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1、JOURNALOFMATERIALSSCIENCE27(1992)4545-4566ReviewMicrotexturedeterminationbyelectronback-scatterdiffractionD.J.DINGLEY,V.RANDLEH.H.WillsPhysicsLaboratory,UniversityofBristol,TyndaflAvenue,BristolBS81TL,UKThisreviewdescribestheuseofanexperimentaltechniqueknownasel
2、ectronback-scatterdiffraction(EBSD)tomeasuremicrotexture,thatis,spatiallyspecifictexturemeasuredonanindividualorientationbasis.OthermethodsofmicrotexturedeterminationarebrieflydescribedandcomparedwithEBSD.TheEBSDtechniqueitselfisdescribedinconsiderabledetailincl
3、udingrecentdevelopmentssuchason-lineautomation.ThoseEBSD-basedmicrotexturestudieswhichhavebeenreportedintheliteraturearesummarized,includingthosewhichprovideadirectcomParisonwithmacrotexturemeasurementsobtainedbyX-raydiffraction.Theconceptofmicrotextureasthetext
4、ureofindividualgrainsleadsnaturallytotheideaof"mesotexture"asthetextureofgrainboundaries.MesotexturedatacanbecomputedfromtheEBSD-generatedmicrotexturemeasurementsandthisisdemonstratedandexamplesaregiven.Examplesofmicrotexture/mesotexturestudiesinmultiphasemateri
5、alsarealsoshown.Finally,becauseEBSDallowsthesimultaneousdeterminationofmicrotexture/mesotextureandmicrostructuralinformation,itispertinenttodiscusswaysofdisplayingthissortofdata,andsothereviewiscompletedbyadiscussionoftherepresentationofmicrotexturesandmesotextu
6、res,includingtheuseofRodrigues-Frankspaceandorientationmapping.1.Introductioncombinationofthepropertiesofindividualcrystals,Thisreviewisconcernedprincipallywiththeelectronandasameanstoassistinunderstandingrecrystalli-back-scatterdiffractiontechnique(EBSD)asusedi
7、nzationandgrain-growthprocesses[1-5].Forthelastthescanningelectronmicroscope(SEM)fortexturetwopurposestherearetheadditionalrequirementsofdetermination*.Thebasisofthemethodanditsim-knowingthegrainshapeandgrainvolumeassociatedplementationaredescribed,comparisonsof
8、resultswitheachindividualgrainorientation,andtherela-betweenEBSDdeterminedtexturesandX-raydeter-tionshipsthatindividualgrainshavewiththeirminedtexturesarereviewed,and
