Edwards, L.; Bouchard, P.J.; Dutta, M.; Wang, D.Q.; Santisteban, J.R.; Hiller, S. and Fitzpatrick, M.E.
Direct measurement of the residual stresses near a 'boat-shaped' repair in a 20 mm thick stainless steel tube butt weld.
International Journal of Pressure Vessels and Piping, 82(4),
Neutron diffraction measurements have been performed to quantify directly the three-dimensional residual stress field in a stainless steel pipe girth weld containing a part-circumference weld repair. Adjacent to the repair, the measured through-wall axial stress profile was found to be membrane in character and of tensile magnitude equal to about 60% of the base metal 1% proof stress. The measurements show that the repair procedure substantially increased axial and hydrostatic components of residual stress in the neighbouring heat-affected zone.
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