Corrosion behavior of low-alloy steel containing 1% chromium in CO2 environments.pdf

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1、CorrosionScience75(2013)400–408ContentslistsavailableatSciVerseScienceDirectCorrosionSciencejournalhomepage:www.elsevier.com/locate/corsciCorrosionbehavioroflow-alloysteelcontaining1%chromiuminCO2environmentsa,bb,⇑bbQianlinWu,ZhonghuaZhang,XiaomingDong,JianqiangYangaInstituteof

2、MarineMaterialsScienceandEngineering,ShanghaiMaritimeUniversity,Shanghai201306,ChinabBaosteelResearchInstitute,BaoshanIronandSteelCo.,Shanghai201900,ChinaarticleinfoabstractArticlehistory:Corrosionbehavioroflow-alloysteelcontaining1%Cr(1Cr)withnormalized(ferritic–pearlitic)andR

3、eceived17March2013quenched-and-tempered(temperedmartensitic)microstructureswasinvestigatedinCO2environmentsAccepted18June2013at60°C.TheseverelocalizedcorrosionwhichwasobservedinN80carbonsteel,didnotexistfor1CrsteelAvailableonline26June2013duetotheformationofacompactandself-repa

4、irableCr-richscale.For1Crsteel,thecorrosionresistancewithferritic–pearliticmicrostructurewasbetterthanthatwithtemperedmartensiticmicrostructure.AnKeywords:apparentcorrosionscalespallationwasobservedonthesurfaceofquenched-and-tempered1Crsteel,A.Lowalloysteelwhileonlyslightscales

5、pallationwasseenfornormalized1Crsteel.B.WeightlossÓ2013ElsevierLtd.Allrightsreserved.B.SEMC.Pittingcorrosion1.Introductioncorrosion.Nowthequestionarises,couldwemakecommonlyused1wt.%CrsteelavoidlocalizedcorrosionbytheadditionofsmallIntheoilindustry,low-gradecarbonsteelN80andlow-

6、alloyamountofalloyelementstogetherwiththestructuremodificationsteelcontaining1%chromium(1Cr)representthemostcommonlybysuitableheat-treatment.usedconstructiontubingmaterialsforoilwell[1–3].AsoneoftheCorrosionbehaviorofsteelsinCO2environmentsdepends,toamostpromisingtechniquesformo

7、dernoilproduction,CO2-en-greatextent,onthematerial(alloycompositionandheat-treat-hancedoilrecovery(EOR)attractsmoreattentionsinrecentyearsment/microstructure)andtheenvironmentalconditions(tempera-owingtoitspositivecontributiontogeologicalstorageofcarbonture,CO2partialpressure,p

8、H,solutionchemistry,flow,corrosion[4].Theresistanceofst