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Information × Registration Number 0221U100304, 0119U101187 , R & D reports Title Development of the methodological basis for technical state assessment and secure lifetime justification of structural elements of the increased danger objects in hydrogen-contained environments popup.stage_title Head Dmytrakh Ihor M., Registration Date 04-01-2021 Organization Karpenko Physico-Mechanical Institute of NASU popup.description2  Methodological bases and new criteria for evaluation of the workability of low-alloyed steels in hydrogen-containing environments under static and cyclic loading are developed, which are based on the interplay of the following factors: hydrogen concentration, the microstructure of the material, its strength, plasticity and crack resistance. The developed criteria were tested in laboratory conditions based on tests of pipe elements using the developed method of diagnosing pipelines, which is grounded on the phenomenon of change electrode potential of metal depending on the degree of its hydrogenation. The performed works confirmed the applicability and efficiency of the developed methods for the ground sections of pipelines for transportation of hydrogen-containing environments. The advantage is that the proposed development allows making reasonable expert conclusions about the fracture risk and safe operation of the defective pipeline element directly at the diagnostic site. Product Description popup.authors Barna Roman A. Vovk Roman I Dmytrakh Ihor M. Leschak Rostyslav L. Syrotyuk Andriy M popup.nrat_date 2021-01-04 Close