A comparison of double sided friction stir welding in air and underwater for 6mm S275 steel plate

Philip Baillie, Stuart Campbell, Alexander Galloway, Stephen R. Cater, Norman McPherson

Research output: Contribution to conferencePaper

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Abstract

This study compared the mechanical and microstructural properties produced during friction stir welding (FSW) of S275 structural steel in air and underwater. Post weld tests assessed the tensile strength, micro-hardness, distortion, Charpy impact toughness and fatigue performance in each case. The study showed that there was no significant difference in the strength, hardness or fatigue life of the air and underwater specimens. However, Charpy impact toughness was shown to decrease for the underwater specimens and was attributed to a lower degree of recrystallization caused by the higher rate of heat loss experienced when welding underwater. Reduced angular and longitudinal distortion was observed in the underwater welded plate compared to the plate welded in air.
Original languageEnglish
Number of pages5
Publication statusPublished - 7 Aug 2014
EventInternational Conference on Materials and Product Technology, ICMPT14 - Loden Hotel, Vancouver, Canada
Duration: 7 Aug 20148 Aug 2014
http://www.waset.org/conference/2014/08/vancouver/ICMPT

Conference

ConferenceInternational Conference on Materials and Product Technology, ICMPT14
CountryCanada
CityVancouver
Period7/08/148/08/14
Internet address

Fingerprint

Friction stir welding
Steel
Fracture toughness
Underwater welding
Air
Fatigue of materials
Heat losses
Microhardness
Welds
Tensile strength
Hardness

Keywords

  • Charpy impact toughness
  • distortion
  • fatigue
  • friction stir welding (FSW)
  • micro-hardness
  • underwater

Cite this

Baillie, P., Campbell, S., Galloway, A., Cater, S. R., & McPherson, N. (2014). A comparison of double sided friction stir welding in air and underwater for 6mm S275 steel plate. Paper presented at International Conference on Materials and Product Technology, ICMPT14, Vancouver, Canada.
Baillie, Philip ; Campbell, Stuart ; Galloway, Alexander ; Cater, Stephen R. ; McPherson, Norman. / A comparison of double sided friction stir welding in air and underwater for 6mm S275 steel plate. Paper presented at International Conference on Materials and Product Technology, ICMPT14, Vancouver, Canada.5 p.
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Baillie, P, Campbell, S, Galloway, A, Cater, SR & McPherson, N 2014, 'A comparison of double sided friction stir welding in air and underwater for 6mm S275 steel plate' Paper presented at International Conference on Materials and Product Technology, ICMPT14, Vancouver, Canada, 7/08/14 - 8/08/14, .

A comparison of double sided friction stir welding in air and underwater for 6mm S275 steel plate. / Baillie, Philip; Campbell, Stuart; Galloway, Alexander; Cater, Stephen R.; McPherson, Norman.

2014. Paper presented at International Conference on Materials and Product Technology, ICMPT14, Vancouver, Canada.

Research output: Contribution to conferencePaper

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AU - Cater, Stephen R.

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N2 - This study compared the mechanical and microstructural properties produced during friction stir welding (FSW) of S275 structural steel in air and underwater. Post weld tests assessed the tensile strength, micro-hardness, distortion, Charpy impact toughness and fatigue performance in each case. The study showed that there was no significant difference in the strength, hardness or fatigue life of the air and underwater specimens. However, Charpy impact toughness was shown to decrease for the underwater specimens and was attributed to a lower degree of recrystallization caused by the higher rate of heat loss experienced when welding underwater. Reduced angular and longitudinal distortion was observed in the underwater welded plate compared to the plate welded in air.

AB - This study compared the mechanical and microstructural properties produced during friction stir welding (FSW) of S275 structural steel in air and underwater. Post weld tests assessed the tensile strength, micro-hardness, distortion, Charpy impact toughness and fatigue performance in each case. The study showed that there was no significant difference in the strength, hardness or fatigue life of the air and underwater specimens. However, Charpy impact toughness was shown to decrease for the underwater specimens and was attributed to a lower degree of recrystallization caused by the higher rate of heat loss experienced when welding underwater. Reduced angular and longitudinal distortion was observed in the underwater welded plate compared to the plate welded in air.

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Baillie P, Campbell S, Galloway A, Cater SR, McPherson N. A comparison of double sided friction stir welding in air and underwater for 6mm S275 steel plate. 2014. Paper presented at International Conference on Materials and Product Technology, ICMPT14, Vancouver, Canada.