Study on tensile and fatigue failure in the low-hardness zone of AA2519-T62 FSW joint Robert Kosturek, Tomasz Slezak, Janusz Torzewski, Marcin Wachowski and Lucjan Sniezek Manufacturing Rev., 9 (2022) 25 Published online: 23 August 2022 DOI: 10.1051/mfreview/2022023