Research Article

Effect of Welding Wires Containing ZrB2 Particles on Microstructure and Mechanical Properties of Spray-Formed 7055 Aluminum Alloy TIG Welded Joints

Figure 7

SEM surface morphology of ZrB2/7055 welded joints. (a) Pure 7055 welded joint. (b) 1.5 wt.% ZrB2/7055 welded joint. (c) and (d) 3.0 wt.% ZrB2/7055 welded joint.