PSI - Issue 57

David Mellé et al. / Procedia Structural Integrity 57 (2024) 61–72

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David Melle´ / Structural Integrity Procedia 00 (2023) 000–000

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Fig. 2. Example of initiation from a surface valley.

Fig. 3. Example of initiation from a gas pore.

Fig. 4. Example of initiation from a lack-of-fusion.

values similar for both mechanisms, on net-shape surfaces). For the etched surfaces, the three mechanisms sizes can be ordered with gas pores being the lowest sizes, and lack-of-fusion the largest ones with the surface valleys between