Metalurgija (Apr 2016)
Phase analysis of fume during arc weld brazing of steel sheets with protective coatings
Abstract
The article presents the results of research of the phase identification and of the quantitative phase analysis of fume generated during Cold Metal Transfer (CMT), ColdArc and Metal Inert Gas / Metal Active Gas (MIG / MAG) weld brazing. Investigations were conducted for hot - dip coated steel sheets with zinc (Zn) and zinc-iron (Zn - Fe) alloy coatings. Arc shielding gases applied during the research-related tests were Ar + O2, Ar + CO2, Ar + H2 and Ar + CO2 + H2 gas mixtures. The analysis of the results covers the influence of the chemical composition of shielding gas on the chemical composition of welding fume.
