Cyclic Stress Response and Fracture Behaviors of Alloy 617 Base Metal and Weld Joints under LCF Loading

Figure 12

SEM images of the fractograph representing a crack propagation for low and high magnifications for ((a), (b)) Alloy 617 BM and ((c), (d)) Alloy 617 WJ, tested at 1.5% total strain range, respectively.

(a)

(b)

(c)

(d)