Reviews of topical problems

Metallic materials for the hydrogen energy industry and main gas pipelines: complex physical problems of aging, embrittlement, and failure

G.V. Kurdyumov Institite of Metal Science and Physics, State Research Centre of the Russian Federation, I.P. Bardin Central Research Institute of Ferrous Metallurgy, 2-ya Baumanskaya ul. 9/23, Moscow, 105005, Russian Federation

The possibilities of effective solutions of relevant technological problems are considered based on the analysis of fundamental physical aspects, elucidation of the micromechanisms and interrelations of aging and hydrogen embrittlement of materials in the hydrogen industry and gas-main industries. The adverse effects these mechanisms and processes have on the service properties and technological lifetime of materials are analyzed. The concomitant fundamental process of formation of carbohydride-like and other nanosegregation structures at dislocations (with the segregation capacity 1 to 1.5 orders of magnitude greater than in the widely used Cottrell ’atmosphere’ model) and grain boundaries is discussed, as is the way in which these structures affect technological processes (aging, hydrogen embrittlement, stress corrosion damage, and failure) and the physicomechanical properties of the metallic materials (including the technological lifetimes of pipeline steels).

Fulltext is available at IOP
PACS: 62.20.−x, 81.40.−z, 89.20.Bb (all)
DOI: 10.1070/PU2008v051n07ABEH006570
Citation: Nechaev Yu S "Metallic materials for the hydrogen energy industry and main gas pipelines: complex physical problems of aging, embrittlement, and failure" Phys. Usp. 51 681–697 (2008)
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Оригинал: Нечаев Ю С «Физические комплексные проблемы старения, охрупчивания и разрушения металлических материалов водородной энергетики и магистральных газопроводов» УФН 178 709–726 (2008); DOI: 10.3367/UFNr.0178.200807b.0709

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