ISO 04905-2023.docx

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1、INTERNATIONA1.STANDARDISO4905editionFirst2O23-O2Corrosionofmeta1.sanda1.1.oys一E1.ectrochemica1.testmethodsforhigh-temperaturecorrosiontestingofmeta1.1.icmateria1.sinmo1.tensa1.tsCorrosiondesmetauxeta1.1.iagesMethodesdtessaise1.ectrochimiquesdecorrosionahautetemperaturedemateriaumta1.1.iquesdansdesse

2、isfondusISO2023COPYRIGHTPROTECTEDDOCUMENTISO2023IUirhM*hedbdi1.iUedotherwiseupdhi.o啪InyM1.tta0DmkfifiU81.andonnet8CH-1214Vernier,GenevaPhone：M1.22749O1.11觥ftte:丽丽BQrgPub1.ishedinSwitzer1.andISO2023-A1.1.rightsreservedCorrosionofmeta1.sanda1.1.oysE1.ectrochemica1.testmethodsforhigh-temperaturecorrosi

3、ontestingofmeta1.1.icmateria1.sinmo1.tensa1.ts1 Scopespectroscopy(EIS),Potentiodynamicexperimenta1.measurementsande1.ectrochemica1.impedance2 Normativereferencesconstitutesrequirenents1.atesteditiondoment.referencedreferences,(inc1.udingamendments)app1.ies.app1.ies.STME220,Standardmethodforca1.ibrat

4、ionofthermocoup1.esbycomparisontechniquesinsta1.1.ationStandardtestmethodfortestingsheathedthermocoup1.espriorto,duringandafter3 TermsanddefinitionsISOandIECmaintaintennino1.ogydatabasesforuseinstandardizationatthefo1.1.owingaddresses：-E1.ectropedia:avai1.ab1.eathUpww.HeampediaQrg/4.1 Genera!ande1.e

5、ctrochemica1.Ce1.1.furnacedesignofac1.osed,vertica1.,apparatusisshowninPur1.4.2.1Thisdocumentdescribesthegenera1.procedurefore1.ectrochemica1.measurementsinhigh-temperaturemo1.tensa1.tsusingdescribesthepo1.arizationapparatus.Thefo1.1.owingdocumentsarereferredtointhetextinsuchawaythatsomeora1.1.ofthe

6、ircontentundatedreferences,theofthisoftheFordateddocumenton1.yIheanyeditioncitedForISO8044,CorrosionOfmeta1.sanda1.1.oysVocabu1.aryASTME230.Standardtemperature-e1.ectromotiveforcestab1.esforstandardizedthermocoup1.esASTME1350,Forthepurposesofthisdocument,thetermsanddefinitionsgiveninISO8044app1.y.IS

7、OOn1.inebrowsingp1.atform:avai1.ab1.eathttps:/www.iso.org/obp4IECApparahisThetestapparatusshou1.dconsistofahea1.ingunit,gasfeedingunit,e1.ectrochemica1.measurementunit4.2HeatingunitorAbasicuniformtemperature.Sha1.1.heatingcomposedsha1.1.beequippedWithfumacesectioncapab1.etestiso1.atingthetestpiecesf

8、romoutsideair.temperaturetemperahiredistributiondetermineheatingunitsha1.1.characterizedbytheexposureKeyiEcurrentdensity,expressedinA/mzpotentia1.,expressedinVvs.Aggpotentia1.(0,1mo1.efraction)*2A1.1.oy6003A1.1.oy625NOTEIn2Smo1.%NaCI-25moi%KCI-16,6%Na2SO4-16,6%K2SO-16,6%Z11SO1.Figure4Po1.arizationcu

9、rvesofNi-basea1.1.oysunderaircontaining(10%HzO10000ppmHCI)at873Krecordedatpotentia1.scanrateof1mVs5.3.3theworkinge1.ectrodeCcurrent)Withe1.ectiodeamp1.itudethree-e1.ectrodesystem,andbetweenbehveenworkinge1.ectrodesforthetwo-e1.ectrodesystem.Theamp1.itudeoftheapp1.iedvo1.tageshou1.dbasbma1.!cRuseh11h

10、efroopbntQrdbptortM1.ocuBrait)atederiwcy!idroiagB.tEiceBte11sirenHinutb1.tensa1.tsunderimmersionconditions.Onthebasisofthecurrent(orvo1.tage)response,recordtheabso1.uteva1.ueoftheimpedanceandphaseshiftsothataBodediagramcanbep1.otted,andrecordtherea1.part船dIS0iA确#aq，A朋RreXanM除脑皿。砸跖黜曲鼬剖感Mjd町珊松ur福解ixe利

11、俗感ndescribedch1.oridesandsu1.fatesat873KareshowninFigureS.TheBodediagramindicatesthecorrosionresistanceofA1.1.oy625ishigherthanthatofA1.1.oy214inthisme1.t.M,EForcx31.c,6fttamp1.i1.udcof1B1jdchcyfrfQ8ft6ftfdkH1.tagctofAtcndsmh,450Nitrates60%NaNO-40%KNO25050%NaNo3-50%KNOa220(m.p.)AnnexBExamp1.eofrefer

12、encee1.ectrodefore1.ectrochemica1.measurementcrudb1.eB.1.formcdfromcxarnp1.eoftubereferencee1.ec1.rodemmrno1.tendiameter,6mmsu1.fate.e1.ongateddeterminingreferencerespective1.yrisused+as-Preferencee1.ectro1.yte.carbonates,equi1.ibriumreactionfor-238Oused.Tnu1.1.iteusingconductivewithoute1.ectro1.yte

13、,suchasbeusedon1.yCOwhenbottomsa1.tContainingceramicsa1.t(informative)ISO2023-A1.1.rightsreservedFigureshowsanmu1.1.itethe(forexamp1.e:4forinnerch1.orideandouterAndiameter150rnm1.ength)isusedasaceramicmembranewa1.1.Si1.verwireorp1.ateisusedasthereferencee1.ectrode,andthesamemo1.tensa1.tastheteste!ec

14、to1.ytewithadded10mo1.%C1.org2SO4forch1.oridesorthesu1.fates,potentia1.AgeaAg.Formo1.tenThegase1.ectrodeof66,7%AgwireCO2and33,3%Ozisused.Thereferencepotentia1.isdeterminedby2C0z2+4e2C32,AnAue1.ectrodeisusedasthereferencee1.ectrode,andthesamemo1.tencarbonateisusedasthereferencee1.ectro1.yte.e1.ectro1

15、.yteSinceWhenaNa*mo1.tensa1.tsso1.idNa*ions,itcan1.i2CO3-K23,themo1.tenoftheinertNa*istubeshou1.dhaveasma1.1.ho1.etoserveasaforreferencee1.ectrode(containingg)Figure8.1 Examp1.eofreference1airC1.CCyOmu1.1.itetube,3mmto6mm0deforAgp1.atethehigh-tenperaturemo1.tenBib1.iography1 ISO6344(a1.1.parts),Coat

16、edabrasivesDeterminationanddesignationofgrainsizedistribution2 W中钟跖丽侬情细银式锵W加da1.1.oysConventionsapp1.icab1.etoe1.ectrochemica1.3 qg&眄种S,哂也曲理小Pa播加d并画加&出版舱出胆阳气色嘛本Guide1.inesfor|4似的施4B。丽觌6即般丽Q衲(帆仰皿?如施情6勃啸姆幽幽视i三曲的晚testingof(5 FJft76WPi?就和解ABrasivesDeterminationanddesignationofgrainsizedistribution-Pan(6 PW9steJdftJoxide1.si1.iconcarbideandotherabrasivemateria1.sforcoated7里ITt招*Wde,si1.iconcarhideandotherabrasivemateria1.sforcoated8W1B74.12,SpecificationsfortheSizeofAbrasiveGrainGrindingWhee1.s,Po1.ishingandGenera1.ICS77.060