预览加载中，请您耐心等待几秒...

含准晶相Al－Cu－Fe合金的球磨非晶化研究.docx

预览
1/2
2/2

在线预览结束，喜欢就下载吧，查找使用更方便

下载提示 文本预览

如果您无法下载资料，请参考说明：

1、部分资料下载需要金币，请确保您的账户上有足够的金币

2、已购买过的文档，再次下载不重复扣费

3、资料包下载后请先用软件解压，在使用对应软件打开

含准晶相Al－Cu－Fe合金的球磨非晶化研究 Title:StudyontheMechanicalMillingAmorphizationofAl-Cu-FeAlloyContainingQuasicrystallinePhase Abstract: Al-Cu-Fealloyshaveattractedsignificantattentionduetotheuniquecombinationofmechanicalproperties,includinghighstrength,excellentthermalstability,andcorrosionresistance.Inthisstudy,theeffectsofmechanicalmillingontheformationofamorphousstructureinAl-Cu-Fealloyscontainingquasicrystallinephasewereinvestigated.Ballmillingwasusedasthemethodtoinducemechanicalalloying,andtheresultingmicrostructuresandpropertieswerecharacterizedusingvarioustechniques,includingX-raydiffraction(XRD),transmissionelectronmicroscopy(TEM),anddifferentialscanningcalorimetry(DSC).Therelationshipbetweenmillingtime,millingspeed,andtheevolutionoftheamorphousphasewasanalyzedindetail.TheresultsdemonstratethepotentialofmechanicalmillingasaviableapproachforthesynthesisofamorphousAl-Cu-Fealloysandtheenhancementoftheirmechanicalproperties. 1.Introduction: Amorphousalloys,alsoknownasmetallicglasses,haveattractedsignificantattentioninrecentyearsduetotheiruniquecombinationofmechanical,thermal,andmagneticproperties.Mechanicalmilling,orballmilling,isoneofthemostcommonlyusedmethodsforsynthesizingamorphousalloys.Duringthemillingprocess,themechanicalenergyappliedtothealloypowderleadstoahighdensityofdefectsandatomicrearrangements,resultingintheformationofadisorderedatomicstructure.Thisamorphousstructurecanofferuniqueproperties,suchashighstrength,improvedcorrosionresistance,andenhancedwearresistance. 2.ExperimentalProcedure: TheAl-Cu-Fealloysampleswerepreparedbyaconventionalmeltingandcastingmethod.ThealloycompositionconsistedofAl65Cu20Fe15(at.%).Theas-castsampleswerethenmechanicallymilledusingahigh-energyballmillingmachine.Themillingparameters,includingtimeandspeed,werevariedtounderstandtheirinfluenceontheformationoftheamorphousstructure.ThemilledpowderswerecharacterizedusingXRD,TEM,andDSCtoanalyzetheirstructuralandthermalproperties. 3.ResultsandDiscussion: TheXRDanalysisrevealedadecreaseintheint