用响应面法优化搅拌铸造镁基复合材料的搅拌参数（英文）.docx

用响应面法优化搅拌铸造镁基复合材料的搅拌参数（英文）
OptimizationofStirringParametersforStirCastingofMagnesium-basedCompositeMaterialsusingResponseSurfaceMethodology
1.Introduction
Magnesium-basedcompositeshaveattractedsignificantattentioninrecentyearsduetotheirexceptionalpropertiessuchaslowdensity,highspecificstrength,andgoodthermalconductivity.Thestircastingprocessiscommonlyusedtofabricatethesecompositesasitprovidesacost-effectivemethodforobtainingauniformdistributionofreinforcementmaterialswithinthematrix.However,theselectionofappropriatestirringparametersiscrucialtoensurethedesiredcompositeproperties.Inthisstudy,responsesurfacemethodology(RSM)willbeemployedtooptimizethestirringparametersforstircastingofmagnesium-basedcompositematerials.
2.ExperimentalProcedure
2.1Materials
Thematerialsusedinthisstudyincludemagnesiumasthematrixmaterialandvariousreinforcingmaterialssuchasceramicparticlesorfibers.
2.2StirCastingProcess
Thestircastingprocessinvolvesthemeltingofthemagnesiummatrixmaterialfollowedbytheadditionofthereinforcingmaterials.Thestirringparameters,suchasstirringspeed,stirringtime,andstirrergeometry,playavitalroleinachievingahomogeneousdistributionofthereinforcementandpreventingagglomeration.
2.3DesignofExperiments
Acentralcompositedesign(CCD)willbeusedtoplantheexperimentsrequiredforoptimization.TheCCDinvolvesacombinationoffactorial,axial,andcenterpointteststodeterminetherelationshipbetweentheprocessvariablesandtheresponsevariables.Theresponsevariablesinthisstudywillincludethemechanicalpropertiesandmicrostructureoftheobtainedcompositematerials.
3.OptimizationusingResponseSurfaceMethodology
Theresponsevariableswillbeanalyzedusingregressionanalysistodevelopmathematicalmodels.Themodelswillbeusedtogenerateresponsesurfacesthatdepicttherelationshipbetweenthestirringparametersandtheresponsevariables.Themodelscanthenbeoptimizedtoidentifythecombinationofstirringparametersthatyieldthedesiredcompositeproperties.
4.ResultsandDiscussion
Theobtainedcompositematerialswillbecharacterizedusingvarioustec