About this Abstract |
| Meeting |
2027 TMS Annual Meeting & Exhibition
|
| Symposium
|
Fundamentals of Sustainable Metallurgy and Materials Science
|
| Presentation Title |
Oxide-Derived Manganese Alloying in an Iron Matrix for Solid-State Steelmaking |
| Author(s) |
Zhaozhen Huang, Pei Sun, Zhigang Zak Fang |
| On-Site Speaker (Planned) |
Zhaozhen Huang |
| Abstract Scope |
Direct reduction of manganese oxide to metallic Mn by hydrogen alone is thermodynamically limited under solid-state steelmaking conditions, making Mn incorporation from oxide precursors challenging. This work investigates the reduction and alloying behavior of MnO2-containing powder mixture under different reducing environments and in the presence of an Fe matrix. Thermodynamic modeling, TGA-DSC, in-situ synchrotron XRD, interrupted sintering experiments, and SEM-EDS characterization were used to examine phase evolution, mass-change behavior, and manganese distribution during heating. The results suggest that manganese oxide reduction proceeds in a step-wise manner, with both the reducing atmosphere and the surrounding metallic matrix influencing oxide transformation and the alloying process. Overall, the findings indicate that coupled effects among atmosphere, reductant, and matrix can facilitate oxide-derived Mn incorporation into solid-state processed steels. This study provides insight into the use of manganese oxide precursors as a possible alloying route for low-carbon solid-state steelmaking. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Iron and Steel, Powder Materials, Sustainability |