| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Aluminum Alloys: Development and Manufacturing
|
| Presentation Title |
Banded Microstructures: Development of Novel Structures Under Directional Solidification of Aluminum-Indium |
| Author(s) |
Jaime Perez Coronado, Aramanda Shanmukha Kiran, Zach Croft, Lingxia Shi, Jason Landini, Katsuyo Thornton, Ashwin Shahani, Alan Taub |
| On-Site Speaker (Planned) |
Jaime Perez Coronado |
| Abstract Scope |
Aluminum alloys are of great interest to automotive and aerospace industries due to their high strength to weight ratio. Unfortunately, however, such alloys are unsuitable for high temperature environments. The addition of ceramic particles into the melt during solidification helps to reinforce the Al matrix, but maintaining a uniform distribution of particles is challenging. Understanding the interaction between particles and solid-liquid interfaces will enable control of the particle distribution. To this end, we perform directional solidification experiments in a Bridgman type furnace and observe unusual banded microstructures. Varying solidification rates, alloy compositions, and secondary phases (solid or liquid) in two- and three-phase alloys influences the periodicity of the bands, and, in turn, the mechanical properties. On the basis of our results, we propose a mechanism for the selection of band spacing in monotectic alloys and metal matrix nanocomposites. |
| Proceedings Inclusion? |
Planned: Light Metals |
| Keywords |
Characterization, Composites, Solidification |