镁合金AZ91D分层电镀镍工艺

镁合金AZ91D分层电镀镍工艺Title: Electroplating Process for Nickel Layer on AZ91D Magnesium AlloyAbstract:Magne

AZ91D 镁合金分层电镀镍工艺 Title:ElectroplatingProcessforNickelLayeronAZ91D MagnesiumAlloy Abstract: Magnesiumalloysarebecomingincreasinglypopularin variousindustriesduetotheirexcellentphysicalandmechanical properties.However,theirpoorcorrosionresistancelimitstheir applicationsinaggressiveenvironments.Toimprovethecorrosion resistanceandenhancethedurabilityofmagnesiumalloys, differentsurfacemodificationtechniques,suchaselectroplating, havebeenexplored.Thispaperfocusesontheelectroplating processforthedepositionofanickellayeronAZ91Dmagnesium alloy,aimingtoenhanceitscorrosionresistanceandprovidea protectivecoatingforvariousapplications. 1.Introduction 1.1Background 1.2ResearchObjective 2.AZ91DMagnesiumAlloy 2.1CompositionandProperties 2.2CorrosionBehavior 3.ElectroplatingProcess 3.1BasicPrinciples 3.2Pre-treatmentofAZ91DSubstrate 3.3ElectroplatingBathFormulation 3.4ElectroplatingParameters 3.5Post-Treatment 4.NickelElectrodepositionMechanismonAZ91D 4.1NucleationandGrowth 4.2AdhesionandFilmProperties 5.CharacterizationTechniques