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7XXX铝合金搅拌摩擦焊焊接接头组织与性能研究 Title:AStudyontheMicrostructureandPropertiesof7XXXAluminumAlloyStirFrictionWeldedJoints Abstract: Thispaperinvestigatesthemicrostructureandpropertiesof7XXXaluminumalloystirfrictionweldedjoints.Stirfrictionwelding(SFW)isasolid-statejoiningprocessthatoffersseveraladvantagesoverconventionalfusionweldingmethods,includingenhancedjointstrengthandreduceddistortion.The7XXXaluminumalloyexhibitsexcellentmechanicalproperties,highstrength,andgoodcorrosionresistance,makingitsuitableforvariousapplications.Inthisstudy,themicrostructure,mechanicalproperties,andcorrosionbehaviorofthestirfrictionweldedjointsareevaluatedtoprovideinsightsintoitspotentialapplicationsindifferentindustries. 1.Introduction: 1.1Background 1.2Objective 2.LiteratureReview: 2.1StirFrictionWelding 2.2AluminumAlloysandTheirWelding 3.ExperimentalMethodology: 3.1MaterialPreparation 3.2StirFrictionWeldingProcedure 3.3CharacterizationTechniques 4.ResultsandDiscussion: 4.1MicrostructuralAnalysis 4.2MechanicalPropertiesEvaluation 4.3CorrosionBehaviorAssessment 5.Conclusion: 5.1Summary 5.2ImpactandFutureScope 1.Introduction: 1.1Background 7XXXaluminumalloysarewidelyusedintheaerospaceandtransportationindustriesduetotheirexcellentstrength-to-weightratioandcorrosionresistanceproperties.Traditionally,fusionweldingmethodshavebeenusedforjoiningthesealloys.However,thesetechniquesoftenresultinissuessuchasdistortion,reducedmechanicalproperties,andlocalizedheat-affectedzone(HAZ)corrosion.Stirfrictionwelding(SFW)offersapromisingalternativeforjoining7XXXaluminumalloysasitisasolid-statejoiningprocessthatavoidstheproblemsassociatedwithfusionwelding. 1.2Objective Theobjectiveofthisstudyistoinvestigatethemicrostructureandmechanicalpropertiesofstirfrictionweldedjointsin7XXXaluminumalloys.Specifically,thepaperfocusesonevaluatingtheweldzone'smicrostructure,mechanicalstrength,andcorrosionbehavior.Byunderstandingthemicrostructuralchangesandmechanicalproperties,thepotentialapplicationsofthestirfrictionweldedjointscan