Figure 2.
(a) Typical weld macrostructure of 6061–T6 Al alloy in FSW, (b) microstructure of the joint-stir zone (DXZ, dynamic recrystallized zone), TMAZ, HAZ, and BM taken at yellow square marks shown in (a) [27].
(a) Typical weld macrostructure of 6061–T6 Al alloy in FSW, (b) microstructure of the joint-stir zone (DXZ, dynamic recrystallized zone), TMAZ, HAZ, and BM taken at yellow square marks shown in (a) [27].