Mechanisms and evidence of chloride-accelerated pitting in gas pipeline steel
<p>Internal corrosion poses a significant challenge to the mechanical integrity and operational reliability of oil and gas transmission pipelines, often causing premature failures and environmental risks. This study offers a detailed investigation of localized pitting corrosion observed on a p...
محفوظ في:
| المؤلف الرئيسي: | |
|---|---|
| مؤلفون آخرون: | , , , , , |
| منشور في: |
2025
|
| الموضوعات: | |
| الوسوم: |
إضافة وسم
لا توجد وسوم, كن أول من يضع وسما على هذه التسجيلة!
|
| _version_ | 1864513525541502976 |
|---|---|
| author | Atef Zekri (14156904) |
| author2 | Qingyang Liu (1508776) Omar Al Hassan (22928665) Akshath Raghu Shetty (21811817) Ayman Samara (14151150) Brahim Aissa (10591619) Said Mansour (8697699) |
| author2_role | author author author author author author |
| author_facet | Atef Zekri (14156904) Qingyang Liu (1508776) Omar Al Hassan (22928665) Akshath Raghu Shetty (21811817) Ayman Samara (14151150) Brahim Aissa (10591619) Said Mansour (8697699) |
| author_role | author |
| dc.creator.none.fl_str_mv | Atef Zekri (14156904) Qingyang Liu (1508776) Omar Al Hassan (22928665) Akshath Raghu Shetty (21811817) Ayman Samara (14151150) Brahim Aissa (10591619) Said Mansour (8697699) |
| dc.date.none.fl_str_mv | 2025-07-31T15:00:00Z |
| dc.identifier.none.fl_str_mv | 10.1016/j.engfailanal.2025.109944 |
| dc.relation.none.fl_str_mv | https://figshare.com/articles/journal_contribution/Mechanisms_and_evidence_of_chloride-accelerated_pitting_in_gas_pipeline_steel/30971494 |
| dc.rights.none.fl_str_mv | CC BY 4.0 info:eu-repo/semantics/openAccess |
| dc.subject.none.fl_str_mv | Engineering Materials engineering Resources engineering and extractive metallurgy Pipeline Corrosion Pitting Corrosion Internal Corrosion Gas and Oil Pipelines Chlorine Microstructure |
| dc.title.none.fl_str_mv | Mechanisms and evidence of chloride-accelerated pitting in gas pipeline steel |
| dc.type.none.fl_str_mv | Text Journal contribution info:eu-repo/semantics/publishedVersion text contribution to journal |
| description | <p>Internal corrosion poses a significant challenge to the mechanical integrity and operational reliability of oil and gas transmission pipelines, often causing premature failures and environmental risks. This study offers a detailed investigation of localized pitting corrosion observed on a pipeline wheel segment after ten years of continuous service under field conditions. A range of materials characterisation techniques, including scanning electron microscopy (SEM), transmission electron microscopy (TEM), energy-dispersive X-ray spectroscopy (EDS), X-ray diffraction (XRD), and thermogravimetric analysis combined with mass spectrometry (TGA-MS), were utilised to examine the corrosion morphology, composition, and mechanisms. The results show that the main corrosion products are rich in chlorine and sulphur compounds, indicating the combined influence of these aggressive ions in the corrosion process. Chlorine appears to be the key factor initiating pit formation, with a clear radial propagation pattern that suggests autocatalytic growth of pits. The detection of chlorine-induced compounds such as akaganeite (β-FeOOH), supports the theory of chloride-induced passivity failure and localised acidification. These findings confirm that pitting corrosion, mainly driven by chlorine attack, is the principal degradation mode in the pipeline section studied.</p><h2>Other Information</h2> <p> Published in: Engineering Failure Analysis<br> License: <a href="http://creativecommons.org/licenses/by/4.0/" target="_blank">http://creativecommons.org/licenses/by/4.0/</a><br>See article on publisher's website: <a href="https://dx.doi.org/10.1016/j.engfailanal.2025.109944" target="_blank">https://dx.doi.org/10.1016/j.engfailanal.2025.109944</a></p> |
| eu_rights_str_mv | openAccess |
| id | Manara2_ac2dd919f4485664f605c1aefe1a1037 |
| identifier_str_mv | 10.1016/j.engfailanal.2025.109944 |
| network_acronym_str | Manara2 |
| network_name_str | Manara2 |
| oai_identifier_str | oai:figshare.com:article/30971494 |
| publishDate | 2025 |
| repository.mail.fl_str_mv | |
| repository.name.fl_str_mv | |
| repository_id_str | |
| rights_invalid_str_mv | CC BY 4.0 |
| spelling | Mechanisms and evidence of chloride-accelerated pitting in gas pipeline steelAtef Zekri (14156904)Qingyang Liu (1508776)Omar Al Hassan (22928665)Akshath Raghu Shetty (21811817)Ayman Samara (14151150)Brahim Aissa (10591619)Said Mansour (8697699)EngineeringMaterials engineeringResources engineering and extractive metallurgyPipeline CorrosionPitting CorrosionInternal CorrosionGas and Oil PipelinesChlorineMicrostructure<p>Internal corrosion poses a significant challenge to the mechanical integrity and operational reliability of oil and gas transmission pipelines, often causing premature failures and environmental risks. This study offers a detailed investigation of localized pitting corrosion observed on a pipeline wheel segment after ten years of continuous service under field conditions. A range of materials characterisation techniques, including scanning electron microscopy (SEM), transmission electron microscopy (TEM), energy-dispersive X-ray spectroscopy (EDS), X-ray diffraction (XRD), and thermogravimetric analysis combined with mass spectrometry (TGA-MS), were utilised to examine the corrosion morphology, composition, and mechanisms. The results show that the main corrosion products are rich in chlorine and sulphur compounds, indicating the combined influence of these aggressive ions in the corrosion process. Chlorine appears to be the key factor initiating pit formation, with a clear radial propagation pattern that suggests autocatalytic growth of pits. The detection of chlorine-induced compounds such as akaganeite (β-FeOOH), supports the theory of chloride-induced passivity failure and localised acidification. These findings confirm that pitting corrosion, mainly driven by chlorine attack, is the principal degradation mode in the pipeline section studied.</p><h2>Other Information</h2> <p> Published in: Engineering Failure Analysis<br> License: <a href="http://creativecommons.org/licenses/by/4.0/" target="_blank">http://creativecommons.org/licenses/by/4.0/</a><br>See article on publisher's website: <a href="https://dx.doi.org/10.1016/j.engfailanal.2025.109944" target="_blank">https://dx.doi.org/10.1016/j.engfailanal.2025.109944</a></p>2025-07-31T15:00:00ZTextJournal contributioninfo:eu-repo/semantics/publishedVersiontextcontribution to journal10.1016/j.engfailanal.2025.109944https://figshare.com/articles/journal_contribution/Mechanisms_and_evidence_of_chloride-accelerated_pitting_in_gas_pipeline_steel/30971494CC BY 4.0info:eu-repo/semantics/openAccessoai:figshare.com:article/309714942025-07-31T15:00:00Z |
| spellingShingle | Mechanisms and evidence of chloride-accelerated pitting in gas pipeline steel Atef Zekri (14156904) Engineering Materials engineering Resources engineering and extractive metallurgy Pipeline Corrosion Pitting Corrosion Internal Corrosion Gas and Oil Pipelines Chlorine Microstructure |
| status_str | publishedVersion |
| title | Mechanisms and evidence of chloride-accelerated pitting in gas pipeline steel |
| title_full | Mechanisms and evidence of chloride-accelerated pitting in gas pipeline steel |
| title_fullStr | Mechanisms and evidence of chloride-accelerated pitting in gas pipeline steel |
| title_full_unstemmed | Mechanisms and evidence of chloride-accelerated pitting in gas pipeline steel |
| title_short | Mechanisms and evidence of chloride-accelerated pitting in gas pipeline steel |
| title_sort | Mechanisms and evidence of chloride-accelerated pitting in gas pipeline steel |
| topic | Engineering Materials engineering Resources engineering and extractive metallurgy Pipeline Corrosion Pitting Corrosion Internal Corrosion Gas and Oil Pipelines Chlorine Microstructure |