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The objective of the research, through both an experimental and a modelling approach, was to determine the parameters controlling the nitrogen level in a weld microstructure and the corrosion properties. More particularly, the potential interests of microelectrode techniques has been investigated.

The model developed was based on the nitrogen exchange between the plasma, the weld pool and the shielding gas. It was first developed to describe nitrogen evolution during the stationary arc situation. The results were in good agreement with experiments. The model was then adapted to the case of welding with an active flux. An attempt was made to describe the travelling arc situation. However, some improvements are still necessary.

Additional information

Authors: COURDEUSE L, Industeel, Le Creusot (FR);BONNEFOIS B, Industeel, Le Creusot (FR);HERTZMAN S, Institutet for Metallforskning (SIMR), Stockholm (SE);WESSMAN S, Institutet for Metallforskning (SIMR), Stockholm (SE);LILJAS M, Avesta Polarit, Avesta (SE);BRORSON A, Avesta Polarit, Avesta (SE);SANCHEZ R, Acerinox, Los Barrios (ES);BASTIDAS J M, CENIM, Madrid (ES);OGLE K, IRSID, Maizieres-les-Metz (FR)
Bibliographic Reference: EUR 20949 EN (2004), 197 pp. Euro: 25
Availability: EUR-OP reference: KI-NA-20949-EN-S Available from EUR-OP sales agents URL:
ISBN: ISBN: 92-894-7735-0
Record Number: 200417646 / Last updated on: 2004-07-19
Original language: en
Available languages: en
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