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Metallurgist

, Volume 59, Issue 3–4, pp 324–329 | Cite as

Impact Strength of Main gas Pipeline Steel After Prolonged Operation

  • P. O. Maruschak
  • I. M. Danyliuk
  • T. Vuherer
  • R. T. Bishchak
Article
  • 47 Downloads

The main features of crack initiation in main gas pipeline steel after forty years of operation with impact loading are studied. The energy capacity of gas pipeline material breakdown is studied for different directions of specimen cutting. Each stage of the impact loading diagram is specified by self-organization of deformation levels, and the shape of the diagram makes it possible to describe the stages of breakdown.

Keywords

steel relief failure mechanism impact strength structure 

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Copyright information

© Springer Science+Business Media New York 2015

Authors and Affiliations

  • P. O. Maruschak
    • 1
  • I. M. Danyliuk
    • 1
  • T. Vuherer
    • 2
  • R. T. Bishchak
    • 3
  1. 1.Ternopol National Technical UniversityTernopolUkraine
  2. 2.Maribor UniversityMariborSlovenia
  3. 3.3Ivano-Frankovsk National Technical University of Oil and GasIvano-FrankovskUkraine

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