The Paton Welding Journal, 2009, №02

2009 №02 (03)

2009 №02 (05)

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The Paton Welding Journal, 2009, #2, 16-18 pages

Peculiarities of desulphurisation of weld metal in flux-cored wire welding

V.N. Shlepakov, S.M. Naumejko

E.O. Paton Electric Welding Institute, NASU, Kiev, Ukraine  
 
Abstract
Metallurgical methods intended to decrease the sulphur content of the weld metal in flux-cored wire welding were studied. The possibility of decreasing the content of sulphur in metal by using magnesium- and calcium-containing master alloys is shown. The prospects for improvement of mechanical properties of welded joints through decreasing the sulphur content of the deposited metal are considered.  
 
Keywords: arc welding, flux-cored wire, low-alloyed weld metal, desulphurisation, weld pool stage, droplet stage, thermodynamics of desulphurisation reactions, calcium- and magnesium- containing master alloys, mechanical properties, structure of weld metal
 
 
Received:                19.09.08
Published:               28.02.09
 
 
References
1. Vikhlevshchuk, V.A., Kharakhulakh, V.S., Brodsky, S.S. (2000) Ladle final treatment of steel. Dnepropetrovsk: Systemn. Tekhnologii.
2. Onishchuk, V.P., Kirilenko, V.V., Dyudkin, D.A. et al. (2000) Out-of-furnace treatment of molten steel with flux-cored alumocalcium wire. Metall i Litio Ukrainy, 1/2, 20-23.
3. Pidgaetsky, V.V. (1970) Pores, inclusions and cracks in welds. Kyiv: Tekhnika.
4. Pokhodnya, I.K., Gavrilyuk, Yu.A., Orlov, L.N. (1989) Desulphurisation of metal in flux-cored wire welding. Avtomatich. Svarka, 11, 47-50.
5. Pokhodnya, I.K., Suptel, A.M., Shlepakov, V.N. (1972) Flux-cored wire welding. Kiev: Naukova Dumka.
6. Kireev, V.A. (1975) Methods for practical calculations in thermodynamics of chemical reactions. Moscow: Khimiya.
7. Vladimirov, L.P. (1970) Thermodynamic calculations of equilibrium of metallurgical reactions. Moscow: Metallurgiya.
8. (1981) Thermodynamic properties of individual materials: Refer. Book. Vol. 3: Elements B, Al, Ca, Th, Ti, Be, Ba and their compounds. Book 2. Tables of thermodynamic properties. Moscow: Nauka.

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Suggested Citation

V.N. Shlepakov, S.M. Naumejko (2009) Peculiarities of desulphurisation of weld metal in flux-cored wire welding. The Paton Welding J., 02, 16-18.

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