Institutional Repository of Key Laboratory of Marine Environmental Corrosion and Bio-fouling, IOCAS
| Corrosion Behavior of 9 % Ni Steel for LNG Storage Tanks in 3.5 wt. % NaCl Solution | |
| Qin, Ming1,2; Xu, Weichen1,3; Yang, Lihui1,3; Li, Yantao1,3 | |
| 2018-07-01 | |
| Source Publication | INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
 |
| ISSN | 1452-3981 |
| Volume | 13Issue:7Pages:6537-6549 |
| Corresponding Author | Li, Yantao(ytli@qdio.ac.cn) |
| Abstract | The corrosion behavior of 9 % Ni steel in a 3.5 wt. % NaCl solution was investigated by electrochemical techniques including open circuit potential (OCP), potentiodynamic polarization, and electrochemical impedance spectroscopy (EIS). The principal components and morphology of 9 % Ni steel and the resulting corrosion layer are analysed by metallographic evaluation, scanning electron microscopy (SEM), energy-dispersive spectroscopy (EDS), Raman spectroscopy, X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FTIR). The results suggest that the anodic reaction is primarily the dissolution of the iron matrix and the cathodic process is mainly the reduction of oxygen. The corrosion resistance R-ct of 9 % Ni steel decreased with increasing immersion time and the corrosion layer did not provide protection. The outer section of the corrosion product consists mostly of lepidocrocite gamma-FeOOH, trace goethite alpha-FeOOH, and magnetite Fe3O4. The inner section is a nickel-rich layer, which is related to the alloying elements and reverted austenite. Moreover, the corrosion layer was found to accelerate the selective corrosion. |
| Keyword | 9 % Ni steel corrosion electrochemical tests reverted austenite nickel-rich layer |
| DOI | 10.20964/2018.07.24 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Key Research and Development Program of China[2017YFB0903700] ; National Science Foundation of China[41276074] |
| WOS Research Area | Electrochemistry |
| WOS Subject | Electrochemistry |
| WOS ID | WOS:000441819300029 |
| Publisher | ESG |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.qdio.ac.cn/handle/337002/159884 |
| Collection | 海洋环境腐蚀与与生物污损重点实验室 |
| Corresponding Author | Li, Yantao |
| Affiliation | 1.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Marine Environm Corros & Biofouling, Qingdao 266071, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Qingdao Natl Lab Marine Sci & Technol, Open Studio Marine Corros & Protect, Qingdao 266071, Peoples R China |
| First Author Affilication | Institute of Oceanology, Chinese Academy of Sciences |
| Corresponding Author Affilication | Institute of Oceanology, Chinese Academy of Sciences |
| Recommended Citation GB/T 7714 | Qin, Ming,Xu, Weichen,Yang, Lihui,et al. Corrosion Behavior of 9 % Ni Steel for LNG Storage Tanks in 3.5 wt. % NaCl Solution[J]. INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE,2018,13(7):6537-6549. |
| APA | Qin, Ming,Xu, Weichen,Yang, Lihui,&Li, Yantao.(2018).Corrosion Behavior of 9 % Ni Steel for LNG Storage Tanks in 3.5 wt. % NaCl Solution.INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE,13(7),6537-6549. |
| MLA | Qin, Ming,et al."Corrosion Behavior of 9 % Ni Steel for LNG Storage Tanks in 3.5 wt. % NaCl Solution".INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE 13.7(2018):6537-6549. |
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| File Name/Size | DocType | Version | Access | License | ||
| Corrosion Behavior o（1048KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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