期刊
CORROSION SCIENCE
卷 179, 期 -, 页码 -出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.corsci.2020.109141
关键词
Duplex stainless steel; CLSM; SEM; XPS; Microbiological corrosion; Pitting corrosion
资金
- National Natural Science Foundation of China [51871050, U1906226, U1660118, U2006219]
- Fundamental Research Funds for the Central Universities [N180205021, N180203019, N2002019]
- Liaoning Revitalization Talents Program [XLYC1907158]
- Youth Innovation Promotion Association CAS [2018221]
- Shi-changxu Innovation Center for Advanced Materials, Institute of Metal Research, Chinese Academy of Sciences
The addition of cerium over 0.18 wt.% effectively inhibits the formation of SRB biofilm on the surface of 2205-Cu-Ce DSS, significantly reducing corrosion tendency, indicating that exceeding a critical value of cerium addition can enhance the antibacterial effect of Cu-bearing 2205 DSS against SRB-induced corrosion.
Influences of Ce additions (0.08, 0.18 and 0.30 wt.%) on microbiologically influenced corrosion of Cu-bearing 2205 duplex stainless steel (DSS) were investigated through surface analysis and electrochemical measurements during 14-day exposure to a strain of corrosive sulfate reducing bacterium, Desulfovibrio desulfuricans. Results demonstrate the addition of Ce over 0.18 wt.% effectively inhibited the formation of SRB biofilm on surface of 2205-Cu-Ce DSS, and decreased the corrosion tendency to a great degree, indicating that Ce addition over a critical value can significantly enhance antibacterial effect of Cu-bearing 2205 DSS against SRB induced corrosion.
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