PSI - Issue 14

A. Poonguzhali et al. / Procedia Structural Integrity 14 (2019) 705–711 Poonguzhali et al. l / Structural Integrity Procedia 00 (2018) 000–000

710

Fig. 5. (a-c) SEM image of surface crack initiation as a

function of CW; (d) Transgranular mode of fracture surface at

(σ mean = 375 MPa)

Fig. 6. AFM image of slip band spacing of fatigue tested specimen at

(σ mean = 375 MPa) for (a) 0% CW; (b) 5% CW and (c) 20% CW .