| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
High Temperature Electrochemistry: An FMD Symposium Honoring Uday B. Pal
|
| Presentation Title |
Unraveling the Essence of Welding Flux Sustainability Towards High Heat Input Applications |
| Author(s) |
Cong Wang, Huiyu Tian, Zhanjun Wang |
| On-Site Speaker (Planned) |
Cong Wang |
| Abstract Scope |
Welding fluxes are essential components contributing to satisfactory performance of end-user products. However, achieving sustainability of welding fluxes has been considered unattainable due to significant compositional and functional changes. Current technical challenges could stem from limited understanding of thermodynamic factors, including chemical reactions and transfer of elements between the molten slag and the welding pool. Performance of fused flux systems has been investigated. The results demonstrate synergistic effects of SiO2 and MnO on higher partial pressures of gases, resulting in improved oxygen levels in the weld pool and enhanced activity of oxides at the slag–metal interface. Accumulation of FeO in the welding slags emerges as the most influential factor between the molten flux and the welding pool, thereby facilitating oxygen transfer to the weld metal. Well-designed contents of SiO2 and MnO in the welding flux can fine-tune FeO in the welding slag, offering a reliable approach for flux sustainability. |
| Proceedings Inclusion? |
Planned: |