The Paton Welding Journal, 2004, №03

2004 №03 (01)

2004 №03 (03)

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The Paton Welding Journal, 2004, #3, 7-14 pages

Effect of metallurgical characteristics of flux on structure and phase composition of high-strength weld metal

G.M. Grigorenko, V.V. Golovko, V.F. Grabin, V.A. Kostin

E.O. Paton Electric Welding Institute of the NASU 11 Kazymyr Malevych Str., 03150, Kyiv, Ukraine.

Abstract
It was established that reduction in oxygen potential of a welding flux promotes a change in the content of alloying elements in acicular ferrite and decrease in size of inclusions forming in low-alloy high-strength weld metal. In use of fluxes with a low oxygen potential the integrated deoxidation by aluminium and titanium leads to the decrease in molybdenum content in the acicular ferrite and increase in the brittle fracture resistance of the weld metal.
Keywords: arc welding, fluxes, oxygen potential, weld metal, microstructure, acicular ferrite, nоn-metallic inclusions, activity of elements

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Suggested Citation

G.M. Grigorenko, V.V. Golovko, V.F. Grabin, V.A. Kostin (2004) Effect of metallurgical characteristics of flux on structure and phase composition of high-strength weld metal. The Paton Welding J., 03, 7-14.

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