Enhanced resistance of 2205 Cu-bearing duplex stainless steel towards microbiologically influenced corrosion by marine aerobic Pseudomonas aeruginosa biofilms

IMR OpenIR

	Enhanced resistance of 2205 Cu-bearing duplex stainless steel towards microbiologically influenced corrosion by marine aerobic Pseudomonas aeruginosa biofilms
其他题名	Enhanced resistance of 2205 Cu-bearing duplex stainless steel towards microbiologically influenced corrosion by marine aerobic Pseudomonas aeruginosa biofilms
	Xu Dake 1; Zhou Enze 1; Zhao Ying 3; Li Huabing 4; Liu Zhiyong 2; Zhang Dawei 2; Yang Chunguang 3; Lin Hai 2; Li Xiaogang 2; Yang Ke 3
	2018
发表期刊	JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
ISSN	1005-0302
卷号	34 期号:8 页码:1325-1336
摘要	An antibacterial 2205-Cu duplex stainless steel (DSS) was shown to inhibit the formation and growth of corrosive marine biofilms by direct contact with copper-rich phases and the release of Cu2+ ions from the 2205-Cu DSS surface. In this work, the microbiologically influenced corrosion (MIC) resistance of 2205-Cu DSS in the presence of the corrosive marine bacterium Pseudomonas aeruginosa was investigated. The addition of copper improved the mechanical properties such as the yield strength, the tensile strength and the hardness of 2205 DSS. Electrochemical test results from linear polarization resistance (LPR), electrochemical impedance spectroscopy (EIS) and critical pitting temperature (CPT) measurements showed that 2205-Cu DSS possessed a larger polarization resistance (R-p), charge transfer resistance (R-ct) and CPT values, indicating the excellent MIC resistance of 2205-Cu DSS against the corrosive P. aeruginosa biofilm. The live/dead staining results and the SEM images of biofilm confirmed the strong antibacterial ability of 2205-Cu DSS. The largest pit depth of 2205-Cu DSS was considerably smaller than that of 2205 DSS after 14 d in the presence of P. aeruginosa (2.2 mu m vs 12.5 mu m). 2205-Cu DSS possessed a superior MIC resistance to regular 2205 DSS in the presence of aerobic P. aeruginosa. (C) 2017 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.
其他摘要	An antibacterial 2205-Cu duplex stainless steel (DSS) was shown to inhibit the formation and growth of corrosive marine biofilms by direct contact with copper-rich phases and the release of Cu2+ ions from the 2205-Cu DSS surface. In this work, the microbiologically influenced corrosion (MIC) resistance of 2205-Cu DSS in the presence of the corrosive marine bacterium Pseudomonas aeruginosa was investigated. The addition of copper improved the mechanical properties such as the yield strength, the tensile strength and the hardness of 2205 DSS. Electrochemical test results from linear polarization resistance (LPR), electrochemical impedance spectroscopy (EIS) and critical pitting temperature (CPT) measurements showed that 2205-Cu DSS possessed a larger polarization resistance (R-p), charge transfer resistance (R-ct) and CPT values, indicating the excellent MIC resistance of 2205-Cu DSS against the corrosive P. aeruginosa biofilm. The live/dead staining results and the SEM images of biofilm confirmed the strong antibacterial ability of 2205-Cu DSS. The largest pit depth of 2205-Cu DSS was considerably smaller than that of 2205 DSS after 14 d in the presence of P. aeruginosa (2.2 mu m vs 12.5 mu m). 2205-Cu DSS possessed a superior MIC resistance to regular 2205 DSS in the presence of aerobic P. aeruginosa. (C) 2017 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.
关键词	CRITICAL PITTING TEMPERATURE PURE MAGNESIUM CARBON-STEEL MICROSTRUCTURE BEHAVIOR COPPER SUSCEPTIBILITY BACTERIA SEAWATER STRAIN Microbiologically influenced corrosion Cu-bearing duplex stainless steel Pseudomonas aeruginosa Antibacterial
收录类别	CSCD
语种	英语
资助项目	[National Natural Science Foundation of China] ; [Shenzhen Science and Technology Research Funding] ; [National Basic Research Program of China] ; [National Environmental Corrosion Platform (NECP)]
CSCD记录号	CSCD:6308745
引用统计	被引频次：9[CSCD] [CSCD记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/148972
专题	中国科学院金属研究所
作者单位	1.中国科学院金属研究所 2.University Sci & Technol Beijing, Corros & Protect Ctr, Beijing 100083, Peoples R China 3.中国科学院 4.东北大学
推荐引用方式 GB/T 7714	Xu Dake,Zhou Enze,Zhao Ying,et al. Enhanced resistance of 2205 Cu-bearing duplex stainless steel towards microbiologically influenced corrosion by marine aerobic Pseudomonas aeruginosa biofilms[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2018,34(8):1325-1336.
APA	Xu Dake.,Zhou Enze.,Zhao Ying.,Li Huabing.,Liu Zhiyong.,...&Yang Ke.(2018).Enhanced resistance of 2205 Cu-bearing duplex stainless steel towards microbiologically influenced corrosion by marine aerobic Pseudomonas aeruginosa biofilms.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,34(8),1325-1336.
MLA	Xu Dake,et al."Enhanced resistance of 2205 Cu-bearing duplex stainless steel towards microbiologically influenced corrosion by marine aerobic Pseudomonas aeruginosa biofilms".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 34.8(2018):1325-1336.