| Under-Deposit Corrosion of Carbon Steel Beneath Full Coverage of CaCO3 Deposit Layer under Different Atmospheres | |
| Pang, Lin1,2; Wang, Zhengbin1; Emori, Wilfred3; Zheng, Yugui1 | |
| Corresponding Author | Wang, Zhengbin(zbwang12s@imr.ac.cn) |
| 2021-06-01 | |
| Source Publication | JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
 |
| ISSN | 1059-9495 |
| Pages | 12 |
| Abstract | The under-deposit corrosion of carbon steel beneath the full coverage of CaCO3 deposit layer in 3.5 wt.% NaCl solution under different atmospheres has been investigated by electrochemical tests, wire beam electrode technique and morphology characterization. The results indicate that dissolved O-2 and CO2 can affect the corrosion of carbon steel under the CaCO3 deposit layer by influencing the cathodic reactions, with the oxygen reduction reaction and reduction reaction of H2CO3 being the dominant cathodic reactions for the systems without and with CO2 injection, respectively. Dissolved O-2 can enhance the localized under-deposit corrosion tendency by forming oxygen concentration cells beneath the deposit layer, while its effect on the general under-deposit corrosion rate depends on the main cathodic reactions. Under atmospheres without CO2 injection, increased concentration of dissolved O-2 can accelerate the general corrosion rate by promoting the oxygen reduction reaction, and it can decrease the general corrosion rate under CO2-purged atmospheres by decreasing the amounts of H2CO3 for the cathodic reaction. |
| Keyword | CaCO3 deposit layer carbon dioxide carbon steel dissolved oxygen wire beam electrode under-deposit corrosion |
| Funding Organization | Natural Science Foundation of Liaoning Province ; Opening Project of Material Corrosion and Protection Key Laboratory of Sichuan Province |
| DOI | 10.1007/s11665-021-05926-7 |
| Indexed By | SCI |
| Language | en |
| Funding Project | Natural Science Foundation of Liaoning Province[2019BS249] ; Opening Project of Material Corrosion and Protection Key Laboratory of Sichuan Province[2017CL18] |
| WOS Research Area | Materials Science |
| WOS Subject | Materials Science, Multidisciplinary |
| WOS ID | WOS:000656822500003 |
| Publisher | SPRINGER |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/160372 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Wang, Zhengbin |
| Affiliation | 1.Chinese Acad Sci, Inst Met Res, CAS Key Lab Nucl Mat & Safety Assessment, 62 Wencui Rd, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, 96 Jinzhai Rd, Hefei 230026, Peoples R China 3.Sichuan Univ Sci & Engn, Sch Mat Sci & Engn, Zigong 643000, Sichuan, Peoples R China |
| Recommended Citation GB/T 7714 | Pang, Lin,Wang, Zhengbin,Emori, Wilfred,et al. Under-Deposit Corrosion of Carbon Steel Beneath Full Coverage of CaCO3 Deposit Layer under Different Atmospheres[J]. JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE,2021:12. |
| APA | Pang, Lin,Wang, Zhengbin,Emori, Wilfred,&Zheng, Yugui.(2021).Under-Deposit Corrosion of Carbon Steel Beneath Full Coverage of CaCO3 Deposit Layer under Different Atmospheres.JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE,12. |
| MLA | Pang, Lin,et al."Under-Deposit Corrosion of Carbon Steel Beneath Full Coverage of CaCO3 Deposit Layer under Different Atmospheres".JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE (2021):12. |
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