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| INFLUENCE OF ENVIRONMENTAL FACTORS IN YULIN AREA OFTHE SOUTH CHINA SEA ON LOCALIZED CORROSION OF STEELS |
| Dayang Liu;Kaijin Wei;Wenjun Li |
| 洛阳船舶材料研究所 |
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Cite this article:
Dayang Liu; Kaijin Wei; Wenjun Li. INFLUENCE OF ENVIRONMENTAL FACTORS IN YULIN AREA OFTHE SOUTH CHINA SEA ON LOCALIZED CORROSION OF STEELS. J Chin Soc Corr Pro, 2003, 23(4): 211-216 .
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Abstract The severe localized corrosion of steels in Yulin a r ea of the South China Sea was analyzed by the use of macroscopic testing of seaw ater corrosion of typical steels induced by marine organisms,testing of major co rrosive bacteria and FeS in the rust layer on steel specimens and testing of cal cium deposits in the rust layer on steel specimens.The results reveal that the m arine organisms grow vigorously all year round due to rather high temperature of seawater in this area and result in uneven fouling to the surface of steel speci mens,which increases the electrochemical heterogeneity of the surface of steel s pecimens,the amounts of several aerobic bacteria and anaerobic SRB in the rust l ayer on steel specimens exposed in Yulin testing station are several times to th ree orders of magnitude larger than those on steel specimens exposed in Qingdao testing station,where the temperature of seawater is lower,and show collective d istribution;the content of FeS in the corrosion product on steel specimens expo sed in Yulin testing station is 0.1 times to twice higher than that of steel spe cimens exposed in Qingdao testing station.High Content of FeS and severe localiz ed corrosion induced by bacteria are two important factors for aggravation of lo calized corrosion of steels in Yulin area of the South China Sea.
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Received: 19 August 2002
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[1]SchumacherM .SeawaterCorrosionHandbook[M ].Beijing:Nation alDefenceIndustryPress.1985,4:547-580([美]M .舒马赫编,李大超,杨荫等译.海水腐蚀手册[M ].北京:国防工业出版社,1985,4:547-580)
[2]WagnerP ,LittleB .Impactofalloyingonmicrobiologicallyinflu encedcorrosion-areview[J].MaterialsPerformance,September1993:65-68
[3]LeeTS ,etal.Theeffectofenvironmentalvariablesoncrevicecor rosionofstainlesssteelinseawater[J].MaterialsPerformance,July1984:9-15
[4]NevilleA ,etal.Surfacescalesinseawatersystems:effectsoftheirformationoncorrosionbehaviorofengineeringsteels[J].Br.Cor ros.J.,1997,32(4):279
[5]HuangSG ,etal.Influenceofmarinefoulingorganismsoncorrosionofsomematerials[A].Proceedingsof1979SymposiumonCorro sionandProtection(PartofSeawater,IndustrialWaterandBiologi calCorrosion)[C].Beijing:TheAcademicPress,1982,10:370-375(黄尚高等.海洋附着生物对某些材料腐蚀的影响[A].1979年腐蚀与防护学术报告会议论文集(海水、工业水和生物部分)[C].北京:科学出版社,1982,10:370-375)
[6]TheCompilingCommitteeofChinaSocietyforCorrosionandPro tectionforMetalCorrosionHandbook.MetalCorrosionHandbook[M].Shanghai:ShanghaiAcademicPress,1987,6:119(中国腐蚀与防护学会《金属腐蚀手册》编委会编.金属腐蚀手册[M].上海:上海科学出版社,1987,6:119) |
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