| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing: Materials Design and Alloy Development II
|
| Presentation Title |
Design of Al-Fe-Si-based Additively Manufactured High Temperature Light Weight Alloys |
| Author(s) |
Sujeily Soto-Medina, Biswas Rijal, Lilong Zhu, Richard Hennig, Michele V. Manuel |
| On-Site Speaker (Planned) |
Sujeily Soto-Medina |
| Abstract Scope |
Transportation industries are in constant search for low-cost lightweight, high-temperature materials. The Al-Fe-Si system provides an opportunity to develop such a material, as it comprises of the three low cost elements that are all abundant in nature. The intermetallic Al4Fe1.7Si (τ11) is of particular interest due to its low theoretical density, potential mechanical properties at high-temperatures and good corrosion resistance. Although this system displays promising properties, its small homogeneity range presents a limitation to potential applications in additive manufacturing. In order to increase its compositional range, quaternary additions are being explored. In the present work, we have determined the whole compositional range of Al4(Fe, Mn)1.7Si (τ11) using diffusion couples and equilibrated alloys. The composition was measured using EPMA, EDS and phase identification was carried out using XRD. This work was supported by U.S. Department of Energy under contract number DE-EE0007742. |
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |