The corrosion behaviors of steel A3 in synergistic action of Thiobacillus ferrooxidans (T.f) and electrochemically accelerated corrosion were studied by electrochemical, microbiology and surface analysis methods. The open circuit potential (Eocp) and electrochemical impedance spectroscopy (EIS) of the steel A3 electrodes were measured in leathen culture medium without and with T.f (simply called T.f solution in the following paper)in immersion electrode way at the time of the 2nd, 5th, 10th, 20th and 30th days, respectively. It was found that Eocp of the electrode for immersion in leathen culture medium shifted negatively with the immersion time while that for immersion in T.f solutions shifted negatively, then positively and finally negatively. On the 20th day, the corrosion of steel A3 for immersion in culture medium was in pitting initiation stage while that for immersion in T.f solutions was in pitting growth stage. It was found that the corrosion of steel A3 was accelerated by T.f. The morphology of corrosion product of steel A3 immersion in T.f solutions observed through scanning electron microscopy (SEM) transformed from solid globules to tabular plates and to spongy globules and plates.
参考文献
| [1] | A. Giaveno;E. Donati .Bioleaching of heazelwoodite by Thiobacillus spp[J].Process biochemistry,2001(10):955-962. |
| [2] | J.A.Rojas-Chapana;H.Tributsch .[J].Process Biochemistry,2000,35(08):815. |
| [3] | J.A. Rojas-Chapana;H. Tributsch .Biochemistry of sulfur extraction in bio-corrosion of pyrite by Thiobacillus ferrooxidans[J].Hydrometallurgy,2001(2/3):291-300. |
| [4] | M.Boon .Comparison of the oxidation kinetics of different pyrites in the presence of Thiobacillus ferrooxidans or Leptospirillum ferrooxidans[J].Hydrometallurgy,1999(1):57-72. |
| [5] | H.M.Li;J.J.Ke .[J].HYDROMETALLURGY,2001,61(03):151. |
| [6] | LI Hong-xu,QIU Guan-zhou,HU Yue-hua,CANG Da-qiang,WANG Dian-zuo.Electrochemical behavior of chalcopyrite in presence of Thiobacillus ferrooxidans[J].中国有色金属学会会刊（英文版）,2006(05):1240-1245. |
| [7] | J.Li;J.J.Lu;J.F.Gao .[J].Geochimica et Cosmochimica Acta,2006,70A(18):354. |
| [8] | M.Q.Qiu;S.Y.Xiong;W.M.Zhang .[J].Journal of University of Science and Technology Beijing Mineral Metallurgy Material,2006,13(01):7. |
| [9] | R.Mathur;J.Ruiz;S.Titley;L.Liermann H.Buss S.Brantley .[J].Geochimica et Cosmochimica Acta,2005,69(22):5233. |
| [10] | Y.Y.Uno;T.A.Kaneeda;S.I.Yokomizo .[J].Proc JSME,1996,39C(04):837. |
| [11] | Y.Kurosaki .[J].Jpn J Mech Res,1994,46(05):521. |
| [12] | ZHOU Ji-kui,QIN Wen-qing,NIU Yin-jian,LI Hua-xia.Ferrous ion oxidation by Thiobacillus ferrooxidans immobilized on activated carbon[J].中国有色金属学会会刊（英文版）,2006(04):927-930. |
| [13] | M. QuiIntana;G. Curutchet;E. Donati .Factors affecting chromium(VI) reduction by Thiobacillus ferrooxidans[J].Biochemical Engineering Journal,2001(1):11-15. |
| [14] | M.Anoyama;F.Kajiyama .[J].Corrosion Engineering,1995,44(12):787. |
| [15] | V.Milovan.Dissertation Abstracts International,Section,61-07 B[M].:3817. |
| [16] | Songmei LI;Jianhua LIU;Hao WU .[J].Journal of Beijing University Aeronaut & Astronaut,2003,29(05):419. |
| [17] | Songmei LI;Jianhua LIU;Xin LIANG;Xiaoli JIA .[J].Journal of Beijing University Aeronaut & Astronaut,2004,30(10):1013. |
| [18] | Jianhua LIU;Xin LIANG;Songmei LI .[J].Acta Metallurgica Sinica,2005,41(05):545. |
| [19] | Jianhua LIU;Xin LIANG;Songmei LI .[J].Journal of the Chinese Rare Earth Society,2006,24(01):81. |
| [20] | Xin LIANG;Jianhua LIU;Songmei LI .[J].Materials Protection,2007,40(336):16. |
| [21] | 李松梅,刘建华,武海燕,杨应广.一种控制腐蚀微生物的新方法--电化学杀菌[J].腐蚀与防护,2004(06):256-259,262. |
| [22] | Jianshe LIU;Guanzhou QIU;Dianzuo WANG;Jing XU .[J].Hydrometallurgy,1998,66(02):128. |
| [23] | Chunan CAO;Jia WANG;Haichao LIN .[J].Journal of Chinese Society for Corrosion and Protection,1989,9(04):261. |
| [24] | Jia WANG;Chunan CAO;Haichao LIN .[J].Journal of Chinese Society for Corrosion and Protection,1989,9(04):271. |
| [25] | L.C.Xu;H.P.Herber;Y.Fang;C.Kwong .[J].Journal of the Electrochemical Society,1999,146(12):4455. |
| [26] | W.Lee;W.G.Characklis .[J].Corrosion,1993,49(03):186. |
| [27] | Wensheng WANG;Dezhou WEI;Longxi ZHENG .[J].The Chinese Journal of Nonferrous Metals,1998,8(02):524. |
| [28] | J.Robert;E.M.Robert .[J].Corrosion Science,2003,45(04):693. |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%