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A review of crack growth models for near-neutral pH stress corrosion cracking on oil and gas pipelines
This paper presents a review of four existing growth models for near-neutral pH stress corrosion cracking (NNpHSCC) defects on buried oil and gas pipelines: Chen et al.’s model, two models developed at the Southwest Research Institute (SwRI) and Xing et al.’s model. All four models consider corrosio...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Springer International Publishing
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8591668/ https://www.ncbi.nlm.nih.gov/pubmed/34806026 http://dx.doi.org/10.1186/s43065-021-00042-1 |
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author | Sun, Haotian Zhou, Wenxing Kang, Jidong |
author_facet | Sun, Haotian Zhou, Wenxing Kang, Jidong |
author_sort | Sun, Haotian |
collection | PubMed |
description | This paper presents a review of four existing growth models for near-neutral pH stress corrosion cracking (NNpHSCC) defects on buried oil and gas pipelines: Chen et al.’s model, two models developed at the Southwest Research Institute (SwRI) and Xing et al.’s model. All four models consider corrosion fatigue enhanced by hydrogen embrittlement as the main growth mechanism for NNpHSCC. The predictive accuracy of these growth models is investigated based on 39 crack growth rates obtained from full-scale tests conducted at the CanmetMATERIALS of Natural Resources Canada of pipe specimens that are in contact with NNpH soils and subjected to cyclic internal pressures. The comparison of the observed and predicted crack growth rates indicates that the hydrogen-enhanced decohesion (HEDE) component of Xing et al.’s model leads to on average reasonably accurate predictions with the corresponding mean and coefficient of variation (COV) of the observed-to-predicted ratios being 1.06 and 61.2%, respectively. The predictive accuracy of the other three models are markedly poorer. The analysis results suggest that further research is needed to improve existing growth models or develop new growth models to facilitate the pipeline integrity management practice with respect to NNpHSCC. |
format | Online Article Text |
id | pubmed-8591668 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | Springer International Publishing |
record_format | MEDLINE/PubMed |
spelling | pubmed-85916682021-11-19 A review of crack growth models for near-neutral pH stress corrosion cracking on oil and gas pipelines Sun, Haotian Zhou, Wenxing Kang, Jidong J Infrastruct Preserv Resil Research This paper presents a review of four existing growth models for near-neutral pH stress corrosion cracking (NNpHSCC) defects on buried oil and gas pipelines: Chen et al.’s model, two models developed at the Southwest Research Institute (SwRI) and Xing et al.’s model. All four models consider corrosion fatigue enhanced by hydrogen embrittlement as the main growth mechanism for NNpHSCC. The predictive accuracy of these growth models is investigated based on 39 crack growth rates obtained from full-scale tests conducted at the CanmetMATERIALS of Natural Resources Canada of pipe specimens that are in contact with NNpH soils and subjected to cyclic internal pressures. The comparison of the observed and predicted crack growth rates indicates that the hydrogen-enhanced decohesion (HEDE) component of Xing et al.’s model leads to on average reasonably accurate predictions with the corresponding mean and coefficient of variation (COV) of the observed-to-predicted ratios being 1.06 and 61.2%, respectively. The predictive accuracy of the other three models are markedly poorer. The analysis results suggest that further research is needed to improve existing growth models or develop new growth models to facilitate the pipeline integrity management practice with respect to NNpHSCC. Springer International Publishing 2021-10-24 2021 /pmc/articles/PMC8591668/ /pubmed/34806026 http://dx.doi.org/10.1186/s43065-021-00042-1 Text en © The Author(s) 2021 https://creativecommons.org/licenses/by/4.0/Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . |
spellingShingle | Research Sun, Haotian Zhou, Wenxing Kang, Jidong A review of crack growth models for near-neutral pH stress corrosion cracking on oil and gas pipelines |
title | A review of crack growth models for near-neutral pH stress corrosion cracking on oil and gas pipelines |
title_full | A review of crack growth models for near-neutral pH stress corrosion cracking on oil and gas pipelines |
title_fullStr | A review of crack growth models for near-neutral pH stress corrosion cracking on oil and gas pipelines |
title_full_unstemmed | A review of crack growth models for near-neutral pH stress corrosion cracking on oil and gas pipelines |
title_short | A review of crack growth models for near-neutral pH stress corrosion cracking on oil and gas pipelines |
title_sort | review of crack growth models for near-neutral ph stress corrosion cracking on oil and gas pipelines |
topic | Research |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8591668/ https://www.ncbi.nlm.nih.gov/pubmed/34806026 http://dx.doi.org/10.1186/s43065-021-00042-1 |
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