Microstructure evolution modeling of FGH96.pdf

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1、FiniteElementsinAnalysisandDesign80(2014)63–68ContentslistsavailableatScienceDirectFiniteElementsinAnalysisandDesignjournalhomepage:www.elsevier.com/locate/finelMicrostructureevolutionmodelingofFGH96superalloyduringinertiafrictionweldingprocessnLongfeiNie,

2、LiwenZhang,ZhiZhu,WeiXuSchoolofMaterialsScienceandEngineering,DalianUniversityofTechnology,Dalian116024,PRChinaarticleinfoabstractArticlehistory:InordertoinvestigatethemicrostructureevolutionofinertiafrictionweldingprocessofFGH96ringpart,Received28May2013

3、thedynamicrecrystallizationkineticmodelofFGH96superalloywasestablishedandatwo-dimensionalReceivedinrevisedformaxisymmetriccoupledthermo-mechanicalfiniteelementmodelwasdevelopedusingtheMSC.Marc9October2013software.BytheseconddevelopmentofMSC.Marc,thedynamic

4、recrystallizationkineticmodelwasAccepted21October2013integratedintothefiniteelementmodeltosimulatethemicrostructureevolutionofinertiafrictionAvailableonline16November2013weldingprocessofFGH96superalloy.Thedistributionsofdynamicrecrystallizedfractionandaver

5、ageKeywords:grainsizeduringtheinertiafrictionweldingprocesswereobtainedandanalyzed.TheinertiafrictionFGH96superalloyweldingexperimentsofFGH96ringpartswerecarriedout.ThecomparisonresultsshowthattheInertiafrictionweldingsimulatedresultsagreewellwiththemeasu

6、redones.Microstructureevolution&2013ElsevierB.V.Allrightsreserved.Finiteelementmethod1.Introductionpredeterminedrotationalspeedandthendisengagedfromthedriveunit.Finally,theworkpiecesareforcedintoajointunderAsuperalloyisakindofaeronauticalmetallicmaterialw

7、hichapplicationofaxialpressure[4].Asanefficiencyandenergy-savingwasdevelopedsince1940s.Itisappliedforhigh-temperatureweldingtechnology,IFWhasbecomethedominantandstandardapplicationsinaerospaceindustriesduetoitshighstrengthatmethodtoproducehigh-performancea

8、eroengineturbinediscsandelevatedtemperature(600–11001C)andhighresistancetocreepotherrotatingparts.andoxidation[1].FGH96isakindofprecipitationstrengtheningDuringIFWprocess,mostofthekineticenergystoredinthesuperalloy.