PSI - Issue 28

V.V. Sudin et al. / Procedia Structural Integrity 28 (2020) 1637–1643 Sudin V.V./ Structural Integrity Procedia 00 (2019) 000–000

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Fig. 1. Microphotography of the fracture area between the notch and the cleavage facets. The growth area of an initial ductile crack is marked with a line. 3. Results The values of the specimen fracture energies during impact bending tests are shown in figure 2. These values have a significant scattering, the appearance of which is associated with the cleavage fracture areas of different size Cao et al. (2015). Measurement of the initial growth zones of the ductile crack under the notch and analysis of load-displacement curves showed that in the studied specimens there is a clear correlation between the displacement of the pendulum at

Fig. 2. Values of the fracture energy of specimens of welded joints and base metal depending on the temperature.