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Optimising Quality and Productivity in Welding of Duplex and Superduplex Stainless Steels
University West, Department of Engineering Science, Division of Manufacturing Processes. (Welding technology, PTW)ORCID iD: 0000-0003-3374-6282
University West, Department of Engineering Science, Division of Manufacturing Processes. (PTW)ORCID iD: 0000-0001-8822-2705
University West, Department of Engineering Science, Division of Manufacturing Processes. (PTW)ORCID iD: 0000-0003-2560-0531
University West, Department of Engineering Science, Division of Manufacturing Processes. (PTW)ORCID iD: 0000-0002-0234-3168
2014 (English)In: Proceedings of the 6th International Swedish Production Symposium 2014 / [ed] Stahre, Johan, Johansson, Björn & Björkman, Mats, 2014, p. 1-7Conference paper, Published paper (Refereed)
Abstract [en]

The aim of this work was to study the influence of shielding gases and welding positions on properties of duplex and superduplex stainless steel circumferential pipe welds. Corrosion resistance, microstructural features and weld defects were assessed and related to the welding procedures. Horizontal and vertical upward welding positions produced high quality welds. However, welding in the overhead position resulted in less good results in terms of porosity and corrosion resistance. Shielding gases containing 30% helium showed best results, whilst using a mixture Ar+2%CO2 resulted in undercuts and porosity in all welding positions.

Place, publisher, year, edition, pages
2014. p. 1-7
Keywords [en]
Duplex, superduplex, stainless steel, Gas Metal Arc Welding, shielding gas.
National Category
Materials Engineering
Research subject
ENGINEERING, Manufacturing and materials engineering; Production Technology; Production Technology
Identifiers
URN: urn:nbn:se:hv:diva-6718ISBN: 978-91-980974-1-2 (print)OAI: oai:DiVA.org:hv-6718DiVA, id: diva2:753677
Conference
6th Swedish Production Symposium, 2014, Gothenburg
Available from: 2014-10-08 Created: 2014-09-30 Last updated: 2018-08-12Bibliographically approved

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Länk till SPS 2014 Online Open Access ProceedingsLänk till konferens och program med abstract

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Valiente Bermejo, María AsunciónKarlsson, LeifSvensson, Lars-ErikHurtig, Kjell

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