About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing of Metals: Applications of Solidification Fundamentals
|
| Presentation Title |
Effect of Chemical Composition, Crystallographic Orientation and Processing Parameters on Rapid Solidification in Ni-Al-Mo Single Crystals |
| Author(s) |
Adriana Eres-Castellanos, Ruben Ochoa, Chandler Becker, Kamel Fezzaa, Jonah Klemm-Toole, Tresa Pollock, Amy Clarke |
| On-Site Speaker (Planned) |
Adriana Eres-Castellanos |
| Abstract Scope |
Ni-based alloys are used in aerospace applications because of their high-temperature performance, including excellent corrosion and creep resistance and fatigue performance. Although traditionally processed by casting, additive manufacturing (AM) – e.g. Laser Powder Bed Fusion (LPBF) - enables complex designs to be produced. To understand microstructure development with processing, it is essential to understand the laser-material interactions during melting and solidification. In this study, Ni-Mo-Al alloy single crystals with different Mo and Al contents and crystallographic orientations were subjected to laser spot and track melting under different processing conditions. In-situ synchrotron x-ray imaging was performed at the Advanced Photon Source (Argonne National Laboratory). Solid-liquid interface velocities were directly measured and thermal gradients were modeled. Ex-situ characterization was also performed to understand solidification with processing, crystallographic and chemical composition variations. MURI and AUSMURI Collaborative Research. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Solidification, Copper / Nickel / Cobalt |