Paper Title:

Residual Stress Measurements in Single and Multi-Pass Groove Weld Specimens Using Neutron Diffraction and the Contour Method

Periodical Materials Science Forum (Volumes 524 - 525)
Main Theme Residual Stresses VII, ECRS7
Edited by W. Reimers and S. Quander
Pages 671-676
DOI 10.4028/www.scientific.net/MSF.524-525.671
Citation M. Kartal et al., 2006, Materials Science Forum, 524-525, 671
Online since September, 2006
Authors M. Kartal, Mark Turski, Greg Johnson, Michael E. Fitzpatrick, S. Gungor, Philip J. Withers, Lyndon Edwards
Keywords Contour Method, Neutron Diffraction, Residual Stress, Welding
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This paper describes the measurement of longitudinal residual stresses within specially designed 200x180x25mm groove weld specimens. The purpose of these measurements was to compare the residual stress field arising from single and multi-pass weld beads laid down within the constraint of a groove in order to validate finite element simulations of the welding process. Measurements were made over the cross section at the mid-bead length, utilising the relatively new Contour method and neutron diffraction. Results from these measurements indicate a larger peak tensile longitudinal residual stresses within the weld region of the multi-pass weld sample. Good agreement is found between both techniques.

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