“E XPERIMENTAL AND NUMERICAL STUDY OF 6061-T6 AL- ALLOY FATIGUE LIFE USING FRICTION STIR WELDING”. THE IRAQI JOURNAL FOR MECHANICAL AND MATERIALS ENGINEERING, vol. 18, no. 2, Aug. 2018, pp. 277-95, https://doi.org/10.32852/iqjfmme.Vol18.Iss2.93.