About this Abstract |
Meeting |
2024 TMS Annual Meeting & Exhibition
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Symposium
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Additive Manufacturing: Advanced Characterization with Synchrotron, Neutron, and In Situ Laboratory-scale Techniques III
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Presentation Title |
Alloy Design for Additive Manufacturing |
Author(s) |
Matthew J. Kramer, Qiang Li, Feng Zhang, Micael Glazoff, Andrew Chuang, Emrah Simsek, Wenjie Wang, Iver Anderson, Ryan Ott |
On-Site Speaker (Planned) |
Matthew J. Kramer |
Abstract Scope |
Developing new alloys for additive manufacturing (AM) requires understanding their phase evolution during the melting and the solidification process for both the feedstock synthesis (e.g., gas atomization) as well as AM processing. Using thermodynamic modeling combined with molecular dynamics and density functional theory (DFT), we developed a family of alloys based on Al-Ce-Cu-Mn for improved thermodynamic stability of the precipitate phases for enhanced strength at elevated temperature. Cast and gas atomized alloys were fabricated and analyzed using ex situ electron microcopy and in situ high energy synchrotron diffraction. The phase selection and microstructural evolution varied between the casting and atomization consistent with the differences in the cooling rates. DFT predictions confirmed by XRD reveal a complex tetragonal phase with large solubility range for Al and Cu was key to controlling the properties of this alloy. |
Proceedings Inclusion? |
Planned: |
Keywords |
Additive Manufacturing, Aluminum, Characterization |