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材料研究学报  2010, Vol. 24 Issue (4): 411-418    
  研究论文 本期目录 | 过刊浏览 |
海泥中SRB对纯锌阳极腐蚀行为的影响
刘奉令1,2, 张胜涛1, 张杰2,  李伟华2
1.重庆大学化学化工学院 重庆 400044
2.中国科学院海洋研究所 青岛 266071
Effects of SRB on Corrosion of Pure Zinc Anode in Marine Sediment
LIU Fengling1,2,  ZHANG Shengtao1,  ZHANG Jie2,  LI Weihua2
1.College of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044
2.Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071
引用本文:

刘奉令 张胜涛 张杰 李伟华. 海泥中SRB对纯锌阳极腐蚀行为的影响[J]. 材料研究学报, 2010, 24(4): 411-418.
, , , . Effects of SRB on Corrosion of Pure Zinc Anode in Marine Sediment[J]. Chin J Mater Res, 2010, 24(4): 411-418.

全文: PDF(1326 KB)  
摘要: 

测量锌阳极在海泥和含硫酸盐还原菌(SRB)海泥中构成的宏电池中的腐蚀, 研究了SRB对海泥中纯锌阳极材料的腐蚀行为的影响。结果表明, SRB能快速破坏纯锌的表面钝化膜, 提高锌阳极在海泥中的自腐蚀速率。 在含SRB和无SRB海泥构成的宏电池体系中, 含菌海泥中的锌试样为电偶对的阳极, 腐蚀增大; 无菌海泥中的试样为电偶对的阴极, 腐蚀受到抑制。

关键词 材料失效与保护 硫酸盐还原菌  电化学阻抗谱  锌  海泥    
Abstract

Effects of Sulfate Reducing Bacteria (SRB) on corrosion of pure zinc anode in marine sediment was investigated by using electrochemical impedance spectroscopy, scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS). The macrocell corrosion of the coupons with or without SRB in marine sediment was also studied. The results show that the passive film of pure zinc in marine sediment is quickly destroyed by SRB, and the corrosion rate of the coupons is increased. The corrosion of samples in the marine sediment with SRB is accelerated as the anode of macrocell, but the corrosion of samples in the marine sediment without SRB is inhibited as the cathode of macrocell.

Key wordsmaterials failure and protection     sulfate reducing bacteria    electrochemical impedance spectroscopy     zinc    marine sediment
收稿日期: 2010-04-01     
ZTFLH: 

TG172

 
基金资助:

科技部国家支撑计划2007BAB27B01和中国科学院知识创新工程重要方向KZCX2-YW-210资助项目。

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