Residual stress determination in a dissimilar weld overlay pipe by neutron diffraction

► Determined residual stress distribution in a dissimilar weld overlay pipe. ► Consists of a ferritic (SA508), austenitic (F316L) steels, Alloy 182 consumable. ► Measured significant compression (−600 MPa) near the inner wall of overlay. ► Validate integrity of the inner wall for the pressurized nozzle nuclear structure.