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题名: Effect of Cu Addition to 2205 Duplex Stainless Steel on the Resistance against Pitting Corrosion by the Pseudomonas aeruginosa Biofilm
作者: Li, Ping;  Zhao, Yang;  Liu, Yuzhi;  Zhao, Ying;  Xu, Dake;  Yang, Chunguang;  Zhang, Tao;  Gu, Tingyue;  Yang, Ke
发表日期: 2017-7-1
摘要: The effect of copper addition to 2205 duplex stainless steel (DSS) on its resistance against pitting corrosion by the Pseudomonas aeruginosa biofilm was investigated using electrochemical and surface analysis techniques. Cu addition decreased the general corrosion resistance, resulting in a higher general corrosion rate in the sterile medium. Because DSS usually has a very small general corrosion rate, its pitting corrosion resistance is far more important. In this work, it was shown that 2205-3%Cu DSS exhibited a much higher pitting corrosion resistance against the P. aeruginosa biofilm compared with the 2205 DSS control, characterized by no significant change in the pitting potential and critical pitting temperature (CPT) values. The strong pitting resistance ability of 2205-3%Cu DSS could be attributed to the copper-rich phases on the surface and the release of copper ions, providing a strong antibacterial ability that inhibited the attachment and growth of the corrosive P. aeruginosa biofilm. (C) 2016 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.
Appears in Collections:中国科学院金属研究所_期刊论文

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Recommended Citation:
Li, Ping,Zhao, Yang,Liu, Yuzhi,et al. Effect Of Cu Addition To 2205 Duplex Stainless Steel On The Resistance Against Pitting Corrosion By The Pseudomonas Aeruginosa Biofilm[J]. Journal Of Materials Science & Technology,2017,33(7):723-727.

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