Hydrogen/plasticity interactions at an axial crack in pipeline steel

M. Dadfarnia, Petros Athanasios Sofronis, B. P. Somerday, I. M. Robertson

研究成果: 著書/レポートタイプへの貢献会議での発言

抄録

The technology of large scale hydrogen transmission from central production facilities to refueling stations and stationary power sites is at present undeveloped. Among the problems which confront the implementation of this technology is the deleterious effect of hydrogen on structural material properties, in particular at gas pressure of 15 MPa which is the desirable transmission pressure suggested by economic studies for efficient transport. To investigate the hydrogen embrittlement of pipelines, a hydrogen transport methodology for the calculation of hydrogen accumulation ahead of a crack tip in a pipeline steel is outlined. This work addresses the interaction of hydrogen with an axial crack on the inside surface of the pipe. The approach accounts for stress-driven transient diffusion of hydrogen and trapping at microstructural defects whose density evolves dynamically with deformation. The results address the effect of hydrostatic constraint, stress, and plastic strain on the time it takes for the steady state hydrogen profiles to be established.

元の言語英語
ホスト出版物のタイトルFatigue and Fracture Mechanics: 36th Volume
出版者American Society for Testing and Materials
ページ474-495
ページ数22
1508 STP
ISBN(印刷物)9780803134164
出版物ステータス出版済み - 2009
外部発表Yes
イベント36th ASTM National Symposium on Fatigue and Fracture Mechanics - Tampa, FL, 米国
継続期間: 11 14 200711 16 2007

その他

その他36th ASTM National Symposium on Fatigue and Fracture Mechanics
米国
Tampa, FL
期間11/14/0711/16/07

Fingerprint

Steel
Plasticity
Hydrogen
Pipelines
Cracks
Hydrogen embrittlement
Defect density
Crack tips
Plastic deformation
Materials properties
Gases
Pipe
Economics

All Science Journal Classification (ASJC) codes

  • Materials Science(all)

これを引用

Dadfarnia, M., Sofronis, P. A., Somerday, B. P., & Robertson, I. M. (2009). Hydrogen/plasticity interactions at an axial crack in pipeline steel. : Fatigue and Fracture Mechanics: 36th Volume (巻 1508 STP, pp. 474-495). American Society for Testing and Materials.

Hydrogen/plasticity interactions at an axial crack in pipeline steel. / Dadfarnia, M.; Sofronis, Petros Athanasios; Somerday, B. P.; Robertson, I. M.

Fatigue and Fracture Mechanics: 36th Volume. 巻 1508 STP American Society for Testing and Materials, 2009. p. 474-495.

研究成果: 著書/レポートタイプへの貢献会議での発言

Dadfarnia, M, Sofronis, PA, Somerday, BP & Robertson, IM 2009, Hydrogen/plasticity interactions at an axial crack in pipeline steel. : Fatigue and Fracture Mechanics: 36th Volume. 巻. 1508 STP, American Society for Testing and Materials, pp. 474-495, 36th ASTM National Symposium on Fatigue and Fracture Mechanics, Tampa, FL, 米国, 11/14/07.
Dadfarnia M, Sofronis PA, Somerday BP, Robertson IM. Hydrogen/plasticity interactions at an axial crack in pipeline steel. : Fatigue and Fracture Mechanics: 36th Volume. 巻 1508 STP. American Society for Testing and Materials. 2009. p. 474-495
Dadfarnia, M. ; Sofronis, Petros Athanasios ; Somerday, B. P. ; Robertson, I. M. / Hydrogen/plasticity interactions at an axial crack in pipeline steel. Fatigue and Fracture Mechanics: 36th Volume. 巻 1508 STP American Society for Testing and Materials, 2009. pp. 474-495
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