| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
High Performance Steels
|
| Presentation Title |
Numerical Study on the Flow and Degassing Behavior of High Performance Steel in Vacuum Tank Degasser |
| Author(s) |
Jiang Zhong, Jin Xu, Ruorong Zhou, Diqiang Luo |
| On-Site Speaker (Planned) |
Jiang Zhong |
| Abstract Scope |
The entire refining process in practical VD production often relies on artificial experience, and the detailed field information inside the reactor remains unclear. Therefore, a two-phase Eulerian model with considering degassing dynamics has been developed to investigate the flow field and degassing rate in a full-scale industrial vacuum degasser. The model has been verified through physical water modeling and industrial Riva production data, demonstrating that the computational results of this model are consistent with the measurements. The model includes three potential dehydrogenation sites: the surface of argon bubbles, the free surface of the molten steel, and the bulk steel near the bath surface. The results indicate that reducing the vacuum pressure can increase the total hydrogen removal ratio in molten steel. The endpoint of the dehydrogenation reaction is not affected by the initial hydrogen content. Increasing the argon flow rate enhances dehydrogenation rates and reduces processing time. |
| Proceedings Inclusion? |
Planned: |