The choice of signs of corrosion cracking of the metal pipes as a condition of effective diagnostics of main gas pipelines
Violations of the efficiency of main gas pipelines due to stress corrosion of metal pipes account about one third of all failures of domestic gas pipelines in recent years. We have implemented new fault detection means, application of which makes possible an earlier detection of macroscopic defects of various kinds, in particular, defects such as stress corrosion cracks. The effectiveness of each stage of technical diagnostics is determined by the choice of properties or parameters of the technical system, which are used to describe its actual state. However, the conclusions of the research results of the metal structure are not still used as diagnostic features. This fact significantly reduces the value of the proposed models of stress corrosion.