Published 07/03/2025 at 867 × 178 in A combined full-field imaging and metallography approach to assess the local properties of friction stir welded (FSW) copper-stainless steel joints Fig. 2 Microhardness 2D-contour map of Cu-SS FSW joint over the region shown in Fig. 1 Fig. 2 Microhardness 2D-contour map of Cu-SS FSW joint over the region shown in Fig. 1