Failure analysis of leaking firefighting pipeline used in nuclear power plant: Corrosion development process and key influence factors
文献类型：期刊论文
| 作者 | Liu, Xiaozhen1,2; Li, Nana3; Zhang, Jin3; Liu, Wenfang3; Wang, Yuhui3; Song, Yingwei1,2; Dong, Kaihui1,2; Cai, Yong1,2; Han, En-Hou1,4,5 |
| 刊名 | ENGINEERING FAILURE ANALYSIS
 |
| 出版日期 | 2024-07-01 |
| 卷号 | 161页码:14 |
| 关键词 | Firefighting pipeline A106 steel Corrosion nodulation Corrosion bulge Corrosion pit Microbial corrosion |
| ISSN号 | 1350-6307 |
| DOI | 10.1016/j.engfailanal.2024.108341 |
| 通讯作者 | Song, Yingwei(ywsong@imr.ac.cn) |
| 英文摘要 | A penetrating hole has been found in the inner wall of the firefighting pipeline (A106 steel) used for 20 years in a nuclear power plant of China, and the pipeline is filled with almost stagnant tap water before failure. The failed pipeline is taken from a vertically placed water outlet pipeline. The corrosion process and key influence factors of the failed firefighting pipeline were studied using optical microscopy (OM), scanning electron microscopy (SEM) and X-ray diffraction (XRD). The results show that there exist two typical corrosion characteristics on the inner wall of the failed pipeline besides leakage hole, that is, corrosion nodulation and corrosion bulge. The corrosion nodulation, mainly consisting of a mixture of calcium and iron oxides, is the initiation position of perforation corrosion, and the iron-oxidizing bacteria (IOB) play a key role in the formation of corrosion nodulation. Then the sulfate-reducing bacteria (SRB) is involved in the propagation of corrosion nodulation when the dissolved oxygen concentration is low. The corrosion nodulation gradually become loose and form large bulge with extended service time. The corrosion pits under the corrosion bulge also develop gradually. Eventually, the inner wall of the pipeline is thinned and perforated. |
| 资助项目 | LingChuang Research Project of China National Nuclear Corporation |
| WOS研究方向 | Engineering ; Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:001293788800001 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 资助机构 | LingChuang Research Project of China National Nuclear Corporation |
| 源URL |  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Song, Yingwei |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Nucl Mat & Safety Assessment, Inst Met Res, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 3.China Nucl Power Engn Co Ltd, Beijing 100089, Peoples R China 4.Inst Corros Sci & Technol, Guangzhou 510530, Peoples R China 5.South China Univ Technol, Sch Mat Sci & Engn, Guangzhou 510641, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Xiaozhen,Li, Nana,Zhang, Jin,et al. Failure analysis of leaking firefighting pipeline used in nuclear power plant: Corrosion development process and key influence factors[J]. ENGINEERING FAILURE ANALYSIS,2024,161:14. |
| APA | Liu, Xiaozhen.,Li, Nana.,Zhang, Jin.,Liu, Wenfang.,Wang, Yuhui.,...&Han, En-Hou.(2024).Failure analysis of leaking firefighting pipeline used in nuclear power plant: Corrosion development process and key influence factors.ENGINEERING FAILURE ANALYSIS,161,14. |
| MLA | Liu, Xiaozhen,et al."Failure analysis of leaking firefighting pipeline used in nuclear power plant: Corrosion development process and key influence factors".ENGINEERING FAILURE ANALYSIS 161(2024):14. |
入库方式： OAI收割
来源：金属研究所
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