Abstract
CaF2-SiO2-CaO-TiO2 fluxes have been designed and employed to submerged arc weld EH36 shipbuilding steel. Pathways for O gain and loss of weld metal have been quantitatively evaluated. Results revealed that O gain and loss increase with higher TiO2 content, but the value of O gain is slightly greater than that of O loss, resulting in a net increase for weld metal O. Such findings yield a fine-tuned strategy for formulating fluxes with lower O potential.
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Acknowledgments
The authors sincerely acknowledge the financial support from the National Natural Science Foundation of China (Grant Nos. U20A20277, 52104295, and 52150610494), National Key Research and Development Plan of China (Grant No. 2022YFE0123300), and the Young Elite Scientists Sponsorship Program by CAST (YESS) (Grant No. 2021-2023QNRC001).
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Zhang, Y., Liu, H., Coetsee, T. et al. Identifying Oxygen Transfer Pathways During High Heat Input Submerged Arc Welding: A Case Study into CaF2-SiO2-CaO-TiO2 Fluxes. Metall Mater Trans B 54, 2875–2880 (2023). https://doi.org/10.1007/s11663-023-02922-1
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DOI: https://doi.org/10.1007/s11663-023-02922-1