13th International Conference on Fracture June 16–21, 2013, Beijing, China -7- 40 30 20 10 0 12 10 8 6 4 2 0 Point 1 Point 2 Point 3 Point 4 Point 5 8200 8000 7800 7600 7400 7200 7000 6800 6600 Intensity, y 900 850 800 750 700 650 600 550 Electron energy, E eV Ni Ni Ni Ni Fe Fe Fe Figure 8. Change of crack width at the measure point in Fig. 5 for every application of the electric current in Specimen A Width of crack, w μm The number of application of electric current, N Figure 9. Auger spectrum at the inside of the crack after the application of the electric current
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