| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
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| Symposium
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Additive Manufacturing and Alloy Design: Bridging Fundamental Physical Metallurgy, Advanced Characterization Techniques, and Integrated Computational Materials Engineering for Advanced Materials
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| Presentation Title |
Formation of Al(Fe,Mn)Si Nano-Scale Precipitates in WAAM Aluminum |
| Author(s) |
Jacob Aljundi, Aditya Pulipaka, Mo-Rigen He, Kevin Hemker |
| On-Site Speaker (Planned) |
Jacob Aljundi |
| Abstract Scope |
Wire-arc additive manufacturing (WAAM) is an adaptable manufacturing process which meets the demands of Naval applications while offering a cost-effective substitute for traditional manufacturing processes and unique processing routes for improving aluminum performance. This research attempts to utilize traditionally undesirable aluminum alloys to reduce grain texture, promote equiaxed microstructures, and maintain strength at elevated temperatures. This will be accomplished through semi-coherent nanoscale precipitates that promote recrystallization and provide strength via Orowan bowing. Tailoring the precipitates with compositional control and printing parameters will be discussed. Thermo-Calc-Python modeling aided selection of alloy compositions, and three were drawn into wires and deposited via WAAM. Simufact Additive thermal history models will be compared to experimental techniques to predict microstructural evolution. The microstructural and mechanical characteristics of deposited material will be shown and interpreted as functions of the volume fraction and morphology of Al(Fe,Mn)Si precipitates. Milli-scale tensile testing is being performed from ambient to 450°C. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Aluminum, Characterization |