About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Electrical Steels
|
| Presentation Title |
Hot Working Behavior and Mean Flow Stress Evolution of Fe-Si Electrical Steels With Varying Silicon Content |
| Author(s) |
Xabier Martinez, Nerea Isasti, Pello Uranga |
| On-Site Speaker (Planned) |
Pello Uranga |
| Abstract Scope |
The processing of high-silicon electrical steels remains a technological challenge due to their limited hot workability and complex deformation behavior. In this study, a series of laboratory-melted Fe-Si alloys containing 3 to 6.5% Si were investigated using hot torsion testing to assess their hot deformation response. A particular focus was placed on the evolution of mean flow stress (MFS) and the kinetics of microstructural softening as a function of silicon content. The combination of double-hit torsion tests and detailed microstructural characterization via optical microscopy and EBSD allowed for the differentiation between dynamic, static, and metadynamic softening mechanisms. Results indicate that increasing Si content significantly influences strain hardening and softening mechanisms. The findings contribute to a better understanding of the high-temperature workability limits of Fe-Si alloys and support the development of advanced processing strategies for next-generation electrical steels. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Iron and Steel, Characterization, Shaping and Forming |