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

Figure 10

(a) SEM images representing a crack initiation site; (b) typical propagation SEM image showing fatigue striations; and (c) cross-sectional OM image of surfaces for Alloy 617 BM tested at 0.6% total strain range.

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