Cargando…

The effect of thermodynamic changes in the cooling of saline soils on the corrosion system of carbon steels

In this experiment, Q235 and X80 carbon steels, which are widely used in oil and gas pipelines and ancillary facilities, were selected to study the changes in the corrosion behaviour and mechanism of carbon steels in the process of natural saline soil cooling to a freezing state through electrochemi...

Descripción completa

Detalles Bibliográficos
Autores principales: Qi, Gang, Dong, Yanli, Feng, Yongxiang, Wei, Jianjian, Han, Pengju, Bai, Xiaohong, He, Bin
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9549485/
https://www.ncbi.nlm.nih.gov/pubmed/36320490
http://dx.doi.org/10.1039/d2ra04889b
_version_ 1784805682919243776
author Qi, Gang
Dong, Yanli
Feng, Yongxiang
Wei, Jianjian
Han, Pengju
Bai, Xiaohong
He, Bin
author_facet Qi, Gang
Dong, Yanli
Feng, Yongxiang
Wei, Jianjian
Han, Pengju
Bai, Xiaohong
He, Bin
author_sort Qi, Gang
collection PubMed
description In this experiment, Q235 and X80 carbon steels, which are widely used in oil and gas pipelines and ancillary facilities, were selected to study the changes in the corrosion behaviour and mechanism of carbon steels in the process of natural saline soil cooling to a freezing state through electrochemical testing. The equivalent circuit model of carbon steel before and after the freezing phase transformation in the soil was determined. Based on the corrosion kinetic parameters and soil thermodynamic changes, the influencing factors of steel corrosion during the cooling process were systematically analysed. It was found that temperature mainly affected carbon steel corrosion by changing the properties of the solution. The main factors affecting the corrosion behaviour of the carbon steel were the thermal motion of molecules, ions, and electrons in solution, oxygen dissolution and diffusion, ion adsorption, diffusion mass transfer, and unfrozen water content change during the cooling process.
format Online
Article
Text
id pubmed-9549485
institution National Center for Biotechnology Information
language English
publishDate 2022
publisher The Royal Society of Chemistry
record_format MEDLINE/PubMed
spelling pubmed-95494852022-10-31 The effect of thermodynamic changes in the cooling of saline soils on the corrosion system of carbon steels Qi, Gang Dong, Yanli Feng, Yongxiang Wei, Jianjian Han, Pengju Bai, Xiaohong He, Bin RSC Adv Chemistry In this experiment, Q235 and X80 carbon steels, which are widely used in oil and gas pipelines and ancillary facilities, were selected to study the changes in the corrosion behaviour and mechanism of carbon steels in the process of natural saline soil cooling to a freezing state through electrochemical testing. The equivalent circuit model of carbon steel before and after the freezing phase transformation in the soil was determined. Based on the corrosion kinetic parameters and soil thermodynamic changes, the influencing factors of steel corrosion during the cooling process were systematically analysed. It was found that temperature mainly affected carbon steel corrosion by changing the properties of the solution. The main factors affecting the corrosion behaviour of the carbon steel were the thermal motion of molecules, ions, and electrons in solution, oxygen dissolution and diffusion, ion adsorption, diffusion mass transfer, and unfrozen water content change during the cooling process. The Royal Society of Chemistry 2022-10-10 /pmc/articles/PMC9549485/ /pubmed/36320490 http://dx.doi.org/10.1039/d2ra04889b Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/
spellingShingle Chemistry
Qi, Gang
Dong, Yanli
Feng, Yongxiang
Wei, Jianjian
Han, Pengju
Bai, Xiaohong
He, Bin
The effect of thermodynamic changes in the cooling of saline soils on the corrosion system of carbon steels
title The effect of thermodynamic changes in the cooling of saline soils on the corrosion system of carbon steels
title_full The effect of thermodynamic changes in the cooling of saline soils on the corrosion system of carbon steels
title_fullStr The effect of thermodynamic changes in the cooling of saline soils on the corrosion system of carbon steels
title_full_unstemmed The effect of thermodynamic changes in the cooling of saline soils on the corrosion system of carbon steels
title_short The effect of thermodynamic changes in the cooling of saline soils on the corrosion system of carbon steels
title_sort effect of thermodynamic changes in the cooling of saline soils on the corrosion system of carbon steels
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9549485/
https://www.ncbi.nlm.nih.gov/pubmed/36320490
http://dx.doi.org/10.1039/d2ra04889b
work_keys_str_mv AT qigang theeffectofthermodynamicchangesinthecoolingofsalinesoilsonthecorrosionsystemofcarbonsteels
AT dongyanli theeffectofthermodynamicchangesinthecoolingofsalinesoilsonthecorrosionsystemofcarbonsteels
AT fengyongxiang theeffectofthermodynamicchangesinthecoolingofsalinesoilsonthecorrosionsystemofcarbonsteels
AT weijianjian theeffectofthermodynamicchangesinthecoolingofsalinesoilsonthecorrosionsystemofcarbonsteels
AT hanpengju theeffectofthermodynamicchangesinthecoolingofsalinesoilsonthecorrosionsystemofcarbonsteels
AT baixiaohong theeffectofthermodynamicchangesinthecoolingofsalinesoilsonthecorrosionsystemofcarbonsteels
AT hebin theeffectofthermodynamicchangesinthecoolingofsalinesoilsonthecorrosionsystemofcarbonsteels
AT qigang effectofthermodynamicchangesinthecoolingofsalinesoilsonthecorrosionsystemofcarbonsteels
AT dongyanli effectofthermodynamicchangesinthecoolingofsalinesoilsonthecorrosionsystemofcarbonsteels
AT fengyongxiang effectofthermodynamicchangesinthecoolingofsalinesoilsonthecorrosionsystemofcarbonsteels
AT weijianjian effectofthermodynamicchangesinthecoolingofsalinesoilsonthecorrosionsystemofcarbonsteels
AT hanpengju effectofthermodynamicchangesinthecoolingofsalinesoilsonthecorrosionsystemofcarbonsteels
AT baixiaohong effectofthermodynamicchangesinthecoolingofsalinesoilsonthecorrosionsystemofcarbonsteels
AT hebin effectofthermodynamicchangesinthecoolingofsalinesoilsonthecorrosionsystemofcarbonsteels