PSI - Issue 2_B

M. Meischel et al. / Procedia Structural Integrity 2 (2016) 1077–1084 Author name / Structural Integrity Procedia 00 (2016) 000–000

1080

4

dashed manner. In Fig. 3(b), the cumulative frequency of idealized and realized stress amplitudes is plotted. They are almost identical.

Fig. 3. (a) Histogram of an experiment with pre-given and realized stress amplitudes; (b) Cumulative frequency of stress amplitudes (shown in (a)).

2.3. Measurements in Corrosive Environment Part of the experiments was performed in a 3.5% NaCl solution. For this, a corrosion device, as shown in Fig. 4(a) was used (Schönbauer et al., 2014). Test chamber and solution reservoir are made of stainless 316L und 316Ti steel. The front plate of the test chamber is made from Polycarbonate in order to make a visual observation of the specimen possible. The facility contains sensors for measurement of temperature, electric conductivity and oxygen content as well as of the corrosion potential. The reservoir contains 30 l of the NaCl solution. For more details see (Schönbauer et al., 2014). In Fig. 4(b), the impact of the corrosive attack of the NaCl solution is visible. The right specimen was stored for 48 hours without applying a load in the 3.5% NaCl solution.

Fig. 4. (a) Corrosion facility (Schönbauer et al., 2014); (b) Surface of a polished reference specimen (left) and a specimen exposed without load application to 3.5.% NaCl solution during 48 hours (right).