Influence of argon pollution on the weld surface morphology

G. M. Krolczyk, P. Nieslony, J. B. Krolczyk, I. Samardzic, S. Legutko, S. Hloch, S. Barrans, R. W. Maruda

Research output: Contribution to journalArticlepeer-review

53 Citations (Scopus)


In this paper the surfaces of butt welded joints in steel tubes were analyzed using an optical 3D measurement system to determine the morphology and topographic parameters. It was established that pollution of the argon shield gas with oxygen did not influence the width of the heat-affected zone. However, the composition of the shield gas significantly influenced the surface asymmetry, Ssk, and its inclination Sku. The measurement of these parameters enabled the selection of a higher quality surface, which was visually proven by the reduction in discoloration of the surface of the weld joint. High quality surfaces eliminate a potential habitat for bacteria and a future source of corrosion as well as providing less resistance to fluid flow.

Original languageEnglish
Pages (from-to)203-213
Number of pages11
JournalMeasurement: Journal of the International Measurement Confederation
Early online date16 Apr 2015
Publication statusPublished - 1 Jun 2015


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