Tareq Abdullah I, Khalil Ibrahim Z. EFFECT OF OPERATION CONDITIONS ON MECHANICAL PROPERTIES OF AA7020-T53 ALLOY WELDED BY FRICTION STIR WELDING. J. eng. sustain. dev. 2019;23(2):42-55. Accessed June 4, 2026. https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/275