Journal
METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE
Volume 53, Issue 3, Pages 1329-1334Publisher
SPRINGER
DOI: 10.1007/s11663-022-02480-y
Keywords
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Funding
- National Natural Science Foundation of China [U20A20277, 52104295, 52011530180, 52050410341]
- Royal Academy of Engineering [TSPC1070]
- Research Fund for Central Universities [N2125003, N2025025]
- Regional Innovation Joint Fund of Liaoning Province [2020-YKLH-39]
- Open Foundation of State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing [KF21-02]
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The study found that fused CaF2-SiO2-CaO-TiO2 fluxes can effectively join EH36 shipbuilding steel under high heat input submerged arc welding. Increasing TiO2 addition enhances the transfer of Si and O, although Si transfer is also dependent on SiO2 activity. A unique neutral point is identified in terms of Ti transfer.
Fused CaF2-SiO2-CaO-TiO2 fluxes are designed and applied to join EH36 shipbuilding steel under high heat input submerged arc welding. Pertinent elemental transfer behaviors of major alloying elements are quantified and possible chemical reactions have been postulated. It is found that transfer of Si and O is enhanced by increasing TiO2 addition, although that of Si is concurrently dependent on SiO2 activity. Furthermore, a unique neutral point is identified with regard to Ti transfer.
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