Fatigue mechanism (IMAGE)

City University of Hong Kong

Fatigue mechanism

Caption

Fatigue mechanism investigation on the specimen after 107 fatigue cycles at a maximum stress of 260 MPa (R = 0.1). (A) No obvious cracks were observed in the specimen after fatigue testing. (B – C) Locating and exposing a cross-section of P1 by μ-CT-guided laser polishing. (D – H) The submicron eutectic network around the pores remains basically intact, and dislocation movement is limited within the network structure.

Credit

Dan, C. et al, source: https://doi.org/10.1038/s41563-023-01651-9

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