Degradation of Properties of Long Term Exploited Main Oil and Gas Pipelines Steels and Role of Environment in This Process

  • H. M. Nykyforchyn
  • E. Lunarska
  • P. Zonta
Conference paper
Part of the NATO Science for Peace and Security Series C: Environmental Security book series (NAPSC, volume 1)


Comparison of mechanical (characteristics of strength, reduction of area and elongation, impact strength, hardness, fracture toughness), corrosion (corrosion rate and electrochemical parameters), corrosion-mechanical (stress corrosion cracking and hydrogen embrittlement) properties and parameters of hydrogen behaviour in the oil and gas pipelines steels in the as-received state and after 28–40 years of service are presented in the paper. Transported hydrocarbons serve as a hydrogen source and the hydrogen accumulates in the pipe metal during its use. This cause’s in-bulk material diffused damage due to the presence of hydrogen traps created during service. The analysis of a change of the mentioned characteristics together with the results of hydrogen permeation and vacuum hydrogen extraction measurements indicate considerable “in-bulk” material degradation of main pipeline steels after long term service and the essential role of hydrogen in these processes. Therefore the monitoring of surface defects induced by corrosion and mechanical damage is insufficient for safe service if one does not take into account possible degradation of in-bulk material properties. It is possible to monitor in-bulk material property changes by measurements of electrochemical characteristics and it opens up possibilities for an application of electrochemical methods for diagnostics of in-service degradation.


Stress Corrosion Crack Cathodic Polarization Pipeline Steel 17G1S Steel Hydrogen Trapping 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


  1. 1.
    Z.V. Slobodyan, H.M. Nykyforchyn, O.I. Petrushchak, Corrosion resistance of pipe steel in oil-water media. Mater. Sci. N3, 424–429 (2002)CrossRefGoogle Scholar
  2. 2.
    H.M. Nykyforchyn, K.-J. Kurzydlowski, E. Lunarska, Hydrogen degradation of steels in long term service conditions, in Environment-Induced Cracking of Materials, ed. by S.A. Shipilov, R.H. Jones, J.-M. Olive, R.B. Rebak. Prediction, Industrial Developments and Evaluations, vol. 2 (Elsevier, Amsterdam, 2008), pp. 349–361CrossRefGoogle Scholar
  3. 3.
    A.Y. Krasowsky, A.A. Dolgiy, V.M. Torop, Charpy testing to estimate pipeline steel degradation after 30 years of operation, in Proceedings of Charpy Centary Conference, vol. 1, Poitiers, 2001, pp. 489–495Google Scholar
  4. 4.
    A. Zagórski, H. Matysiak, O. Tsyrulnyk, O. Zvirko, H. Nykyforchyn, K. Kurzydlowski, Corrosion and stress corrosion cracking of exploited storage tank steel. Mater. Sci. N3, 113–117 (2004)Google Scholar
  5. 5.
    O.T. Tsyrulnyk, H.M. Nykyforchyn, YuD Petryna, M.I. Hredil, I.M. Dzioba, Hydrogen degradation of steels in gas mains after long period of operation. Mater. Sci. N5, 708–717 (2007)CrossRefGoogle Scholar
  6. 6.
    H. Nykyforchyn, E. Lunarska, O. Tsyrulnyk, K. Nikiforov, G. Gabetta, Effect of the long-term service of the gas pipeline on the properties of the ferrite–pearlite steel. Mater. Corros. N9, 716–725 (2009)CrossRefGoogle Scholar
  7. 7.
    H. Nykyforchyn, E. Lunarska, O.T. Tsyrulnyk, K. Nikiforov, M.E. Gennaro, G. Gabetta, Environmentally assisted “in-bulk” steel degradation of long term service gas trunkline. Eng. Fail. Anal. 17, 624–632 (2010)CrossRefGoogle Scholar
  8. 8.
    G. Gabetta, H.M. Nykyforchyn, E. Lunarska, P.P. Zonta, O.T. Tsyrulnyk, K. Nikiforov, M.I. Hredil, DYu Petryna, T. Vuherer, In-service degradation of gas trunk pipeline X52 steel. Mater. Sci. N 1, 104–119 (2008)CrossRefGoogle Scholar
  9. 9.
    G. Gabetta, M. Margarone, Corrosion and flow models predictions compared using case histories, in NACE Corrosion Conference Expo Paper 07522, Nashville, Apr 2007, p. 13Google Scholar
  10. 10.
    V.M.A. Devanathan, Z. Stachurski, The mechanism of hydrogen evolution on iron in acid solutions by determination of permeation rates. J. Electrochem. Soc. 11, 619–623 (1964)CrossRefGoogle Scholar
  11. 11.
    E. Łunarska, Application of hydrogen permeation technique for estimation of gradual hydrogen induced degradation of steel, in Proceedings of International Conference on Environmental Degradation of Engineering Materials, ed. by A. Zielińsi, D. Desjardins, vol. 1 (Gdańsk-Jurata, Gdańskie Towarzystwo Naukowe, 1999), pp. 32–37Google Scholar
  12. 12.
    Nechaev YuS, Metallic materials for the hydrogen energy industry and main gas pipelines: complex physical problems of aging, embrittlement, and failure. Usp. Fiz. Nauk Russ. Acad. Sci N7, 681–697 (2008)Google Scholar
  13. 13.
    H.M. Nykyforchyn, O.T. Tsyrulnyk, In-service degradation diagnostics of low-alloyed steels and aluminium alloys properties by electrochemical methods. Ultrasound N1, 46–49 (2009)Google Scholar

Copyright information

© Springer Science+Business Media B.V. 2011

Authors and Affiliations

  1. 1.Karpenko Physico-Mechanical Institute of the NAS of UkraineLvivUkraine
  2. 2.Institute of Physical Chemistry of the Polish Academy of SciencesWarszawaPoland
  3. 3.Venezia Tecnologie S.p.A.Porto MargheraItaly

Personalised recommendations