|
|
|
| Effects of Medium flow characteristic and Material Surface Appearance on Corrosion Behavior of HSn70-1A Alloy under Biofilm of SRB |
| ; |
| 北京交通大学土木建筑工程学院04硕3班 |
|
|
|
|
Abstract The effect of sulfate-reducing bacteria (SRB) on corrosion behavior of HSn70-1A alloy were studied by electrochemical, microbiology and surface analysis methods. The results showed that the free corrosion poten?鄄tial of the alloy shifted negatively when SRB was inoculated,the polarization resistance decreased obviously, which corresponds to an increased corrosion rate. The serious pitting corrosion occurring on the alloy surface un?鄄der the action of SRB was observed by SEM. Furthermore, influence of medium flow characteristic and material surface appearance on corrosion behavior of HSn70－1A alloy under the biofilm of SRB were researched. It was showed that the average corrosion rate was higher and the SRB count in the biofilm was less when test piece was immersed in the flowing batch culture medium inoculated with SRB than in the static batch culture medium in?鄄oculated with SRB . Thus the flow of medium could speed up the corrosion rate . After being coated in the mix?鄄ture corrosion inhibitor of MBT and BTA beforehand, the copper electrode had more positive free corrosion po?鄄tential and higher linear polarization resistance in the culture medium inoculated with SRB than the one without being coated, which demonstrated that the resistance of HSn70－1A alloy against microbiologically influenced cor?鄄rosion increased obviously.
|
|
Received: 02 June 2006
|
[1]Liu J,Xu L M,Zheng J S.A study on corrosion behavior under the biofilm of sulfate-reducing bacteria on Cu-Zn alloy[J].J.Chin.Soc.Corros.Prot.,2001,21(6):346~348(刘靖,许立铭,郑家.硫酸盐还原菌生物膜下Cu-Zn合金的腐蚀研究[J].中国腐蚀与防护学报,2001,21(6):346~348)
[2]Liu H F,Wang M F,Xu L M,et al.The role of Ca2+on the microbio-logically induced corrosion of carbon steel[J].J.Chin.Soc.Cor-ros.Prot.,2004,24(1):45~47(刘宏芳,汪梅芳,许立铭等.钙离子对碳钢微生物腐蚀的影响[J].中国腐蚀与防护学报,2004,24(1):45~47)
[3]Liu H F,Liu L W,Xu L M,et al.Effects of biofilm on corrosion of carbon steel[J].J.Chin.Soc.Corros.Prot.,1999,19(5):291~295(刘宏芳,刘烈炜,许立铭等.生物膜对碳钢腐蚀的影响[J].中国腐蚀与防护学报,1999,19(5):291~295)
[4]Sun C,Han E H.Effects of SRB on corrosion of1Cr18Ni9Ti stain-less steel in soils of Cl-[J].J.Chin.Soc.Corros.Prot.,2003,23(1):46~51(孙成,韩恩厚.土壤中SRB及Cl-对1Cr18Ni9Ti不锈钢腐蚀的相互影响[J].中国腐蚀与防护学报,2003,23(1):46~51)
[5]Zhang X L,Chen Z X,Liu H H,et al.Effects of environment fac-tors on the growth of sulfate-reducing bacteria[J].J.Chin.Soc.Corros.Prot.,2000,20(4):224~229(张小里,陈志昕,刘海洪等.环境因素对硫酸盐还原菌生长的影响[J].中国腐蚀与防护学报,2000,20(4):224~229)
[6]Liu H F.Study on the corrosion mechanism of carbon steel under sulfate-reducing bacteria biofilm[D].Wuhan:Huazhong University木焱of Science and Tecnology,2000(刘宏芳.硫酸盐还原菌生物膜下碳钢腐蚀机理研究[D].武汉:华中科技大学,2000)
[7]Liu J.Study on the corrosion and corrosion electrochemical behav-ior of sulfate-reducing bacteria[D].Wuhan:Huazhong University of Science and Tecnology,2001(刘靖.硫酸盐还原菌的腐蚀规律及其腐蚀电化学行为研究[D].武汉:华中科技大学,2001)
[8]Percival S L,Knapp J S,Wales D X.Physical factors influencing bacterial fouling of type304and306stainless steel[J].Bri.Cor-ros.J.,1998,33(2):121~129
[9]Zhang L N,Wang Y H,Qin X,et al.Research and development of inhibitors for copper alloy corrosion in water treatment system[J].Jiangsu Chem.Ind.,2005,33(1):13~16(张凌娜,王永华,秦晓等.水处理系统中铜缓蚀剂的应用研究[J].江苏化工,2005,33(1):13~16)
[10]Marcus P.Surface science approach of corrosion phenomena[J].Electrochem.Acta,1998,43(1):109~118
[11]Liu H F,Xu L M,Zheng J S.Influence of SRB biofilm on corrosion of carbon steel[J].J.Chin.Soc.Corros.Prot.,2000,20(1):41~46(刘宏芳,许立铭,郑家.SRB生物膜与碳钢腐蚀的关系[J].中国腐蚀与防护学报,2000,20(1):41~46)
[12]Huang G S,Liu G Z,Duan D X,et al.Effect of SRB on corrosion of Cu-Ni alloy[J].Corros.Prot.,2004,25(6):243~244(黄国胜,刘光洲,段东霞等.硫酸盐还原菌对铜镍合金腐蚀的影响[J].腐蚀与防护,2004,25(6):243~244)
[13]Liu J H,Liang X,Li S M.Corrosion action of sulfate-reducing bac-teria on two stainless steels[J].Acta Metall.Sin.,2005,41(5):545~550(刘建华,梁馨,李松梅.硫酸盐还原菌对两种不锈钢的腐蚀作用[J].金属学报,2005,41(5):545~550)
[14]Werner S E,et al.Pitting of type304stainless steel in the pres-ence of a biofilm containing sulphate reducing bacteria[J].Corros.Sci.,1998,40(2):465~480
[15]Booth G H,Tiller A K.Polarization studies of mild steel in sus-pensions of sulfate-reducing bacteria[J].Trans.Faraday Soc.,1960,56:1689~1696
[16]Liu G Z,et al.Studies on sulfate-reducing bacteria influenced corrosion of90/10Cu/Ni alloy[J].Electrochemistry,2002,8(2):191~194(刘光洲等.B10合金的硫酸盐还原菌腐蚀研究[J].电化学,2002,8(2):191~194)
[17]Rao T S,Aruna J K,et al.Pitting corrosion of titanium by a fresh-water strain of sulphate reducing bacteria(Desulfovibrio vulgaris)[J].Corros.Sci.,2005,47(5):1071~1084
[18]Gonzalez J E G,et al.Effect of bacterial biofilm on316SS corro-sion in natural seawater by EIS[J].Corros.Sci.,1998,40(12):2141~2154
[19]Pogrebova I S,et al.Mechaniam of inhibition of corrosion of steel in the presence of sulfate-reducing bacteria[J].Mater.Sci.,2001,37(5):754~761
[20]ZhangTS.Corrosion Inhibitor[M].Beijing:Chemical IndustryPress,2002(张天胜.缓蚀剂[M].北京:化学工业出版社,2002) |
| No Suggested Reading articles found! |
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
Cited |
|
|
|
|
| |
Shared |
|
|
|
|
| |
Discussed |
|
|
|
|
