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Title: Neutron diffraction residual stress measurements in a 316L stainless steel bead-on-plate weld specimen.
Authors: Pratihar, S
Turski, M
Edwards, L
Bouchard, PJ
Keywords: Residual Stresses
Stainless Steels
Welded Joints
Neutron Diffraction
Stress Analysis
Issue Date: Jan-2009
Publisher: Elsevier
Citation: Pratihar, S., Turski, M., Edwards, L., & Bouchard, P. J. (2009). Neutron diffraction residual stress measurements in a 316L stainless steel bead-on-plate weld specimen. International Journal of Pressure Vessels and Piping, 86(1), 13-19. doi:10.1016/j.ijpvp.2008.11.010
Abstract: The distribution of residual stress in three orthogonal directions has been measured within a Type 316L austenitic stainless steel bead-on-plate weld specimen. Neutron diffraction was employed using the ENGIN-X instrument, located at the ISIS spallation facility of the Rutherford Appleton Laboratory, UK. A stress-free lattice parameter reference value was determined from a small cube, extracted from a far corner of the plate. A high magnitude of tensile residual stress was found along the weld bead in the longitudinal and transverse directions. The distributions of stress along through-thickness lines at the weld bead nominal start and stop locations and at the mid-length position showed an almost identical stress variation. However, a map of measured residual strain in the transverse direction beneath the weld bead revealed a concentration of strain located several millimetres before the nominal weld stop position where through-wall stress profiles were measured. © 2009, Elsevier Ltd.
ISSN: 0308-0161
Appears in Collections:Journal Articles

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