Investigation on Corrosion Resistance of Welded Cu-Bearing 304L Stainless Steel AgainstPseudomonas aeruginosa
文献类型：期刊论文
| 作者 | Yin, Lu1,2; Xi, Tong1; Yang, Chunguang1; Zhao, Jinlong1; Sun, Yupeng1; Zhao, Hanyu1; Yang, Ke1 |
| 刊名 | FRONTIERS IN MATERIALS
 |
| 出版日期 | 2020-06-05 |
| 卷号 | 7页码:11 |
| 关键词 | Cu-bearing stainless steels tungsten inert gas welding microbiologically influenced corrosion confocal laser scanning microscopy pitting corrosion |
| ISSN号 | 2296-8016 |
| DOI | 10.3389/fmats.2020.00102 |
| 通讯作者 | Yang, Chunguang(cgyang@imr.ac.cn) |
| 英文摘要 | In this work, the microbiologically influenced corrosion (MIC) behaviors of welded 304L stainless steel (304L SS) and Cu-bearing 304L SS (304L-Cu SS) in aPseudomonas aeruginosaculture medium were comparatively studied. Open circuit potential (OCP), linear polarization resistance (LPR), electrochemical impedance spectroscopy (EIS), and potentiodynamic polarization were employed to characterize the corrosion behavior of the (welded) steel substrates. The biofilm morphology and the live/dead staining condition of the sessile cells were observed by scanning electron microscopy (SEM) and confocal laser scanning microscopy (CLSM). And the pitting corrosion was investigated with a 3D mode of CLSM. The experimental results showed that the copper (Cu) addition had no obvious influence on the microstructure of 304L SS in welding zones (WZs) and base metal. The WZs of 304L SS and 304L-Cu SS in sodium chloride solution possessed a lower pitting potential and a higher corrosion current density. However, owing to the continuous release of Cu ions, inhibiting the excretion of corrosive extracellular polymeric substances (EPSs) and the extracellular electron transport (EET) process, both the localized and uniform corrosion attack induced by theP. aeruginosabiofilm was significantly reduced. In comparison with that of 304L SS, the corrosion resistance of 304L-Cu SS in the WZ againstP. aeruginosawas obviously higher. |
| 资助项目 | National Key Research and Development Program of China[2016YFB0300205] ; National Natural Science Foundation of China[U1906226] ; National Natural Science Foundation of China[51771199] ; State Key Program of the National Natural Science of China[51631009] ; Shenzhen Science and Technology Research Fund[JCYJ20160608153641020] |
| WOS研究方向 | Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000543182900001 |
| 出版者 | FRONTIERS MEDIA SA |
| 资助机构 | National Key Research and Development Program of China ; National Natural Science Foundation of China ; State Key Program of the National Natural Science of China ; Shenzhen Science and Technology Research Fund |
| 源URL | [http://ir.imr.ac.cn/handle/321006/139495]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Yang, Chunguang |
| 作者单位 | 1.Chinese Acad Sci, Inst Met Res, Shenyang, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yin, Lu,Xi, Tong,Yang, Chunguang,et al. Investigation on Corrosion Resistance of Welded Cu-Bearing 304L Stainless Steel AgainstPseudomonas aeruginosa[J]. FRONTIERS IN MATERIALS,2020,7:11. |
| APA | Yin, Lu.,Xi, Tong.,Yang, Chunguang.,Zhao, Jinlong.,Sun, Yupeng.,...&Yang, Ke.(2020).Investigation on Corrosion Resistance of Welded Cu-Bearing 304L Stainless Steel AgainstPseudomonas aeruginosa.FRONTIERS IN MATERIALS,7,11. |
| MLA | Yin, Lu,et al."Investigation on Corrosion Resistance of Welded Cu-Bearing 304L Stainless Steel AgainstPseudomonas aeruginosa".FRONTIERS IN MATERIALS 7(2020):11. |
入库方式： OAI收割
来源：金属研究所
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