| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing and Innovative Powder/Wire Processing of Multifunctional Materials
|
| Presentation Title |
In Situ Analysis of the Phase Evolution in AlNiCo |
| Author(s) |
Emily Rinko, Andrrew Chuang, Emma White, Jordan Tiariks, Iver Anderson, Matthew J. Kramer |
| On-Site Speaker (Planned) |
Matthew J. Kramer |
| Abstract Scope |
Developing alloys for Additive Manufacturing requires understanding of the time-temperature-transformation properties near the extremes of conventional cooling rates. The temporal and spatial varying conditions of AM builds can also lead to high residual stresses not normally found in conventional processes. Thus, adapting existing alloys, especially functional alloys like permanent magnets, to AM is a challenge. AlNiCo is an interesting functional alloy since its magnetic properties are controlled by the shape anisotropy, dictated by growth and the subsequent time-temperature pathway during cooling below the spinodal temperature. We tracked the phase evolution of AlNiCo using concurrent small-angle and wide-angle diffraction at the Advanced Photon Source at Argonne National Laboratory. These data reveal the sensitivity of the cooling rate and hold times as well as the interfacial strain that develops during cooling. These results will be compared to AM builds to try to understand the rate controlling processes for optimizing the magnetic properties. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Powder Materials, Phase Transformations, Magnetic Materials |