Reduced Activation Ferritic-Martensitic steels (RAFMs) are the primary candidate structuralmaterial for the FDS series LiPb blankets for fusion reactors, in particular the Dual FunctionalLithium Lead Test Blanket Module (DFLL-TBM) for the ITER facility. We propose to carry out aseries of residual stress measurements on RAFM components with different welding techniquesand post weld treatments. The proposed experiments form parts of a larger research programmeled by the PI and funded by National Science Foundation China. In this programme, we areattempting to study the theory and technology of flawless welding, and the corrosion behavior ofwelds in liquid LiPb. The measured stresses will also be used to validate the numerical simulationof the welding process. Both the measurement results and simulations will help us evaluate andcontrol the residual stresses in RAFM welds.