| About this Abstract |
| Meeting |
2021 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing: Solid-State Phase Transformations and Microstructural Evolution
|
| Presentation Title |
Solidification Structure Characterization of an AlCuMnZr Alloy with respect to geometric features and Multiple Parameters |
| Author(s) |
Kevin D. Sisco, Sumit Bahl, Matthew Chisholm, Richard Michi, Jonathan D Poplawsky, Amit Shyam, Ryan R Dehoff, Alex Plotkowski, Suresh Babu |
| On-Site Speaker (Planned) |
Kevin D. Sisco |
| Abstract Scope |
As the understanding of additive manufactured parts continues to grow, and the library of alloys is expanded, there is a need for more careful consideration of the interplay from the fundamental solidification effects and post processing heat treatments. In this study, we examine 49 different parameter sets across a range of geometric features to investigate the sensitivity of the as-fabricated microstructure and properties. The wide variety of samples in addition to a high preheat temperatures of 200°C, allows the formation of Theta Prime during a build that can eliminate a post heat treatment step. In addition, post processing heat treatments are used to prevent the stabilizing precipitates (Theta Prime) from coarsening and transforming into Theta. These results are used to outline future directions for the optimization of process parameters as a function of geometry and heat treatments and will allow for more opportunities to control site specific microstructural distributions. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Aluminum, Phase Transformations |