Effect of Exfoliation Corrosion on the Mechanical Properties of Friction Stir Spot Welded 2024-T3 AA Joints

Figure 11

SEM of the fracture surface of the tensile shear specimens (a) fracture surface of the lower sheet of as-welded specimens; (b)-(c) magnified views of points A and B, respectively; (d) fracture surface of the lower sheet of corroded specimens for 50 h; (d)-(e) magnified views of points C and D, respectively.

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