| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Aluminum Alloys: Development and Manufacturing
|
| Presentation Title |
K-5: Role of Intermetallic Compounds on Hot Tearing and Heat Treatment Characteristics of Wrought Aluminum Alloys:
A Combined Study Among Multiscale Characterization,
Synchrotron X-ray Tomography and CALPHAD Approaches |
| Author(s) |
Te-Cheng Su, Kai-Yu Liang, Hao-Chuan Huang, Ling-En Yao, Mien-Chung Chen, Sheng-Long Lee, Pei-Tzu Lee, Ying-Shuo Tseng, Gung-Chian Yin |
| On-Site Speaker (Planned) |
Hao-Chuan Huang |
| Abstract Scope |
The 5083, 6061, and 7075 wrought aluminum alloys are susceptible to hot tearing during direct-chill casting. The amount of alloying elements such as Fe, Si, Cu, and Ti can vary when introducing recycled Al scraps, resulting in the change of solidification path and intermetallics formation behaviors. This research uses the constrained rod casting (CRC) method to quantify the hot-tearing susceptibility of 5083, 6061, and 7075 wrought aluminum alloys. We intend to combine (i) multiscale characterization by SEM and TEM for phase identification, (ii) synchrotron X-ray tomography for analyzing the 3D microstructure, and (iii) the calculation of phase diagram (CALPHAD) for thermodynamic analysis. This combined analysis approach is useful for revealing the morphology of intermetallics, their multiphase interactions with primary aluminum crystals and residual interstitial liquid during the hot tearing formation, and the evolution of intermetallics during high-temperature heat treatment. |
| Proceedings Inclusion? |
Planned: Light Metals |
| Keywords |
Aluminum, Characterization, Solidification |