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

	Enhanced resistance of 2205 Cu-bearing duplex stainless steel towards microbiologically influenced corrosion by marine aerobic Pseudomonas aeruginosa biofilms
	Zhao, Ying; Xu, Dake; Li, Huabing; Liu, Zhiyong; Zhang, Dawei; Zhou, Enze; Yang, Chunguang; Lin, Hai; Li, Xiaogang; Yang, Ke
刊名	JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
	2018
文献子类	期刊论文
英文摘要	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.
URL标识	查看原文
语种	英语
内容类型	期刊论文
源URL	[http://ir.siat.ac.cn:8080/handle/172644/14720]
专题	深圳先进技术研究院_医药所
推荐引用方式 GB/T 7714	Zhao, Ying,Xu, Dake,Li, Huabing,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.
APA	Zhao, Ying.,Xu, Dake.,Li, Huabing.,Liu, Zhiyong.,Zhang, Dawei.,...&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.
MLA	Zhao, Ying,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 (2018).