D. V. Novgorodov, V. G. Rybalko, A. S. Shleenkov

THE STRESS STATE INSTABILITY FACTOR AND ITS EFFECT ON THE GROWTH OF STRESS CORROSION CRACKING DEFECTS

In this paper, the results of in-pipe inspection of an extended section of a gas pipeline are briefly analyzed. The comparison of the number and distribution of stress corrosion defects detected in repeated passes allows us to conclude that repair work (changing the stress state) affects the stimulation of the evolution of cracks.

Acknowledgments: This work was performed within the governmental assignment from FASO Russia on the subject of Diagnostics, No. AAAA-A18-118020690196-3

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