Characterisation of soil/pipe interface at a pipeline failure after 36 years of service under impressed current cathodic protection

L. Quej-Aké; N. Nava; M. A. Espinosa-Medina; H. B. Liu; J. L. Alamilla; E. Sosa

doi:10.1179/1743278214Y.0000000226

Characterisation of soil/pipe interface at a pipeline failure after 36 years of service under impressed current cathodic protection

L. Quej-Aké, N. Nava, M. A. Espinosa-Medina, H. B. Liu, J. L. Alamilla, E. Sosa

Research output: Contribution to journal › Article › peer-review

20 Scopus citations

Abstract

Study on corrosion behaviour of buried pipeline in saline soil is presented, the pipeline is protected by coating and impressed current cathodic protection system. In this work, spectrometric and spectroscopic techniques were used to characterise the pipe/coating/soil interfaces. The results show the coating/pipe interface forms corrosion products including the following phases: magnetite, goethite, akaganeite and hematite. However, the main phases found at coating/soil interface are magnetite and ferric ion. The behavior is consistent with the corrosion of carbon steel in soil with oxygen and chloride ion. The reaction paths are proposed under the conditions of deteriorated coating, cathodic protection, saline soil and seasonal fluctuations.

Original language	English
Pages (from-to)	311-319
Number of pages	9
Journal	Corrosion Engineering Science and Technology
Volume	50
Issue number	4
DOIs	https://doi.org/10.1179/1743278214Y.0000000226
State	Published - May 2015
Externally published	Yes

Keywords

EIS
Pipeline
Soil corrosion

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10.1179/1743278214Y.0000000226

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title = "Characterisation of soil/pipe interface at a pipeline failure after 36 years of service under impressed current cathodic protection",

abstract = "Study on corrosion behaviour of buried pipeline in saline soil is presented, the pipeline is protected by coating and impressed current cathodic protection system. In this work, spectrometric and spectroscopic techniques were used to characterise the pipe/coating/soil interfaces. The results show the coating/pipe interface forms corrosion products including the following phases: magnetite, goethite, akaganeite and hematite. However, the main phases found at coating/soil interface are magnetite and ferric ion. The behavior is consistent with the corrosion of carbon steel in soil with oxygen and chloride ion. The reaction paths are proposed under the conditions of deteriorated coating, cathodic protection, saline soil and seasonal fluctuations.",

keywords = "EIS, Pipeline, Soil corrosion",

author = "L. Quej-Ak{\'e} and N. Nava and Espinosa-Medina, {M. A.} and Liu, {H. B.} and Alamilla, {J. L.} and E. Sosa",

note = "Publisher Copyright: {\textcopyright} 2015 Institute of Materials, Minerals and Mining.",

year = "2015",

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doi = "10.1179/1743278214Y.0000000226",

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T1 - Characterisation of soil/pipe interface at a pipeline failure after 36 years of service under impressed current cathodic protection

AU - Quej-Aké, L.

AU - Nava, N.

AU - Espinosa-Medina, M. A.

AU - Liu, H. B.

AU - Alamilla, J. L.

AU - Sosa, E.

PY - 2015/5

Y1 - 2015/5

N2 - Study on corrosion behaviour of buried pipeline in saline soil is presented, the pipeline is protected by coating and impressed current cathodic protection system. In this work, spectrometric and spectroscopic techniques were used to characterise the pipe/coating/soil interfaces. The results show the coating/pipe interface forms corrosion products including the following phases: magnetite, goethite, akaganeite and hematite. However, the main phases found at coating/soil interface are magnetite and ferric ion. The behavior is consistent with the corrosion of carbon steel in soil with oxygen and chloride ion. The reaction paths are proposed under the conditions of deteriorated coating, cathodic protection, saline soil and seasonal fluctuations.

AB - Study on corrosion behaviour of buried pipeline in saline soil is presented, the pipeline is protected by coating and impressed current cathodic protection system. In this work, spectrometric and spectroscopic techniques were used to characterise the pipe/coating/soil interfaces. The results show the coating/pipe interface forms corrosion products including the following phases: magnetite, goethite, akaganeite and hematite. However, the main phases found at coating/soil interface are magnetite and ferric ion. The behavior is consistent with the corrosion of carbon steel in soil with oxygen and chloride ion. The reaction paths are proposed under the conditions of deteriorated coating, cathodic protection, saline soil and seasonal fluctuations.

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KW - Soil corrosion

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DO - 10.1179/1743278214Y.0000000226

M3 - Artículo

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VL - 50

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JO - Corrosion Engineering Science and Technology

JF - Corrosion Engineering Science and Technology

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ER -

Characterisation of soil/pipe interface at a pipeline failure after 36 years of service under impressed current cathodic protection

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