Electrochemical Removal of Hydroxyl and Diffusible Hydrogen in Aluminum Fluoride Slags of Welding Flux-Cored Wires

This paper presents the scientific and technological principles of electrochemical removal of diffusible hydrogen by reactions of hydroxyl and hydrogen in molten aluminum fluoride slag and in the gas phase. A model was proposed for the electrochemical processes in the weld pool with the formation of...

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Veröffentlicht in:	Doklady. Chemistry 2022-06, Vol.504 (2), p.118-121
Hauptverfasser:	Rudskoi, A. I., Parshin, S. G.
Format:	Artikel
Sprache:	eng
Schlagworte:	Aluminum fluorides Bainitic steel Chemical reactions Chemical Technology Chemistry Chemistry and Materials Science Chemistry/Food Science Cryolite Flux cored wires Inclusions Industrial Chemistry/Chemical Engineering Mechanical properties Slag Titanium dioxide Vapor phases Weld metal pool Welded joints Welding fluxes
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Beschreibung
Zusammenfassung:	This paper presents the scientific and technological principles of electrochemical removal of diffusible hydrogen by reactions of hydroxyl and hydrogen in molten aluminum fluoride slag and in the gas phase. A model was proposed for the electrochemical processes in the weld pool with the formation of aluminum fluoride polymer clusters in TiO 2 –CaF 2 –Na 3 AlF 6 slag to reduce the content of diffusible hydrogen, decrease the volume of slag inclusions, and improve the mechanical properties of bainitic steel welded joints.
ISSN:	0012-5008 1608-3113
DOI:	10.1134/S0012500822700033