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Please use this identifier to cite or link to this item: http://apo.ansto.gov.au/dspace/handle/10238/4898

Title: Residual stresses in P91 steel electron beam welds
Authors: Kundu, A
Bouchard, PJ
Kumar, S
Venkata, KA
Francis, JA
Paradowska, A
Dey, GK
Truman, CE
Keywords: NEUTRON DIFFRACTION
BEHAVIOR
PIPES
PHASE TRANSFORMATIONS
DISTRIBUTION
JOINTS
Issue Date: 1-Jan-2013
Publisher: Maney Publishing
Citation: Kundu, A., Bouchard, P. J., Kumar, S., Venkata, K. A., Francis, J. A., Paradowska, A., Dey, G. K., & Truman, C. E. (2013). Residual stresses in P91 steel electron beam welds. Science and Technology of Welding and Joining, 18 (1), 70-75.
Abstract: This paper describes the characterisation of residual stress in electron beam welded P91 ferritic‐martensitic steel plates (9 mm thick) by neutron diffraction and contour measurement methods. The novelty of the work lies in revealing the residual stress profile at a fine length scale associated with a similar to 1 mm wide fusion zone. A characteristic ‘M’ shaped distribution of stresses across the weld line is observed with high tensile peaks situated just beyond the heat affected zone/parent material boundary. Measured stresses close to the weld centreline are significantly less tensile than the adjacent peaks owing to martensitic phase transformation during cool down of the weld region. The effect of applying a second smoothing weld pass is shown to be undesirable from a residual stress standpoint because it increases the tensile magnitude and spread of residual stress. The results are suitable for validating finite element predictions of residual stress in electron beam welds made from ferritic‐martensitic steels. © 2013, Maney Publishing.
URI: http://dx.doi.org/10.1179/1362171812y.0000000076
http://apo.ansto.gov.au/dspace/handle/10238/4898
ISSN: 1362-1718
Appears in Collections:Journal Articles

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