| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Aluminum Alloys: Development and Manufacturing
|
| Presentation Title |
K-2: Metallurgical and Rheological Properties of the Equiaxed Semi-solid Aluminum Alloys Under Compression: A Combined Study Between Electron Microscopy and Synchrotron X-ray Tomography |
| Author(s) |
Te-Cheng Su, Ling-En Yao, Kai-Yu Liang, Hao-Chuan Huang, Mien-Chung Chen, Sheng-Long Lee, Pei-Tzu Lee, Ying-Shuo Tseng, Gung-Chian Yin |
| On-Site Speaker (Planned) |
Ling-En Yao |
| Abstract Scope |
The semi-solid compression method is an emerging process to manufacture high-performance aluminum alloy components with lower required loading. By compressing and solidifying the liquid-saturated grain assembly, the semi-solid compression method combines traditional thermomechanical treatment in the solid state with filling and feeding technologies to produce products with complex structures. Therefore, it is essential to determine the relationship between temperature and the initial solid fraction, investigate the microstructural evolutions and defects created during semi-solid compression, and understand the rheological behavior of the grain assembly in semi-solid temperature. We use synchrotron X-ray tomography to observe the microstructural evolutions of Al-Cu alloys at high temperatures and the rheological behavior of the grain assembly as the temperature rises. Those X-ray tomography data are compared with bulk-compression behavior in ex-situ experiments. Finally, this research summarizes the effects of Cu concentrations in cast Al-Cu alloys on the macrosegregation and dynamic recrystallization during semi-solid compression. |
| Proceedings Inclusion? |
Planned: Light Metals |
| Keywords |
Aluminum, Characterization, Solidification |