PSI - Issue 20

Petukhova E. S. et al. / Procedia Structural Integrity 20 (2019) 75–80 Petukhova E. S. and Fedorov A. L./ Structural Integrity Procedia 00 (2019) 000 0 0

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Fig. 3. Elongation at rupture: (a) is control samples; (b) is testing samples taken from the (open-air testing area).

Fig. 4. Electronic micrographs after 18 months of exposure: a-d are the control samples; a ’ -d ’ are the samples taken from the open-air testing area.