| Investigation on Corrosion Resistance of Welded Cu-Bearing 304L Stainless Steel AgainstPseudomonas aeruginosa | |
| Yin, Lu1,2; Xi, Tong1; Yang, Chunguang1; Zhao, Jinlong1; Sun, Yupeng1; Zhao, Hanyu1; Yang, Ke1 | |
| Corresponding Author | Yang, Chunguang(cgyang@imr.ac.cn) |
| 2020-06-05 | |
| Source Publication | FRONTIERS IN MATERIALS
 |
| ISSN | 2296-8016 |
| Volume | 7Pages:11 |
| Abstract | 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. |
| Keyword | Cu-bearing stainless steels tungsten inert gas welding microbiologically influenced corrosion confocal laser scanning microscopy pitting corrosion |
| Funding Organization | 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 |
| DOI | 10.3389/fmats.2020.00102 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | 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 Research Area | Materials Science |
| WOS Subject | Materials Science, Multidisciplinary |
| WOS ID | WOS:000543182900001 |
| Publisher | FRONTIERS MEDIA SA |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/139493 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Yang, Chunguang |
| Affiliation | 1.Chinese Acad Sci, Inst Met Res, Shenyang, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang, Peoples R China |
| Recommended Citation 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. |
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