Abstract
The effect of the long-term operation on changes in the parameters of fracture toughness and a tendency for a delayed fracture of the steel of main gas pipelines is investigated. Based on the method of the full strain diagrams the general regularities of operational degradation influence onto the static fracture toughness and microscale failure mechanisms of 17MnSi steel after long term operation have been established. Generalization of results on the influence of absorbed hydrogen onto the pipeline steel structure and fracture pattern made possible to systemize the data on dispersed damage accumulation. The schematization of fracture mechanisms of 17MnSi steel is offered. The proposed approaches to the study of static fracture toughness of the steel of the main gas pipelines can be used in the evaluation of their technical conditions and planning of their overhaul.
| Original language | English |
|---|---|
| Pages (from-to) | 182-186 |
| Number of pages | 5 |
| Journal | Journal of Natural Gas Science and Engineering |
| Volume | 38 |
| DOIs | |
| Publication status | Published - 1 Feb 2017 |
Fingerprint
Keywords
- Damage
- Deformation
- In-service degradation
- Main gas pipeline
ASJC Scopus subject areas
- Energy Engineering and Power Technology
Cite this
Effect of long-term operation on steels of main gas pipeline. Reduction of static fracture toughness. / Maruschak, P. O.; Panin, S. V.; Chausov, M. G.; Bishchak, R. T.; Polyvana, U. V.
In: Journal of Natural Gas Science and Engineering, Vol. 38, 01.02.2017, p. 182-186.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Effect of long-term operation on steels of main gas pipeline. Reduction of static fracture toughness
AU - Maruschak, P. O.
AU - Panin, S. V.
AU - Chausov, M. G.
AU - Bishchak, R. T.
AU - Polyvana, U. V.
PY - 2017/2/1
Y1 - 2017/2/1
N2 - The effect of the long-term operation on changes in the parameters of fracture toughness and a tendency for a delayed fracture of the steel of main gas pipelines is investigated. Based on the method of the full strain diagrams the general regularities of operational degradation influence onto the static fracture toughness and microscale failure mechanisms of 17MnSi steel after long term operation have been established. Generalization of results on the influence of absorbed hydrogen onto the pipeline steel structure and fracture pattern made possible to systemize the data on dispersed damage accumulation. The schematization of fracture mechanisms of 17MnSi steel is offered. The proposed approaches to the study of static fracture toughness of the steel of the main gas pipelines can be used in the evaluation of their technical conditions and planning of their overhaul.
AB - The effect of the long-term operation on changes in the parameters of fracture toughness and a tendency for a delayed fracture of the steel of main gas pipelines is investigated. Based on the method of the full strain diagrams the general regularities of operational degradation influence onto the static fracture toughness and microscale failure mechanisms of 17MnSi steel after long term operation have been established. Generalization of results on the influence of absorbed hydrogen onto the pipeline steel structure and fracture pattern made possible to systemize the data on dispersed damage accumulation. The schematization of fracture mechanisms of 17MnSi steel is offered. The proposed approaches to the study of static fracture toughness of the steel of the main gas pipelines can be used in the evaluation of their technical conditions and planning of their overhaul.
KW - Damage
KW - Deformation
KW - In-service degradation
KW - Main gas pipeline
UR - http://www.scopus.com/inward/record.url?scp=85007569897&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85007569897&partnerID=8YFLogxK
U2 - 10.1016/j.jngse.2016.12.015
DO - 10.1016/j.jngse.2016.12.015
M3 - Article
VL - 38
SP - 182
EP - 186
JO - Journal of Natural Gas Science and Engineering
JF - Journal of Natural Gas Science and Engineering
SN - 1875-5100
ER -