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导电辊用铁基非晶及纳米晶涂层在NaOH,H_2SO_4和NaCl溶液中的腐蚀行为研究.docx

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导电辊用铁基非晶及纳米晶涂层在NaOH,H_2SO_4和NaCl溶液中的腐蚀行为研究 Title：CorrosionBehaviorofConductiveRollCoatedwithIron-BasedAmorphousandNanocrystallineCoatingsinNaOH,H2SO4,andNaClSolutions Introduction: Corrosionisasignificantconcerninmanyindustrialapplicationswheremetallicmaterialsareexposedtoaggressiveenvironments.Thecorrosiveattackcanleadtoincreaseddowntime,decreasedproductquality,andevenstructuralfailure.Developingeffectivecorrosionprotectionstrategiesisessentialtoenhancetheservicelifeofmetalliccomponents.Inthisstudy,weaimtoinvestigatethecorrosionbehaviorofaconductiverollcoatedwithiron-basedamorphousandnanocrystallinecoatingsinNaOH,H2SO4,andNaClsolutions.Understandingthecorrosionresistanceofthesecoatingsindifferentelectrolytesiscrucialforpotentialapplicationsinindustriesrequiringresistancetoalkaline,acidic,orsalineenvironments. ExperimentalMethodology: 1.PreparationofConductiveRoll: Theconductiverollusedinthisstudyismadeofametallicsubstrate.Itisthoroughlycleanedandpreparedbeforecoatingdepositiontoensureoptimumadhesionandcorrosionresistance. 2.CoatingDeposition: Theiron-basedamorphousandnanocrystallinecoatingsaredepositedontheconductiverollusingsuitabletechniquessuchasphysicalvapordeposition(PVD)orelectroplating.Thedepositionparametersareoptimizedtoobtaincoatingswithdesiredthicknessandmicrostructures. 3.Characterization: Thecoatedconductiverollischaracterizedusingvarioustechniquestoevaluatetheirmicrostructure,composition,andmechanicalproperties.TechniqueslikeX-raydiffraction(XRD),scanningelectronmicroscopy(SEM),transmissionelectronmicroscopy(TEM),andelectrochemicalmethodscanbeemployed. 4.CorrosionBehaviorEvaluation: Thecorrosionbehaviorofthecoatedconductiverollisinvestigatedbyconductingelectrochemicalmeasurements,includingpolarizationcurves,impedancespectroscopy,andopencircuitpotentialmeasurements,inNaOH,H2SO4,andNaClsolutions.Theelectrochemicaltestsareperformedatroomtemperatureusingastandardthree-electrodecellsetup. ResultsandDiscussion: 1.MicrostructureandCompositionAnalysis: Themic