About this Abstract |
Meeting |
2024 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2024)
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Symposium
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2024 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2024)
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Presentation Title |
Characterizing the use of Low-cost Steelmaking Feedstocks for Refining ElectroSlag Additive Manufacturing (RESAM) |
Author(s) |
Adam G. Stevens, Rangasayee Kannan, Vanshika Singh, Brian Hicks, Bryan Lim, Sarah Graham, Soumya Nag, Peeyush Nandwana, Sudarsanam S. Babu, Brian K. Post |
On-Site Speaker (Planned) |
Brian Hicks |
Abstract Scope |
Feedstock costs and build rates are major roadblocks in addressing the supply chain constraints facing renewable energy castings with large-format metal additive manufacturing (AM). Compared to powders and welding wire, steelmaking feedstocks have significantly lower cost per unit mass but require refining to produce target alloys. Initial experiments were conducted to evaluate the refining abilities of the electroslag welding process with direct reduced iron (DRI) feedstocks and simulants in a molten slag bath and have demonstrated production of an iron phase of >98% purity. We compare furnace experiments with thermodynamic calculations and process kinetics to predict processing parameters at scale and conclude with a vision for further development of an in-situ refining electroslag additive manufacturing (RESAM) system for the high-throughput processing and alloying of low-cost steelmaking feedstocks. |
Proceedings Inclusion? |
Definite: Post-meeting proceedings |