Figure 9From: Fatigue Resistance and Failure Behavior of Penetration and Non-Penetration Laser Welded Lap JointsFracture morphology of 0.8 mm fatigue fracture plate in 1.5+0.8-P specimen failed at 1.68 × 106 cycle: a overall view of fracture surface near lap interface, b transgranular and intergranular fractures of weld grains in crack initiation region at fusion boundary, c slow crack growth area, d rapid crack growth areaBack to article page