The Corrosion Behavior of N80 Steel in Multiple Thermal Fluid Environment Containing O2 and CO2
The corrosion behavior of N80 steel in Multiple thermal fluid environment containing O2 and CO2 was analyzed by Scanning Electron Microscopy (SEM), Energy-dispersive Spectrometry (EDS) and X-ray Diffraction (XRD) techniques. The results showed that, the corrosion products formed on N80 steel showed...
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| Format: | Article |
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Frontiers Media S.A.
2021-10-01
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| Series: | Frontiers in Materials |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fmats.2021.721035/full |
| _version_ | 1818727777401044992 |
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| author | Xueqiang Lin Xiaokang Luo Wei Liu Yufan Chen Bo Pang Yi Guo Qingkun He |
| author_facet | Xueqiang Lin Xiaokang Luo Wei Liu Yufan Chen Bo Pang Yi Guo Qingkun He |
| author_sort | Xueqiang Lin |
| collection | DOAJ |
| description | The corrosion behavior of N80 steel in Multiple thermal fluid environment containing O2 and CO2 was analyzed by Scanning Electron Microscopy (SEM), Energy-dispersive Spectrometry (EDS) and X-ray Diffraction (XRD) techniques. The results showed that, the corrosion products formed on N80 steel showed double layer structure. The outer layer are loose and porous, providing little protection. The inner layer are mainly FeCO3 crystals, and a small amount of Fe2O3 and FeOOH composition. The formation of Fe oxide on the inner layer of the film destroyed the integrity of the inner layer, resulting in localized corrosion. During the development of pitting, Cl− is enriched only at the tip of the pitting hole, which is the main cause of pitting corrosion and eventually leads to the formation of dendritic localized corrosion. The difference between internal and external potentials, the O2 concentration and the decrease of pH in the pitting holes combined to increase the corrosion process. |
| first_indexed | 2024-12-17T22:19:29Z |
| format | Article |
| id | doaj.art-bdac048f338e4417858090d60f5a5854 |
| institution | Directory Open Access Journal |
| issn | 2296-8016 |
| language | English |
| last_indexed | 2024-12-17T22:19:29Z |
| publishDate | 2021-10-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Materials |
| spelling | doaj.art-bdac048f338e4417858090d60f5a58542022-12-21T21:30:30ZengFrontiers Media S.A.Frontiers in Materials2296-80162021-10-01810.3389/fmats.2021.721035721035The Corrosion Behavior of N80 Steel in Multiple Thermal Fluid Environment Containing O2 and CO2Xueqiang Lin0Xiaokang Luo1Wei Liu2Yufan Chen3Bo Pang4Yi Guo5Qingkun He6School of Materials Science and Engineering, China University of Petroleum (Huadong), Qingdao, ChinaLanzhou LS Petroleum Equipment Engineering Co.Ltd, Qingdao, ChinaInstitute for Advanced Materials and Technology, University of Science and Technology Beijing, Beijing, ChinaSchool of Materials Science and Engineering, China University of Petroleum (Huadong), Qingdao, ChinaSchool of Materials Science and Engineering, China University of Petroleum (Huadong), Qingdao, ChinaSchool of Materials Science and Engineering, China University of Petroleum (Huadong), Qingdao, ChinaExperiment Center of School of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao, ChinaThe corrosion behavior of N80 steel in Multiple thermal fluid environment containing O2 and CO2 was analyzed by Scanning Electron Microscopy (SEM), Energy-dispersive Spectrometry (EDS) and X-ray Diffraction (XRD) techniques. The results showed that, the corrosion products formed on N80 steel showed double layer structure. The outer layer are loose and porous, providing little protection. The inner layer are mainly FeCO3 crystals, and a small amount of Fe2O3 and FeOOH composition. The formation of Fe oxide on the inner layer of the film destroyed the integrity of the inner layer, resulting in localized corrosion. During the development of pitting, Cl− is enriched only at the tip of the pitting hole, which is the main cause of pitting corrosion and eventually leads to the formation of dendritic localized corrosion. The difference between internal and external potentials, the O2 concentration and the decrease of pH in the pitting holes combined to increase the corrosion process.https://www.frontiersin.org/articles/10.3389/fmats.2021.721035/fullN80 steelO2 corrosionCO2 corrosioncorrosion morphologycharacteristics of product film |
| spellingShingle | Xueqiang Lin Xiaokang Luo Wei Liu Yufan Chen Bo Pang Yi Guo Qingkun He The Corrosion Behavior of N80 Steel in Multiple Thermal Fluid Environment Containing O2 and CO2 Frontiers in Materials N80 steel O2 corrosion CO2 corrosion corrosion morphology characteristics of product film |
| title | The Corrosion Behavior of N80 Steel in Multiple Thermal Fluid Environment Containing O2 and CO2 |
| title_full | The Corrosion Behavior of N80 Steel in Multiple Thermal Fluid Environment Containing O2 and CO2 |
| title_fullStr | The Corrosion Behavior of N80 Steel in Multiple Thermal Fluid Environment Containing O2 and CO2 |
| title_full_unstemmed | The Corrosion Behavior of N80 Steel in Multiple Thermal Fluid Environment Containing O2 and CO2 |
| title_short | The Corrosion Behavior of N80 Steel in Multiple Thermal Fluid Environment Containing O2 and CO2 |
| title_sort | corrosion behavior of n80 steel in multiple thermal fluid environment containing o2 and co2 |
| topic | N80 steel O2 corrosion CO2 corrosion corrosion morphology characteristics of product film |
| url | https://www.frontiersin.org/articles/10.3389/fmats.2021.721035/full |
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