186
S. Sahu et al.
Fig. 5.15 Lap shear strength
variations
As discussed earlier, the demerits of fusion welding technique, i.e., larger heat input,
formation of brittle Fe x Al y IMCs and larger HAZ may lead to lower joint strength.
The lap shear samples failed between SZ and TMAZ. Figure 5.16 shows the SEM of
fractured surface. It was observed that the fractured surfaces comprised of small size
Fig. 5.16 Fracture surface morphology for AA6061-T6-AISI304 joints
S. Sahu et al.
Fig. 5.15 Lap shear strength
variations
As discussed earlier, the demerits of fusion welding technique, i.e., larger heat input,
formation of brittle Fe x Al y IMCs and larger HAZ may lead to lower joint strength.
The lap shear samples failed between SZ and TMAZ. Figure 5.16 shows the SEM of
fractured surface. It was observed that the fractured surfaces comprised of small size
Fig. 5.16 Fracture surface morphology for AA6061-T6-AISI304 joints