Influence of in-service degradation on strain localization in steel of main gas pipelines

Pavlo Maruschak, Roman Bishchak, Sergey Panin, Andriy Pylypenko, Abdellah Menou, Iryna Danyliuk

Division for Materials Science

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

General regularities in the failure kinetics of steel of main gas pipelines (17GS) are established using the method of complete stress-strain curves, meanwhile in-service degradation of metals is taken into account. The influence of material degradation on material properties under static tensioning is considered using two independent approaches: The phenomenological model of damage accumulation in metals, and the fractographic analysis method. The accumulation of in-service damage is found to increase a degree of material opening and lead to partial "embrittlement" of the steel matrix due to the microdefects accumulation in the vicinity of metal cracking caused by hydrogenation.

Original language	English
Title of host publication	AIP Conference Proceedings
Publisher	American Institute of Physics Inc.
Pages	399-402
Number of pages	4
Volume	1623
ISBN (Print)	9780735412606
DOIs	https://doi.org/10.1063/1.4898966
Publication status	Published - 2014
Event	International Conference on Physical Mesomechanics of Multilevel Systems 2014 - Tomsk, Russian Federation Duration: 3 Sep 2014 → 5 Sep 2014

Other

Other	International Conference on Physical Mesomechanics of Multilevel Systems 2014
Country	Russian Federation
City	Tomsk
Period	3.9.14 → 5.9.14

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Keywords

Deformation
Degradation
Fracture
Main gas pipeline
Strength

ASJC Scopus subject areas

Physics and Astronomy(all)

Cite this

Maruschak, P., Bishchak, R., Panin, S., Pylypenko, A., Menou, A., & Danyliuk, I. (2014). Influence of in-service degradation on strain localization in steel of main gas pipelines. In AIP Conference Proceedings (Vol. 1623, pp. 399-402). American Institute of Physics Inc.. https://doi.org/10.1063/1.4898966

Influence of in-service degradation on strain localization in steel of main gas pipelines. / Maruschak, Pavlo; Bishchak, Roman; Panin, Sergey; Pylypenko, Andriy; Menou, Abdellah; Danyliuk, Iryna.

AIP Conference Proceedings. Vol. 1623 American Institute of Physics Inc., 2014. p. 399-402.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Maruschak, P, Bishchak, R, Panin, S, Pylypenko, A, Menou, A & Danyliuk, I 2014, Influence of in-service degradation on strain localization in steel of main gas pipelines. in AIP Conference Proceedings. vol. 1623, American Institute of Physics Inc., pp. 399-402, International Conference on Physical Mesomechanics of Multilevel Systems 2014, Tomsk, Russian Federation, 3.9.14. https://doi.org/10.1063/1.4898966

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Access to Document

10.1063/1.4898966