ICF13B

Hydrogen embrittlement reduces fatigue life by increasing fatigue crack propagation and reducing number of cycles to initiation. Fatigue initiation can be described by the Notch Stress Intensity Factor which is sensitive to average hydrogen concentration. References [1]. Mulder G., Hetland J. and Lenaers G. Towards a sustainable hydrogen economy: Hydrogen pathways and infrastructure. International Journal of Hydrogen Energy, 32, Issues 10-11 (2007) 1324-1331 [2]. Wietschel M., Hasenauer U. and de Groot A. Development of European hydrogen infrastructure scenarios - CO2 reduction potential and infrastructure investment. Energy Policy, 34, Issue 11 (2006) 1284-1298 [3]. NaturalHy Project, http://www.naturalhy.net [4]. Hanneken J. W. Hydrogen in metals and other materials: a comprehensive reference to books. bibliographies. workshops and conferences. International Journal of Hydrogen Energy. 24. No 10. (1999) 1005-1026. [5]. Cheng Y.F. Fundamentals of hydrogen evolution reaction and its implications on near-neutral pH stress corrosion cracking of pipelines. Electrochimica Acta 52 (2007) 2661–2667 [6]. Dey S., Mandhyan A.K., Sondhi S.K., Chattoraj I. Hydrogen entry into pipeline steel under freely corroding conditions in two corroding media. Corrosion Science 48 (2006) 2676–2688 [7]. Shipilov S.A., May I.L. Structural integrity of aging buried pipelines having cathodic protection. Engineering Failure Analysis 13 (2006) 1159–1176 [8]. Adib-Ramezani H.. Jeong J.. Pluvinage G. Structural integrity evaluation of X52 gas pipes subjected to external corrosion defects using the SINTAP procedure. International Journal of Pressure Vessels and Piping 83 (2006) 420–432 [9]. Capelle J., Gilgert J., Dmytrakh I., Pluvinage G. Sensitivity of pipelines with steel API X52 to hydrogen embrittlement. International Journal of Hydrogen Energy 33 (2008) 7630-7641 [10]. Yan M., Weng Y. Study on hydrogen absorption of pipeline steel under cathodic charging. Corrosion Science 48 (2006) 432–444 [11]. M. Barsom and R. C. McNicol, Effect of stress concentration on fatigue-crack initiation in HY-130 steel. ASTM STP 559, 183-204 (1974). [12]. A. R. Jack and A. T. Price, The initiation of fatigue cracks from notches in mild steel plates. Int. J. Fracture Mech. 6 (4) (1970). [13]. W. G. Clark, Jr, Evolution of the crack initiation properties of type 403 stainless steel in air and steam environment. ASTM STP 559, 205-224 (1974). [14]. M. Truchon, Amorçage de fissures en fatigue à partir d'entaille, application aux joints soudés. Bulletin Technique duBureau Veritas 67 (5) (1985). [15]. Boukharouba,T. Tamine,L. Niu, C. Chehimi and G. Pluvinage The use of notch stress intensity factor as a fatigue crack initiation parameter. Engineering Fracture Mechanics Vol. 52, No. 3, pp. 503-512, (1995).

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