【英文标准名称】:StandardTestMethodforPreparingQuantitativePoleFigures
【原文标准名称】:定量极性图制备的标准试验方法
【标准号】:ASTME81-1996(2007)
【标准状态】:现行
【国别】:
【发布日期】:1996
【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】:(TestMethod)
【标准水平】:()
【中文主题词】:准备;试验;定量的;金属;竿材;数字
【英文主题词】:crystal;orientation;polefigure;X-raydiffraction
【摘要】:Polefiguresaretwo-dimensionalgraphicrepresentations,onpolarcoordinatepaper,oftheaveragedistributionofcrystalliteorientationsinthreedimensions.DataforconstructingpolefiguresareobtainedwithX-raydiffractometers,usingreflectionandtransmissiontechniques.Severalalternativeproceduresmaybeused.Someproducecompletepolefigures.Othersyieldpartialpolefigures,whichmaybecombinedtoproduceacompletefigure.1.1ThistestmethodcoverstheuseoftheX-raydiffractometertopreparequantitativepolefigures.1.2Thetestmethodconsistsofseveralexperimentalprocedures.Someoftheprocedures(1-5)permitpreparationofacompletepolefigure.Othersmustbeusedincombinationtoproduceacompletepolefigure.1.3Polefigures(6)andinversepolefigures(7-10)aretwo-dimensionalaveragesofthethree-dimensionalcrystalliteorientationdistribution.Polefiguresmaybeusedtoconstructeitherinversepolefigures(11-13)orthecrystalliteorientationdistribution(14-21).Developmentofseriesexpansionsofthecrystalliteorientationdistributionfromreflectionpolefigures(22,23)makesitpossibletoobtainaseriesexpansionofacompletepolefigurefromseveralincompletepolefigures.Polefiguresorinversepolefiguresderivedbysuchmethodsshallbetermedcalculated.Thesetechniqueswillnotbedescribedherein.1.4Providedtheorientationishomogeneousthroughthethicknessofthesheet,certainprocedures(1-3)maybeusedtoobtainacompletepolefigure.1.5Providedtheorientationhasmirrorsymmetrywithrespecttoplanesperpendiculartotherolling,transverse,andnormaldirections,certainprocedures(4,5,24)maybeusedtoobtainacompletepolefigure.1.6ThetestmethodemphasizestheSchulzreflectiontechnique(25).Othertechniques(3,4,5,24)maybeconsideredvariantsoftheSchulztechniqueandarecitedasoptions,butnotdescribedherein.1.7ThetestmethodalsoincludesadescriptionofthetransmissiontechniqueofDecker,etal(26),whichmaybeusedinconjunctionwiththeSchulzreflectiontechniquetoobtainacompletepolefigure.1.8Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:H04
【国际标准分类号】:77_040_99
【页数】:7P.;A4
【正文语种】: