About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Fundamentals of Sustainable Metallurgy and Processing of Materials
|
| Presentation Title |
Hydrogen-Based Reduction of Metal Oxides for Sustainable Net-Shape Light-weight Alloy Steel Production |
| Author(s) |
Samrin Saiyara, Cole Burton, Robert F. Speyer, Naresh Thadhani, Josh Kacher |
| On-Site Speaker (Planned) |
Samrin Saiyara |
| Abstract Scope |
Hydrogen reduction of metal oxides offers a promising pathway for efficient production of steels. We are investigating a process intensification approach involving extrusion-based net shape fabrication of stainless and maraging steels starting with oxide components followed by subsequent reduction resulting in the metal/alloy product. Oxide powders pressed into pellets or extruded as linear cellular honeycomb cross sections were reduced under controlled hydrogen atmospheres, with reduction kinetics and phase changes monitored using TGA, XRD, and SEM. To overcome incomplete reduction resulting from the high stability of Cr₂O₃ and the limitation of H₂ diffusion, wedge-shaped samples were used to directly relate the hydrogen penetration depth to the reduction extent. Testing of the extruded net-shaped products relevant to mechanical load-bearing and heat-dissipating structures was also performed to compare their performance with conventionally processed steels. In this presentation, we will describe the process intensification approach for fabrication of net-shaped products and results attained to-date. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Sustainability, Iron and Steel, |