ASTM E2627-2010 在完全再结晶的多晶体物质中使用电子背向反射衍射(EBSD)测定平均粒度的标准实施规程

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【英文标准名称】:StandardPracticeforDeterminingAverageGrainSizeUsingElectronBackscatterDiffraction(EBSD)inFullyRecrystallizedPolycrystallineMaterials
【原文标准名称】:在完全再结晶的多晶体物质中使用电子背向反射衍射(EBSD)测定平均粒度的标准实施规程
【标准号】:ASTME2627-2010
【标准状态】:现行
【国别】:美国
【发布日期】:2010
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:E04.11
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:
【英文主题词】:backscatteredelectrons;backscatterdiffraction;EBSD;Grainsize;Kikuchipattern;orientationmap;SEM;scanningelectronmicroscope
【摘要】:Thispracticeprovidesawaytoestimatetheaveragegrainsizeofpolycrystallinematerials.ItisbasedonEBSDmeasurementsofcrystallographicorientationwhichareinherentlyquantitativeinnature.Thismethodhasspecificadvantageovertraditionalopticalgrainsizemeasurementsinsomematerials,whereitisdifficulttofindappropriatemetallographicpreparationprocedurestoadequatelydelineategrainboundaries.1.1Thispracticeisusedtodeterminegrainsizefrommeasurementsofgrainareasfromautomatedelectronbackscatterdiffraction(EBSD)scansofpolycrystallinematerials.1.2TheintentofthispracticeistostandardizeoperationofanautomatedEBSDinstrumenttomeasureASTMGdirectlyfromcrystalorientation.TheguidelinesandcaveatsofE112applyhere,butthefocusofthisstandardisonEBSDpractice.1.3Thispracticeisonlyapplicabletofullyrecrystallizedmaterials.1.4ThispracticeisapplicabletoanycrystallinematerialwhichproducesEBSDpatternsofsufficientqualitythatahighpercentageofthepatternscanbereliablyindexedusingautomatedindexingsoftware.1.5Thepracticeisapplicabletoanytypeofgrainstructureorgrainsizedistribution.1.6ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.7Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.
【中国标准分类号】:A42
【国际标准分类号】:71_040_50
【页数】:4P.;A4
【正文语种】:英语