13th International Conference on Fracture June 16–21, 2013, Beijing, China -6- Crack propagation Crack propagation Crack propagation Crack propagation Crack propagation (a) (d) (c) (e) (b) Figure 6. Images of fatigue crack in Specimen A: (a) before, (b) after first, (c) after forth, (d) after sixth and (e) after twelfth application of electric current Figure 7. Magnified images of fatigue cracks in Fig. 5: (a) before and (b) after the twelfth application of electric current (a) (b) 3 3
RkJQdWJsaXNoZXIy MjM0NDE=