| 2001 №04 (01) | 2001 №04 (03) |
The Paton Welding Journal, 2001, #4, 7-12 pages
Chemical and structural inhomogeneity in the zone of fusion of low-carbon steel with austenitic weld during shielded-gas welding
V.P. Elagin, V.V. Snisar, M.M. Savitsky, G.N. Gordan, V.G. Vasiliev, L.K. Doroshenko
E.O. Paton Electric Welding Institute of the NASU 11 Kazymyr Malevych Str., 03150, Kyiv, Ukraine.Abstract
It is shown that a poor stirring of molten metal in the weld pool is one of the causes of increasing the chemical, structural and mechanical inhomogeneity in the zone of fusion of the low-carbon steel with an austenitic weld (at a low level of its alloying). The performance of welding in nitrogen- and oxygen-containing shielding media improves the metal stirring, thus leading to the decrease in the level of inhomogeneities in the zone of fusion of the low-carbon steel with an austenitic weld
Keywords: fusion zone, transition layer, austenitic weld, deposited bead, low-carbon steel, martensitic interlayer, chemical inhomogeneity, alloying elements, shielding gas, metal stirring, welding pool
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