| About this Abstract |
| Meeting |
2021 TMS Annual Meeting & Exhibition
|
| Symposium
|
Frontiers in Solidification Science VIII
|
| Presentation Title |
Orientation Relationships and Pattern Evolution In Directionally Solidified Al-Cu-Mg Ternary Eutectic
|
| Author(s) |
Dominic Ezemenaka, Amber L. Schneeweis Genau |
| On-Site Speaker (Planned) |
Dominic Ezemenaka |
| Abstract Scope |
Microstructure formation in multi-phase, multi-component systems is often highly sensitive to both processing parameters and small changes in composition. In this work, directional solidification via a Bridgman-type furnace is used to explore the behavior of alloys at or near the Al-Al2Cu-Al2CuMg ternary eutectic point. The stability limits of couple growth are considered, and a semi-automated method of image analysis used to quantify changes to the solidification microstructure as a function of both thermal gradient and growth rate. Since there exist incomplete literature data on this system’s preferred crystal orientation relationships and how those orientations develop with increasing growth height, this research also seeks to deploy both electron backscatter diffraction (EBSD) and scanning electron microscopy (SEM) techniques to expand our understanding on the subject matter. The results will be compared with the behavior of Al-Cu-Ag ternary eutectic, which shares two of the same phases. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Solidification, Characterization, |