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Residual stress characterization of single and triple-pass autogenously welded stainless steel pipes
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Haigh, R. D., Hutchings, M. T., Fitzpatrick, M. E., James, J. A., Okido, S., Mizuno, R., Ogawa, K. and Hughes, Darren J. (2016) Residual stress characterization of single and triple-pass autogenously welded stainless steel pipes. International Journal of Pressure Vessels and Piping, 144 . doi:10.1016/j.ijpvp.2016.05.003 ISSN 0308-0161.
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Official URL: http://dx.doi.org/10.1016/j.ijpvp.2016.05.003
Abstract
Using neutron diffraction the components of the residual stress field have been determined in the region near a mid-length groove in two identical austenitic stainless pipes in which weld beads had been laid down. One pipe sample had a single pass, and the second a triple pass, autogenous weld deposited around the groove circumference. The results show the effect on the stress field of the additional weld deposited and are compared to the results of Finite Element Modelling. The hoop stress component is found to be generally tensile, and greater in the triple pass weldment than in the single pass weldment. The hoop stresses reach peak values of around 400 MPa in tension. X-ray measurements of the residual stress components on the near inner surface of the pipe weldments are also presented, and show tensile stresses in both pipes, with a higher magnitude in the three-pass weldment.
Item Type: | Journal Article | ||||||||||
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Subjects: | T Technology > TA Engineering (General). Civil engineering (General) T Technology > TN Mining engineering. Metallurgy |
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Divisions: | Faculty of Science, Engineering and Medicine > Engineering > WMG (Formerly the Warwick Manufacturing Group) | ||||||||||
Library of Congress Subject Headings (LCSH): | Austenitic stainless steel -- Welding, Welded joints -- Testing | ||||||||||
Journal or Publication Title: | International Journal of Pressure Vessels and Piping | ||||||||||
Publisher: | Elsevier Ltd | ||||||||||
ISSN: | 0308-0161 | ||||||||||
Official Date: | August 2016 | ||||||||||
Dates: |
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Volume: | 144 | ||||||||||
DOI: | 10.1016/j.ijpvp.2016.05.003 | ||||||||||
Status: | Peer Reviewed | ||||||||||
Publication Status: | Published | ||||||||||
Access rights to Published version: | Restricted or Subscription Access | ||||||||||
Date of first compliant deposit: | 16 August 2016 | ||||||||||
Date of first compliant Open Access: | 24 May 2017 | ||||||||||
Funder: | Japan. Genshiryoku Anzen Kiban Kikō [Japan Nuclear Energy Safety] (JNES), Lloyd's Register Foundation |
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