Investigation on Corrosion Resistance of Welded Cu-Bearing 304L Stainless Steel AgainstPseudomonas aeruginosa

doi:10.3389/fmats.2020.00102

IMR OpenIR

	Investigation on Corrosion Resistance of Welded Cu-Bearing 304L Stainless Steel AgainstPseudomonas aeruginosa
	Yin, Lu 1,2; Xi, Tong 1; Yang, Chunguang 1; Zhao, Jinlong 1; Sun, Yupeng 1; Zhao, Hanyu 1; Yang, Ke 1
通讯作者	Yang, Chunguang(cgyang@imr.ac.cn)
	2020-06-05
发表期刊	FRONTIERS IN MATERIALS
ISSN	2296-8016
卷号	7 页码:11
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.
关键词	Cu-bearing stainless steels tungsten inert gas welding microbiologically influenced corrosion confocal laser scanning microscopy pitting corrosion
资助者	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
收录类别	SCI
语种	英语
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
WOS类目	Materials Science, Multidisciplinary
WOS记录号	WOS:000543182900001
出版者	FRONTIERS MEDIA SA
引用统计	被引频次：3[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/139493
专题	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.