A primary consideration in the welding of structures for service in Canadian offshore and arctic regions is the toughness of weld metals required at very low ambient temperatures (−30°C to −60°C). To assess the suitability of cored wires for applications in these environments, some currently available commercial consumables for the flux-cored arc welding (FCAW) process were evaluated. Cored wires belonging to four different categories: basic, rutile, metal-cored and innershield, were used to prepare welds with similar welding procedures. Weld metal Charpy V-notch (CVN) and crack tip opening displacement (CTOD) tests were carried out and the effect of weld metal composition, microstructure and inclusion content in the weld metal toughness was examined. The Charpy transition temperatures and the CTOD toughness results indicated that, of the 16 wires tested, there were only seven that would be suitable for critical applications.
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February 1993
Research Papers
Evaluation of FCAW Consumables for Offshore and Arctic Structure Fabrication
S. R. Bala,
S. R. Bala
Welding Institute of Canada, Oakville, Ontario, Canada
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L. Malik,
L. Malik
Fleet Technology Ltd., Kanata, Ontario, Canada
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J. E. M. Braid
J. E. M. Braid
Metals Technology Laboratories, CANMET, Ottawa, Ontario, Canada
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S. R. Bala
Welding Institute of Canada, Oakville, Ontario, Canada
L. Malik
Fleet Technology Ltd., Kanata, Ontario, Canada
J. E. M. Braid
Metals Technology Laboratories, CANMET, Ottawa, Ontario, Canada
J. Offshore Mech. Arct. Eng. Feb 1993, 115(1): 76-82 (7 pages)
Published Online: February 1, 1993
Article history
Received:
July 24, 1990
Revised:
July 7, 1992
Online:
June 12, 2008
Citation
Bala, S. R., Malik, L., and Braid, J. E. M. (February 1, 1993). "Evaluation of FCAW Consumables for Offshore and Arctic Structure Fabrication." ASME. J. Offshore Mech. Arct. Eng. February 1993; 115(1): 76–82. https://doi.org/10.1115/1.2920094
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