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PROCESS PARAMETERS AND THE STRUCTURE OF MAG PULSED DUPLEX STAINLESS STEEL WELDED JOINTS

1 URLAN Sorin Dumitru
Co-authors:
1 MITELEA Ion 1 UȚU Ion-Dragoș 2 KARANCSI Olimpiu 1 BURCĂ Mircea
Institutions:
1 University Politehnica Timisoara, Timisoara, Romania, EU, sorinurlan@yahoo.com, ion.mitelea@upt.ro, dragos.utu@upt.ro, mircea.burca@upt.ro
2 Victor Babes University of Medicine and Pharmacy Timisoara, Timişoara, Romania, EU, olimpiu.karancsi@dentalexpert.ro
Conference:
25th Anniversary International Conference on Metallurgy and Materials, Hotel Voronez I, Brno, Czech Republic, EU, May 25th - 27th 2016
Proceedings:
Proceedings 25th Anniversary International Conference on Metallurgy and Materials
Pages:
873-878
ISBN:
978-80-87294-67-3
ISSN:
2694-9296
Published:
14th December 2016
Proceedings of the conference were published in Web of Science and Scopus.
Metrics:
376 views / 201 downloads
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Abstract

The paper sets out a synergic program by MAG pulsed welding of Duplex stainless steel plates with thickness of 12 mm. The selected filler material was a E2209-16 wire with a diameter of 1.2 mm and as shielding gas Cronigon 2 was used.The root layer was obtained at lower linear energy, of 6.9 kJ/cm, and for the filling layers the heat input was different namely: 10 kJ/cm, 15 kJ/cm and 20.7 kJ/cm. Macro- and micrographic analysis showed that variation of linear energy for obtaining the filling layers, by reducing the welding speed or increasing the welding current, permitted the obtaining of welded joints without continuous metallic defects and of a free defects surface such as marginal notches.

Keywords: MAG pulsed welding, structure, duplex stainless steel

© This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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