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 |
Designing a Wire Feedstock from Recycled Aluminum for Additive Manufacturing |
Author(s) |
Jamie McIntyre, John Carsley, Jonah Klemm-Toole |
On-Site Speaker (Planned) |
Jamie McIntyre |
Abstract Scope |
There is a clear need for more sustainable materials production. Aluminum alloys are readily recycled; however, end-of-life scrap streams contain significant amounts of impurity elements that must be sorted, refined or segregated prior to manufacturing of future products. “Twitch” is a classification of aluminum scrap from which much of excess ‘other’ materials have been segregated. The purpose of this study is to convert the twitch scrap stream into a value stream by producing a wire feedstock for welding and additive manufacturing applications. However, designing aluminum alloy feedstocks for additive manufacturing and welding is challenging because of their susceptibility to solidification cracking. Additionally, elements like Si, Fe, and Cu accumulate and form secondary phases which may deteriorate ductility of the twitch material. This presentation is focused on solidification cracking susceptibility of the twitch composition, as well as microstructural evolution and mechanical properties of the twitch alloy processed with additive manufacturing. |
Proceedings Inclusion? |
Planned: |
Keywords |
Additive Manufacturing, Aluminum, Solidification |