TY - JOUR AU - zarei, omid AU - mosavizade, mostafa AU - zarghani, fateme AU - zarei, hamed TI - protrusion friction stir spot welding: the microstructure and mechanical properties of Al 6061 alloy JO - Journal of New Materials VL - 10 IS - 2 SP - 51 EP - 68 PY - 2019 DO - ER -