| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Characterization of Minerals, Metals and Materials 2024: Process-Structure-Property Relations and New Technologies
|
| Presentation Title |
New Method for the Production of Medium-Mn Steel with Micro-segregation Bands Induced by Sub-rapid Solidification |
| Author(s) |
Hui Xu, Wanlin Wang, Peisheng Lyu, Lankun Wang |
| On-Site Speaker (Planned) |
Hui Xu |
| Abstract Scope |
Medium-Mn steel has important applications in the lightweight automotive industry due to its excellent comprehensive mechanical properties. However, the existence of cumbersome production steps, high energy consumption and severe macro-segregation seriously limits its industrial development. Hence, this study proposed a green-short method for producing medium-Mn steel with micro-segregation bands using sub-rapid solidification technology. Exclusive components were designed, and OM, SEM, EPMA, and EBSD techniques were used to characterize the microstructure distribution, grain orientation, and elemental micro-segregation of the as-cast strips. The phase transformation behavior and formation mechanism of Mn micro-segregation during the sub-rapid solidification process were deeply discussed. This work innovatively utilized the sub-rapid solidification characteristics to effectively avoid the macro-segregation problem of Mn, and cleverly transformed it into micro-segregation bands which were beneficial for mechanical properties. Furthermore, the design of short process provides valuable idea for the industrial production and application of medium-Mn steels. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Iron and Steel, Mechanical Properties, Process Technology |