Fig. 5From: The effect of pin profiles on the microstructure and mechanical properties of underwater friction stir welded AA2519-T87 aluminium alloyTEM images of parent metal region and LHDR a. Parent metal. b. LHDR of FSW-THC. c. LHDR of UWFSW-THC. d. LHDR of FSW-TTC. e. LHDR of UWFSW-TTCBack to article page