| Effect of Copper Content on the MIC Resistance in Pipeline Steel | |
| Zeng Yunpeng1,2; Yan Wei2,3; Shi Xianbo2,3; Yan Maocheng2; Shan Yiyin2,3; Yang Ke2 | |
| 通讯作者 | Yan Wei(weiyan@ima.ac.cn) |
| 2024-01-11 | |
| 发表期刊 | ACTA METALLURGICA SINICA
 |
| ISSN | 0412-1961 |
| 卷号 | 60期号:1页码:43-56 |
| 摘要 | Microbiologically induced corrosion (MIC), particularly those caused by sulfate-reducing bacteria (SRB), is considered as a destructive mechanism in buried pipeline steels, which has received considerable attention since its discovery a century ago. Research has shown that sessile cells that are attached to a metal surface embedded in biofilms with extracellular polymeric substances (EPS) are responsible for the occurrence of MIC. However, the commonly used MIC control strategy, i. e., biocides, cannot perform sterilization of sessile cells because of the protection of the biofilm. Cu-bearing pipeline steel is a newly developed steel that can be used for MIC control in buried pipes. The continuous release of cytotoxic Cu ions from the steel matrix leads to MIC resistance. However, the influence of Cu content on MIC resistance remains unclear. A lower Cu content in steel is not beneficial to its MIC resistance, whereas a higher Cu content can increase the cost and may cause"hot shortness"during thermal processing. Therefore, clarifying the influence of Cu content on the properties of Cu-bearing pipeline steel is important for the practical application of the steel. In the present study, the influence of Cu content (0, 0.7%, and 1.34%; mass fraction) on the corrosion behavior of X65 grade Cu-bearing pipeline steel was investigated through electrochemical measurements and surface analysis during 14 d immersion in sterile and SRB-inoculated NS4 solutions, respectively. Experimental results demonstrated that the antibacterial properties and corrosion resistance of the steel improved with the increase of Cu content. When Cu content was increased to 1.34%, the pitting corrosion of the steel in the SRB-inoculated medium was almost suppressed. The protective corrosion products formed in the sterile medium and antibacterial Cu ions continuously released from the steel in the SRB-inoculated medium resulted in the remarkable corrosion resistance of Cu-bearing pipeline steels. |
| 关键词 | microbiologically induced corrosion sulfate reduced bacteria (SRB) Cu-bearing pipeline steel antibacterial property corrosion resistance |
| 资助者 | National Natural Science Foundation of China |
| DOI | 10.11900/0412.1961.2022.00007 |
| 收录类别 | SCI |
| 语种 | 英语 |
| 资助项目 | National Natural Science Foundation of China |
| WOS研究方向 | Metallurgy & Metallurgical Engineering |
| WOS类目 | Metallurgy & Metallurgical Engineering |
| WOS记录号 | WOS:001153598100004 |
| 出版者 | SCIENCE PRESS |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.imr.ac.cn/handle/321006/184637 |
| 专题 | 中国科学院金属研究所 |
| 通讯作者 | Yan Wei |
| 作者单位 | 1.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shi changxu Innovat Ctr Adv Mat, Shenyang 110016, Peoples R China 3.Chinese Acad Sci, Inst Met Res, CAS Key Lab Nucl Mat & Safety Assessment, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zeng Yunpeng,Yan Wei,Shi Xianbo,et al. Effect of Copper Content on the MIC Resistance in Pipeline Steel[J]. ACTA METALLURGICA SINICA,2024,60(1):43-56. |
| APA | Zeng Yunpeng,Yan Wei,Shi Xianbo,Yan Maocheng,Shan Yiyin,&Yang Ke.(2024).Effect of Copper Content on the MIC Resistance in Pipeline Steel.ACTA METALLURGICA SINICA,60(1),43-56. |
| MLA | Zeng Yunpeng,et al."Effect of Copper Content on the MIC Resistance in Pipeline Steel".ACTA METALLURGICA SINICA 60.1(2024):43-56. |
| 条目包含的文件 | 条目无相关文件。 | |||||
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