ASTM E2142-2001 利用扫描电子显微镜测定钢中杂质的额定值和分级的标准试验方法

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【英文标准名称】:StandardTestMethodsforRatingandClassifyingInclusionsinSteelUsingtheScanningElectronMicroscope
【原文标准名称】:利用扫描电子显微镜测定钢中杂质的额定值和分级的标准试验方法
【标准号】:ASTME2142-2001
【标准状态】:现行
【国别】:
【发布日期】:2001
【实施或试行日期】:
【发布单位】:美国材料与试验协会(ASTM)
【起草单位】:E04.11
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:automaticimageanalysis;complexinclusions;EDX;globularinclusions;inclusions;inclusionratings;inclusionstringers;oxides;second-phaseparticles;SEM;steel;stereology;sulfides;X-Raymicroanalysis;
【摘要】:1.1Thistestmethodcoversprocedurestoobtainparticlesizedistribution,chemicalclassification,andE45ratingsofinclusionsinsteelsusinganautomatedscanningelectronmicroscope(SEM)withX-rayanalysisandautomaticimageanalysiscapabilities.1.2Therearethreediscretemethodsdescribed.Method1istheSEManalogofE1122,whichusesimageanalysisandlightmicroscopytoproduceautomatedE45ratings.Method2producessimilarratingsbasedpredominantlyonsortinginclusionsbychemistryintothetraditionalclassesdefinedinE45.Method3isrecommendedwhenexplicitdetailisneededonparticularinclusiontypes,notnecessarilydefinedinE45,suchastoverifythecompositionofinclusionsininclusion-engineeredsteel.Method3reportsstereologicalparameterssuchasvolumeornumberfraction,ratherthanE45typeratings.1.3Thistestmethoddealsonlywiththerecommendedtestmethodsandnothinginitshouldbeconstruedasdefiningorestablishinglimitsofacceptabilityforanygradeofsteelorotheralloywherethemethodisappropriate.1.4ThevaluesstatedinSIunitsaretoberegardedasthestandard.Valuesinparenthesesareconversionsandareapproximate,andforinformationonly.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:H11
【国际标准分类号】:77_140_01
【页数】:16P.;A4
【正文语种】: