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Citation: QIN Li-Yan, SONG Shi-Zhe, LI Ya-Hong, WU Jie. Microbial-Corrosion Resistance of the Cu-Containing Ferrite Stainless Steels after Antibacterial Treatment[J]. Acta Physico-Chimica Sinica, ;2008, 24(05): 895-900. doi: 10.3866/PKU.WHXB20080528 shu

Microbial-Corrosion Resistance of the Cu-Containing Ferrite Stainless Steels after Antibacterial Treatment

1.
School of Material Science and Engineering, Tianjin University, Tianjin 300072, P. R. China; State Key Laboratory for Corrosion and Protection of Metals, Shenyang 110016, P. R. China; Technology Center of Shanxi Taigang Stainless Steel Cooperation Limited, Taiyuan 030001, P. R. China; State Ocean Bureau Tianjin Seawater Desalting Institute, Tianjin 300192, P. R. China

Received Date: 9 October 2007
Available Online: 27 February 2008

Microbial-corrosion resistance of Cu-containing ferrite stainless steels after antibacterial treatment in heterotrophic bacteria culture medium was investigated by means of various electrochemical techniques and microbial methods. The results showed that corrosion potential changed orderly along with metabolism of heterotrophic bacteria. Antibacterial treatment helped to enhance the stability of passive film and reduce the pitting sensibility when stainless steel was immersed in culture medium. Dispersion distributed ε-Cu phase on the surface of antibacterial stainless steel depressed activity of heterotrophic bacteria, thereafter alleviated the heterotrophic bacteria corrosion and improved the microbiological corrosion resistance of antibacterial stainless steel.
- Microbial-corrosion; Heterotrophic bacteria; Aerobic bacteria; Stainless steel
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