Volume 29 Issue 5
May  2003
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Li Songmei, Liu Jianhua, Wu Haoet al. Study of Microbiologically Influenced Corrosion of LY12 Aluminum Alloy with Atomic Force Microscopy[J]. Journal of Beijing University of Aeronautics and Astronautics, 2003, 29(5): 419-423. (in Chinese)
Citation: Li Songmei, Liu Jianhua, Wu Haoet al. Study of Microbiologically Influenced Corrosion of LY12 Aluminum Alloy with Atomic Force Microscopy[J]. Journal of Beijing University of Aeronautics and Astronautics, 2003, 29(5): 419-423. (in Chinese)

Study of Microbiologically Influenced Corrosion of LY12 Aluminum Alloy with Atomic Force Microscopy

  • Received Date: 27 Feb 2002
  • Publish Date: 31 May 2003
  • Sulfate-reducing bacteria induced corrosion of aluminum alloy LY12 was investig ated by using atomic force microscopy, as a function of concentrations of Fe 2+, Cl-, SO2-4 ions of the test solution. With in creasing Fe2+ concentration, the corrosion of LY12 alloy was obviously pro moted. Similar effect was observed with the addition of Cl- into the solution. The SO2-4 ion exhibited a promoting effect on corrosion at lo wer concentration and a reduced effect at higher concentration. According to th e result with AFM, the data measured by electrochemical method can be confirmed and showed, and the effect of Fe2+, Cl-, SO2-4 ions can be demonstrated by atomic force microscopy(AFM).

     

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