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Corrosion Fatigue Cracking and Failure Risk Assessment of Pipelines

  • Ihor Dmytrakh
Part of the NATO Science for Peace and Security Series book series (NAPSC)

Problem of corrosion and corrosion fatigue damaging of feeding pipelines of heat-and-power generating units under long-term operating conditions is considered. The two main factors were taken into account: degradation of metals properties and purity of operating aqueous environment that causes by ecological pollution of natural water scoop. Corrosion fracture mechanics approach for assessment of workability and fracture risk of pipelines with cracklike defects is proposed, which is based on conception of threshold and critical cracks depth and also corrosion fatigue crack growth parameters.

Keywords

power-generating unit feeding pipelines exploited metal operating environments corrosion damaging defects corrosion fatigue crack crack growth rate threshold and critical crack depth diagram of fracture risk assessment 

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References

  1. 1.
    I. M. Dmytrakh, A. B. Vainman, M. H. Stashchuk and L. Toth, Reliability and durability of structural elements for heat-and-power engineering equipment. Reference manual/Eds. I. M. Dmytrakh (Publishing House of National Academy of Sciences of Ukraine “Academperiodyka”, Kiev, 2005) (in Ukrainian).Google Scholar
  2. 2.
    I. M. Dmytrakh and V. V. Panasyuk, Problems of lifetime assessment of water-steam circuit elements of power units, Bay Zoltan Institute for Logistics and Production Systems Miskolc, Hungary (11-12 April 2006); http://part.bzlogi.hu.
  3. 3.
    I. M. Dmytrakh and V. V. Panasyuk, in: Mechanical Fatigue of Metals, Edited by V. T. Troshchenko (Ternopil State Technical University, Ukraine, 2006), pp. 23-28.Google Scholar
  4. 4.
    I. M. Dmytrakh and V.V. Panasyuk, An influence of the corrosive environments on local fracture of the metals near the stress concentrators (National Academy of Sciences of Ukraine Karpenko Physico-Mechanical Institute, Lviv, 1999) (in Ukrainian).Google Scholar
  5. 5.
    I. M. Dmytrakh, R. Akid, and K. J. Miller, Electrochemistry of deformed smooth surfaces and short corrosion fatigue crack growth behaviour. British Corrosion Journal, 32(2), pp. 138-144 (1997).Google Scholar
  6. 6.
    R. Akid, I. M. Dmytrakh, and J. Gonzalez-Sanchez, Fatigue damage accumulation: the role of corrosion on the early stages of crack growth. Corrosion Engineering, Science and Technology, 41(4), pp. 328-335 (2006).CrossRefGoogle Scholar
  7. 7.
    I. M. Dmytrakh, A. B. Vainman, and R. I. Vovk, in: Fracture from Defects, Edited by M.W. Brown, E.R. de los Rios, and K.J. Miller (EMAS Publishing, UK, 1998), pp. 1145-1150.Google Scholar
  8. 8.
    I. M. Dmytrakh, in: Notch Effects in Fatigue and Fracture - NATO Science Series: II. Mathematics, Physics and Chemistry, Edited by G. Pluvinage and M. Gjonaj (Kluwer , Dordrecht/Boston/London, 2001), pp. 331-346.Google Scholar
  9. 9.
    I. Dmytrakh, A. Syrotyuk, and R. Leshchak, Assessment of surface corrosion fatigue damaging of pipeline steels. Physicochemical Mechanics of Materials, Special Issue No. 4, pp. 67-72 (2004) (in Ukrainian).Google Scholar
  10. 10.
    I. M. Dmytrakh, A. M. Syrotyuk, and R. S. Hrabovskyi, On admissible depth assessment of crack-like defects in pipelines of power-generating units. Physicochemical Mechanics of Materials, 37(5), pp. 69-74 (2001) (in Ukrainian).Google Scholar
  11. 11.
    I. M. Dmytrakh and A. M. Syrotyuk, in: Fracture Mechanics of Materials and Structural Integrity, Edited by V. V. Panasyuk (Karpenko Physico-Mechanical Institute of the NASU, Lviv, 2004), pp. 465-470 (in Ukrainian).Google Scholar
  12. 12.
    I. M. Dmytrakh, A. M. Syrotyuk, B. P. Rusyn, and Yu. V. Lysak, in: Problems of Service Life and Safe Exploitation of Structures, Facilities and Machines, Edited by B. Ye. Paton (National Academy of Sciences of Ukraine, Kyiv, 2006), pp. 221-225 (in Ukrainian).Google Scholar

Copyright information

© Springer 2008

Authors and Affiliations

  • Ihor Dmytrakh
    • 1
  1. 1.Karpenko Physico-Mechanical Institute of National Academy of Sciences of UkraineLvivUkraine

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