2017 | AFC ACCOMPLISHMENTS 165 SS-Mini specimens and their location relative to the stir zone. Both the tensile properties and stress-strain curves were slightly affected by FSW.The room temperature yield and ultimate tensile stresses of SZ specimens were ~13% lower than that of the Unaffected Zone (UAZ) specimens, but the uniform and total elongations were unaffected by FSW. The distribution of strain observed along the four SS-Mini specimens is illustrated in Figure 2 for specimen #1 from the SZ.The distributions of strain along the specimen gage for 5 points (Figure 2a) observed in the force-elongation curve (Figure 2b).The strain distribution is homogeneous after yielding, but becomes localized in the gage during plastic deformation leading to necking until failure occurs. Strain rate maps for specimens #1 (SZ) and #4 (UAZ) indicated localized high strain rates formed and propagated along the gage during the tensile test before dissipating, which was consistent with deformation bands.The strain rates increased in localized regions of the gage after reaching the ultimate tensile stress.The localized strain rate intensity increased rapidly as necking proceeded until the specimen failed. Residual stress experiments were conducted on 4 hot-rolled 14YWT plates having different deformation magnitudes. Data was collected from neutron scattering scans in 3 orthog- onal directions on each plate to obtain residual stress data in the longitudinal (extrusion), traverse (rolling) and thickness directions. Preliminary results indicated that residual stresses increased with deformation magni- tude and rolling direction may affect the residual stresses.The residual stresses in the SZ caused by FSW will be determined in the future using the data from these experiments. Friction stir welding successfully produced a bead-on-plate stir zone in a 1 mm-thick plate of the advanced ODS 14YWT alloy that has been well characterized, which is promising for joining thin wall fuel tubing of advanced ODS alloys for next generation nuclear reactor technologies.