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极片颗粒轧制过程的数值模拟与试验研究（英文）.docx

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极片颗粒轧制过程的数值模拟与试验研究（英文） Title:NumericalSimulationandExperimentalStudyofGrainRefinementinUltra-fineParticleRollingProcess Abstract: Thefieldofmetalforminghaswitnessedsignificantadvancementsinrecentyears,drivenbytheincreasingdemandformaterialswithsuperiorpropertiesandenhancedfunctionality.Amongthevariousmetalformingtechniques,grainrefinementthroughparticlerollinghasgainedconsiderableattentionduetoitsabilitytoproduceultra-finegrainedmaterialswithimprovedmechanicalandphysicalproperties.Thisstudyaimstoinvestigatethegrainrefinementprocessinparticlerollingthroughbothnumericalsimulationsandexperimentalstudies. 1.Introduction: Thissectionprovidesanoverviewofthesignificanceofgrainrefinementinmetalformingandintroducestheparticlerollingtechniqueasaneffectivemethodforachievingultra-finegrainedmaterials.Theresearchobjective,methodology,andorganizationofthepaperarealsooutlined. 2.LiteratureReview: Acomprehensivereviewoftheexistingliteratureonparticlerollingandgrainrefinementispresentedinthissection.Theoreticalmodels,numericalsimulations,andexperimentalstudiesconductedinthepastarecriticallyanalyzedtounderstandthekeyfactorsaffectingthegrainrefinementprocess. 3.ExperimentalSetup: Theexperimentalsetupusedtoinvestigatethegrainrefinementprocessinparticlerollingisdescribedindetail,includingthematerials,equipment,andtestparameters.Therollingprocessparameters,suchastherollingspeed,rollingforce,andparticlesize,arecarefullyselectedbasedontheoreticalconsiderationsandpreliminaryexperiments. 4.NumericalSimulation: Anumericalsimulationmodelbasedonfiniteelementanalysisisdevelopedtosimulatethegrainrefinementprocessduringparticlerolling.Themodeltakesintoaccountvariousfactors,includinginitialgrainsize,particlesize,rollingspeed,androllingforce.Thesimulationresultsarecomparedwithexperimentaldatatovalidatethemodel'saccuracyandreliability. 5.ExperimentalResultsandAnalysis: Theexperimentalresultsobtainedfromthegrainrefinementprocessinparticlerollingarepresentedandanalyzedinthissection.Themicrostructuralev