PSI - Issue 2_B

B. Dönges et al. / Procedia Structural Integrity 2 (2016) 3305–3312

3310

6

B. Dönges et al./ Structural Integrity Procedia 00 (2016) 000–000

Fig. 5: (a) Schematic representation of short fatigue crack propagation through a ferrite grain and (b) shear stress on the plane containing the crack along the (potential) further crack path.

Fig. 6: (a) Micro crack in run-out sample (N = 10 9 , Δσ/2 = 370MPa, R = -1) which was stopped by phase boundaries (circles show possible slip traces) and (b) geometrical relationship between activated slip planes of neighboring grains (perspectiv representation)