Abstract
Phosphorus transfer behavior has been systematically investigated by submerged arc welding of EH36 shipbuilding steel with CaF2–TiO2–CaO fluxes. Dephosphorization could be induced when the CaO content is higher than 15.7 mass pct; otherwise, phosphorus uptake may occur. Coupling actual welding process with thermodynamic calculations, it is found that the major driving force enabling phosphorus transfer is largely governed by the activity difference between hypothetical P2O5 in the flux and that equilibrated with the weld metal.
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The authors sincerely thank the National Natural Science Foundation of China (Grant Nos. U20A20277, 52150610494, 52104295, 52011530180 and 52050410341), and Research Fund for Central Universities (Grant Nos. N2125016 and N2025025).
On behalf of all authors, the corresponding author states that there is no conflict of interest.
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Zhong, M., Li, T., Basu, S. et al. Phosphorus Transfer Behaviors Induced by CaF2–TiO2–CaO Fluxes in EH36 Shipbuilding Steel Subject to High Heat Input Submerged Arc Welding. Metall Mater Trans B 53, 2774–2778 (2022). https://doi.org/10.1007/s11663-022-02607-1
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DOI: https://doi.org/10.1007/s11663-022-02607-1