. |
| Proceedings Inclusion? |
Planned: Light Metals |
| Keywords |
Aluminum, Characterization, Solidification |