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医用镁合金微弧氧化表面改性研究 Title:SurfaceModificationofMedicalMagnesiumAlloysbyMicroarcOxidation:AResearchReview Abstract: Theapplicationsofmagnesiumalloysinmedicalimplantshavegainedsignificantattentioninrecentyearsduetotheirexcellentbiocompatibilityandsuitablemechanicalproperties.However,theinherenthighcorrosionrateandpoorwearresistanceofmagnesiumalloyslimittheiruseinbiomedicaldevices.Toaddressthesechallenges,surfacemodificationtechniques,suchasmicroarcoxidation(MAO),havebeenextensivelystudiedtoenhancethecorrosionresistanceandimprovethewearbehaviorofmagnesiumalloys.ThisreviewfocusesontheresearchprogressinthesurfacemodificationofmedicalmagnesiumalloysusingtheMAOprocess.ThekeyfindingsandapproachestoimprovetheperformanceandbiocompatibilityofMAO-treatedmagnesiumalloysarediscussed.Furthermore,thefutureperspectivesandchallengesinthefieldofMAOsurfacemodificationformedicalmagnesiumalloysarealsoidentified. 1.Introduction 1.1Background 1.2Aimofthestudy 2.MicroarcOxidationProcess 2.1PrincipleofMAO 2.2ProcessParameters 2.3CharacterizationTechniques 3.SurfaceModificationofMedicalMagnesiumAlloys 3.1EnhancementofCorrosionResistance 3.1.1FormationofProtectiveOxideLayers 3.1.2AlloyingElementAdditions 3.2ImprovementinWearResistance 3.2.1FormationofCeramicCoatings 3.2.2CompositeCoatings 4.BiocompatibilityEvaluationofMAO-TreatedMagnesiumAlloys 4.1CytotoxicityandCellViabilityStudies 4.2InVitroCorrosionTests 4.3InVivoStudies 5.StrategiesforEnhancedPerformanceofMAO-TreatedMagnesiumAlloys 5.1SurfaceModificationApproaches 5.2Post-MAOTreatments 5.3SurfaceCoatingTechniques 6.FuturePerspectivesandChallenges 6.1EmergingTrends 6.2TechnicalChallenges 6.3RegulatoryConsiderations 7.Conclusion 7.1SummaryofFindings 7.2ImplicationsforFurtherResearch References Thisresearchpaperaimstoprovideanoverviewofthesurfacemodificationofmedicalmagnesiumalloysusingthemicroarcoxidation(MAO)technique.ItwilldiscusstheprinciplesofMAO,processparameters,andcharacterizationtechniquesemployed.Thepaperwillalsodelveintothevariousstrat