电化学保护技术及其应用第十讲阳极保护的现状及前景

专题讲座(200030)1,1.1,,,,,,,40%,,,FeNiCrMoAlTiTaNb,,,,,,,,,0.52.0V[1]1.2,,,,,,,,11,,,AB,,,BC(B),,,,CDC,(),,CD,DFD,,,(),,:(1)致钝电流密度(ipp)　ipp,5692112200012CORROSION&PROTECTIONVol.21No.12December2000ipp,;ipp,,,,,,,,(2)维钝电流密度(ip)　ip,,ip,(1mm/a)(pH),,H2SO4,ip770mA/m2,ip1mA/m2[1](3)钝化区电位范围　,50mV,,,,2,,222.1,,,,,1s3060min,,,,,,1020V,2500A[2]2.2,,,,,,,,,30%,,,,,,1,,,,570:1[3]1Cr18Ni10TiCr28Ni4Mo2Ti2.3,:(1);(2),,;(3),,;(4),,,(2)2[3]Mo/MoO3Ag/AgClPtBi316Hg/HgSO4NiPt/PtOSiAu/AuOPb350[4],60,,,3,3[5]()(),,,,[6],:,,44.1,,;,,,,4,SO23,(),316L60C93%110C99%,5.0810.16mm/a;25.4Lm/a[2],571:412Cr18Ni10Ti100120C70%90%H2SO4[7]H2SO4%C,mm/aV(SCE)12Cr18Ni10Ti701001050.040.40.070.5701204600.20.590120190.80.6901008--76100-0.070.47010020--7012042--9010054--90120175--34.2,:400m3,6.8m,8.4m,5cm;63m3,8.9m,3m,4cm0.7g/m2h,6.5mg/m2h,1/100[2]90%94%,-0.4V(),,,0.7V,(90%94%),0.70.9V,10mA/m2,0.007mm/a,,3m,30cm,,6.1m,,3,1206015cm,,,4.3,18m,2.2m,80,20,1760,350m2,40C,7kg/cm2,7mm/a,36,CO2(4),-300+850mV(),(ipp)12A/m2,(ip)5060mA/m2,0.0350.042mm/a[2],,,S2-S,1A/m2,4CO2NH3,48A/m2,,,(549)572:,,,1[].WV..:,1987.2,..(),1998.3.,.:,1990.4DavidH,Kroon.CathodicProtectionAnodesUnderground,MaterialsPerformance989,28(1):5..:,1999.1216CochranJ,BassJT.Computeranalysis/optimizationofanodegeometriesforcongestedanodearrays.Corrsoion/86(NACE),Houston,1986,477CatohdicProtection-Theoryandproactice,editorsbyAshworthV,BookerCJL.London:EllisHorwoodLimited,1986,318DillonCP.MaterialsPerformance,1989,28(1):679..:,1998.18910..:,1997.11..,1993,26(1):12..,1995,24(5):13..,1995,(1):14..:,1997.15AmayaK,AokiS.OptimumDesignofCathodicProtectionSystemby3-DBEMinBoundaryElmentTechotologyV11,eds.C.A.Brebbia,M.S.ingber(London,England:ComputationMechanicsPublications1992),37516BrichauF,DeconinckJ.ANumericalModelForCathodicProtectionofBuriedPipes.Corrosion,1994,50(1):17..,1999,11(2):18,,..,1999,11(3):19,..,1998,10(2)::2000-02-28(572),400600A/812V2500A/12V,200A,0+2V4.4,,177C,792kPa,;,,,(4000A),2700A,12min;,600A0.96mm/a,1.65mm/a;0.06mm/a0.07mm/a,1..:,1989.2..:,1988.3RiggsOL,LockeCE.AnodicProtection:TheoryandPracticeinthePreventionofCorrsoion,Plenum,NewYork,1981:504EdeleanuC.Metallurgia.1954,50:1135DennyA,Jones.PrinciplesandPreventionofCorrosion,Secondedition,1996.6´±ÆÀ¿À³±.Ž±¼±ÂÀ³ƒÁ‰±ÊºÄ±Ž¶Ä±½½À³,1989,25:5317ŒÅ¹Å²ƒ“.¿Àµ¿±Ñ‰±ÊºÄ±Ž¶Ä±½½À³ÀČÀÂÂÀ¹ººŽÀü³±,—º¾ºÑ,1983.549: