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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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纳米CeO2改性渗Cr涂层在5%O2-0.1%SO2-N2气氛中的高温氧化
, PP. 43-46
Keywords: 高温氧化,渗Cr涂层,CeO2,SO2
Abstract:
用Ni-CeO2复合电镀后包埋渗Cr的方法在低碳钢上制备了CeO2改性的渗Cr涂层.在900℃、含与不含0.1%SO2的5%O2+N2气氛中，与低碳钢渗Cr及镀Ni渗Cr涂层的氧化行为进行了对比研究，获得如下结果（1）CeO2改性的渗Cr涂层抗高温氧化性能最好，低碳钢渗Cr涂层最差；（2）SO2促进了碳钢渗Cr及镀Ni渗Cr涂层的退化，而对CeO2改性渗Cr涂层的氧化影响不大.利用光学显微镜（OM）、X光衍射（XRD）、扫描电镜与能谱（SEM/EDAX）对氧化前后试样分析表明CeO2通过细化改性渗Cr涂层晶粒以及改变渗层Cr含量，避免氧化膜/涂层界面附近由于Cr的贫化而析出Ni2Cr相，延缓α相向γ相的快速转变，来提高氧化膜的抗剥落性能；同时，CeO2还通过改变涂层氧化膜的生长机制降低了SO2对涂层抗高温氧化性能的影响.
| [1] | XPeng,DPing,TLi,etal.OxidationBehaviorofaNi-La2O3CodepositedFilmonNickel[J]J.Electrochem.Soc,1998,145:389.
|
| [2] | XPeng,WWu,TLi.OxidationofaLa2O3-modifiedAluminideCoating[J]ScriptaMater,2001,44:1033.
|
| [3] | GJYurek,KPrzybylski,AJGarratt-Reed.SegregationofYtoGrainBoundariesinCr2O3andNiOScalesFormedonanODSAlloy[J]J .Electrochem.Soc,1987,134:2643
|
| [4] | JStringer.Corrosion,ErosionandErosion-CorrosionofIn-BedComponentsinFluidizedBedCombustion[J]Corrosion/86,paperNo.90(NationalAssociationofCorrosionEngineers,Houston,1986).
|
| [5] | XPeng,KLiu,W -PPan,etal.High-TemperatureCorrosionofA210-CCarbonSteelinStimulatedCoal-CombustionAtmospheres[J]Oxid.Met,2003,60:117.
|
| [6] | MTKim,NHHeo,JHShin,etal.SimultaneousChromizingandAluminizingUsingChromiumOxideandAluminum:(I)onLowAlloySteel[J]Surf.Coat.Technol,2000,123:227.
|
| [7] | RGILeferink,WMHuijbregts.ChromiumDiffusionCoatingsfortheProtectionofLow-AlloySteelinaSulphidizing-Atmosphere[J]Corros.Sci,1993,35:1235.
|
| [8] | MZheng,RARapp.StimultaneousAluminizingandChromizingofSteelstoForm(Fe,Cr)3AlCoatings[J]Oxid.Met,1998,49:19.
|
| [9] | RBianco,RARapp.PackCementationAluminideCoatingsonSuperalloys:CodepositionofCrandReactiveElements[J]J .Electrochem.Soc,1993,140:1181.
|
| [10] | JKipkemoi,DTsipas.Rare-earthModifiedChromium-AluminideCoatingsAppliedbyPackCementationMethodonLow-alloySteels[J]J.Mater.Sci,1996,631:6247.
|
| [11] | LZhu,XPeng,JYanetal.OxidationofaNovelChromizingCoatingwithCeO2Dispersion[J]Oxid.Met,2004,60:411.
|
| [12] | CSTedmon.TheHigh-temperatureOxidationofFe-CrAlloysintheCompositionRangeof25-95wt.%Cr[J]J .Electrochem.Soc,1967,114:788.
|
| [13] | THodgkiess,GCWood,DPWhittle.TheOxidationofNi-70mass.%CrinOxygenbetween1073and1473K[J]Oxid.Met,1980,14:263.
|
| [14] | GRomeo,HSSpacil,WJPasko.TheTransportofChromiuminCr2O3ScalesinSulfidizingEnvironments[J]J.Electrochem.Soc,1975,122:1329.
|
| [15] | BAPint.ExperimentalObservationinSupportoftheDynamic-SegregationTheorytoExplaintheReactive-ElementEffect[J]Oxid.Met,1996,45:1.
|
| [16] | CMCotell,GJYurek,RJHussey,etal.TheInfluenceofGrain-BoundarySegregationofYinCr2O3ontheOxidationofCrMetal[J]Oxid.Met,1990,34:173.
|
| [17] | SChevalier,JPLarpin.FormationofPerovskiteTypePhasesduringtheHightemperatureOxidationofStainlessSteelsCoatedwithReactiveElementOxides[J]ActaMater,2002,50:3105.
|
| [18] | IKKoshelev,APPaulikas.InfluenceofaReactiveElementontheGrowthofaThermallyGrownChromiaScale:AGrazingEmissionX -rayFluorescenceStudy[J]Oxid.Met,2003,59:469.
|
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