Underwater Welding of Duplex Stainless Steel

Jerzy Łabanowski; Dariusz Fydrych; Grzegorz Rogalski; Krzysztof Samson

doi:10.4028/www.scientific.net/SSP.183.101

Paper Titles

The Effect of Low-Temperature Glow Discharge Nitriding of Duplex Stainless Steel on Absorption and Desorption of Hydrogen
p.71

Quality Investigation of Au Nanoarrays for Biosensing Application
p.81

Preparation and Characterization of TiO₂ Nanostructures for Catalytic CO₂ Photoconversion
p.89

Influence of Type of Material on Performance of Hydraulic Components in Thermal Shock Conditions
p.95

Underwater Welding of Duplex Stainless Steel
p.101

Degradation of Gel-Coat Layer in Glass/Polyester Laminate in Seawater Environment
p.107

Effect of Crystallization Process at Cryogenic Conditions on the Functional Properties of the SUPERSTON Alloy Used in Production the Ship’s Propellers
p.111

Microbial Aspects in Corrosion Studies of Stainless Steels
p.117

Numerical Modeling of Magnetorheological Elastomers Microstructure Behavior under Magnetic Field
p.125

HomeSolid State PhenomenaSolid State Phenomena Vol. 183Underwater Welding of Duplex Stainless Steel

Underwater Welding of Duplex Stainless Steel

Abstract:

The present work was conducted to assess the weldability of duplex stainless steel at underwater conditions. Interest of underwater welding of this steel grade is connected with necessity of preparing welding repair technologies for subsea pipelines widely used in offshore oil and gas industry. The GMA local cavity welding method was used in the investigations. Welded beads were performed underwater at 0.5 m depth and in the air. Metallographic examinations of welds, ferrite content assessment in microstructure and hardness test were performed. The good weldability at underwater conditions of duplex stainless with the use of GMA local cavity method was confirmed.

You might also be interested in these eBooks

Environmental Degradation of Engineering Materials & Materials Engineering and Technologies

View Preview

Info:

Periodical:

Solid State Phenomena (Volume 183)

Pages:

101-106

DOI:

https://doi.org/10.4028/www.scientific.net/SSP.183.101

Citation:

Cite this paper

Online since:

December 2011

Authors:

Jerzy Łabanowski, Dariusz Fydrych, Grzegorz Rogalski, Krzysztof Samson

Keywords:

Duplex Stainless Steel, Underwater Welding

Export:

RIS, BibTeX

Price:

Permissions:

Request Permissions

References

[1] Recommended Practice DNV-RP-F-113, Pipeline Subsea Repair, DNV, October (2007).

Google Scholar

[2] Offshore standard DNV-OS-F101, Submarine Pipelines Systems, DNV, January (2000).

Google Scholar

[3] J. Labanowski: Development of underwater welding. Welding Review, 10, 2008, pp.55-58 (in Polish).

Google Scholar

[4] J. Labanowski, D. Fydrych, G. Rogalski: Underwater welding - a review. Advances in Materials Science, Vol. 8, 3 (17), 2008, pp.11-22.

Google Scholar

[5] Fydrych: Effect of welding conditions on susceptibility to cold cracking of welds obtained under water. Ph. D. thesis. Gdańsk University of Technology, Gdańsk 2005 (in Polish).

Google Scholar

[6] G. Rogalski: Determination of welding thermal cycles during underwater welding. Proceedings of Doctorate Studies Conference, Gdańsk 2003 (in Polish).

Google Scholar

[7] J. Charles: Super duplex stainless steels: Structure and properties. Proc. Conf. DuplexStainless Steels '91, Beaune, France, Publ. Les Editions de Physique, (1991).

Google Scholar

[8] J. Labanowski: Duplex steels – new material for chemical processing industry. Engineering and Chemical Equipement, 2, 1997, pp.3-10 (in Polish).

Google Scholar

[9] O. M. Akselsen, H. Fostervoll, C.H. Ahlen: Hyperbaric GMA welding of duplex stainless steel at 12 and 35 bar. Welding Journal, Vol. 88, February 2009, pp.21-28.

Google Scholar