Fine-Tuned Element Transfer Strategies for Ternary CaF2-SiO2-CaO Fluxes in Submerged Arc Welding: An Environmentally Friendly Approach

Submerged arc welding under high heat input has been conducted on EH36 plate employing two series of CaF 2 -SiO 2 -CaO-fused fluxes. The effects of CaO and SiO 2 on element transfer between slag and weld metal are systematically evaluated using thermodynamics. It is concluded that the substitution o...

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Veröffentlicht in:	Metallurgical and materials transactions. B, Process metallurgy and materials processing science Process metallurgy and materials processing science, 2020-08, Vol.51 (4), p.1350-1354
Hauptverfasser:	Zhang, Jin, Coetsee, Theresa, Dong, Hongbiao, Wang, Cong
Format:	Artikel
Sprache:	eng
Schlagworte:	Arc heating Calcium fluoride Calcium oxide Characterization and Evaluation of Materials Chemistry and Materials Science Communication Fluxes Materials Science Materials Science, Multidisciplinary Metallic Materials Metallurgy & Metallurgical Engineering Nanotechnology Science & Technology Silicon dioxide Slag Structural Materials Submerged arc welding Surfaces and Interfaces Technology Thin Films Weld metal
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Zusammenfassung:	Submerged arc welding under high heat input has been conducted on EH36 plate employing two series of CaF 2 -SiO 2 -CaO-fused fluxes. The effects of CaO and SiO 2 on element transfer between slag and weld metal are systematically evaluated using thermodynamics. It is concluded that the substitution of CaF 2 by CaO is an environmentally friendly approach to suppress the transfer of Si to weld metal and decrease the loss of Mn from weld metal to slag.
ISSN:	1073-5615 1543-1916
DOI:	10.1007/s11663-020-01879-9