Electrochemical Investigation of Corrosion of X80 Steel under Elastic and Plastic Tensile Stress in CO<sub>2</sub> Environment
An investigation into the electrochemical corrosion behavior of X80 pipeline steel under different elastic and plastic tensile stress in a CO<sub>2</sub>-saturated NaCl solution has been carried out by using open-circuit potential, potentiodynamic polarization, electrochemical impedance...
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| Format: | Article |
| Language: | English |
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MDPI AG
2018-11-01
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| Series: | Metals |
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| Online Access: | https://www.mdpi.com/2075-4701/8/11/949 |
| _version_ | 1818276643882401792 |
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| author | Wei Wu Hailong Yin Hao Zhang Jia Kang Yun Li Yong Dan |
| author_facet | Wei Wu Hailong Yin Hao Zhang Jia Kang Yun Li Yong Dan |
| author_sort | Wei Wu |
| collection | DOAJ |
| description | An investigation into the electrochemical corrosion behavior of X80 pipeline steel under different elastic and plastic tensile stress in a CO<sub>2</sub>-saturated NaCl solution has been carried out by using open-circuit potential, potentiodynamic polarization, electrochemical impedance spectroscopy, and surface analysis techniques. The results show that the corrosion rate of X80 steel first increases and then slightly decreases with the increase of elastic tensile stress, whereas the corrosion rate sharply increases with the increase of plastic tensile stress. Both elastic and plastic tensile stress can enhance steel corrosion by improving the electrochemical activity of both anodic and cathodic reactions. Moreover, compared with elastic tensile stress, plastic tensile stress has a more significant effect. Furthermore, electrochemical reactions for CO<sub>2</sub> corrosion and mechanoelectrochemical effect are used to reasonably explain the corrosion behavior of stressed X80 steel in CO<sub>2</sub> environment. |
| first_indexed | 2024-12-12T22:48:55Z |
| format | Article |
| id | doaj.art-81beac5b076f488fb096804cd6a62353 |
| institution | Directory Open Access Journal |
| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-12-12T22:48:55Z |
| publishDate | 2018-11-01 |
| publisher | MDPI AG |
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| series | Metals |
| spelling | doaj.art-81beac5b076f488fb096804cd6a623532022-12-22T00:09:06ZengMDPI AGMetals2075-47012018-11-0181194910.3390/met8110949met8110949Electrochemical Investigation of Corrosion of X80 Steel under Elastic and Plastic Tensile Stress in CO<sub>2</sub> EnvironmentWei Wu0Hailong Yin1Hao Zhang2Jia Kang3Yun Li4Yong Dan5School of Chemical Engineering, Northwest University, Xi’an 710069, ChinaSchool of Chemical Engineering and Technology, Xi’an Jiaotong University, Xi’an 710049, ChinaSchool of Chemical Engineering and Technology, Xi’an Jiaotong University, Xi’an 710049, ChinaSchool of Chemical Engineering and Technology, Xi’an Jiaotong University, Xi’an 710049, ChinaSchool of Chemical Engineering and Technology, Xi’an Jiaotong University, Xi’an 710049, ChinaSchool of Chemical Engineering, Northwest University, Xi’an 710069, ChinaAn investigation into the electrochemical corrosion behavior of X80 pipeline steel under different elastic and plastic tensile stress in a CO<sub>2</sub>-saturated NaCl solution has been carried out by using open-circuit potential, potentiodynamic polarization, electrochemical impedance spectroscopy, and surface analysis techniques. The results show that the corrosion rate of X80 steel first increases and then slightly decreases with the increase of elastic tensile stress, whereas the corrosion rate sharply increases with the increase of plastic tensile stress. Both elastic and plastic tensile stress can enhance steel corrosion by improving the electrochemical activity of both anodic and cathodic reactions. Moreover, compared with elastic tensile stress, plastic tensile stress has a more significant effect. Furthermore, electrochemical reactions for CO<sub>2</sub> corrosion and mechanoelectrochemical effect are used to reasonably explain the corrosion behavior of stressed X80 steel in CO<sub>2</sub> environment.https://www.mdpi.com/2075-4701/8/11/949pipeline steeltensile stresscorrosionpotentiodynamic polarizationEIS |
| spellingShingle | Wei Wu Hailong Yin Hao Zhang Jia Kang Yun Li Yong Dan Electrochemical Investigation of Corrosion of X80 Steel under Elastic and Plastic Tensile Stress in CO<sub>2</sub> Environment Metals pipeline steel tensile stress corrosion potentiodynamic polarization EIS |
| title | Electrochemical Investigation of Corrosion of X80 Steel under Elastic and Plastic Tensile Stress in CO<sub>2</sub> Environment |
| title_full | Electrochemical Investigation of Corrosion of X80 Steel under Elastic and Plastic Tensile Stress in CO<sub>2</sub> Environment |
| title_fullStr | Electrochemical Investigation of Corrosion of X80 Steel under Elastic and Plastic Tensile Stress in CO<sub>2</sub> Environment |
| title_full_unstemmed | Electrochemical Investigation of Corrosion of X80 Steel under Elastic and Plastic Tensile Stress in CO<sub>2</sub> Environment |
| title_short | Electrochemical Investigation of Corrosion of X80 Steel under Elastic and Plastic Tensile Stress in CO<sub>2</sub> Environment |
| title_sort | electrochemical investigation of corrosion of x80 steel under elastic and plastic tensile stress in co sub 2 sub environment |
| topic | pipeline steel tensile stress corrosion potentiodynamic polarization EIS |
| url | https://www.mdpi.com/2075-4701/8/11/949 |
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