【英文标准名称】:StandardPracticeforInstrumentedIndentationTesting
【原文标准名称】:仪器刻痕试验的标准实施规程
【标准号】:ASTME2546-2007
【标准状态】:现行
【国别】:
【发布日期】:2007
【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】:E28.06
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:刻痕;无损检验;测试
【英文主题词】:forcedisplacementcurve;indentationhardness;indentationmodulus;indentershapefunction;instrumentcompliance;instrumentedindentation;zeropoint
【摘要】:IITInstrumentsareusedtoquantitativelymeasurevariousmechanicalpropertiesofthincoatingsandothervolumesofmaterialwhenothertraditionalmethodsofdeterminingmaterialpropertiescannotbeusedduetothesizeorconditionofthesample.Thispracticewillestablishthebasicrequirementsforthoseinstruments.ItisintendedthatIITbasedtestmethodswillbeabletorefertothispracticeforthebasicrequirementsforforceanddisplacementaccuracy,reproducibility,verification,reporting,etc.,thatarenecessaryforobtainingmeaningfultestresults.IITisnotrestrictedtospecifictestforces,displacementranges,orindentertypes.Thispracticecoverstherequirementsforawiderangeofnano,micro,andmacro(seeISO14577-1)indentationtestingapplications.ThevariousIITinstrumentsarerequiredtoadheretotherequirementsofthepracticewithinthetheirspecificdesignranges.1.1ThispracticedefinesthebasicstepsofInstrumentedIndentationTesting(IIT)andestablishestherequirements,accuracies,andcapabilitiesneededbyaninstrumenttosuccessfullyperformthetestandproducethedatathatcanbeusedforthedeterminationofindentationhardnessandothermaterialcharacteristics.IITisamechanicaltestthatmeasurestheresponseofamaterialtotheimposedstressandstrainofashapedindenterbyforcingtheindenterintoamaterialandmonitoringtheforceon,anddisplacementof,theindenterasafunctionoftimeduringthefullloading-unloadingtestcycle.1.2TheoperationalfeaturesofanIITinstrument,aswellasrequirementsforInstrumentVerificationAnnexA1),StandardizedReferenceBlocks(AnnexA2)andIndenterRequirements(AnnexA3)aredefined.ThispracticeisnotintendedtobeacompletepurchasespecificationforanIITinstrument.1.3Withtheexceptionofthenon-mandatoryAppendixX4,thispracticedoesnotdefinetheanalysisnecessarytodeterminematerialproperties.Thatanalysisisleftforothertestmethods.AppendixX4includessomebasicanalysistechniquestoallowfortheindirectperformanceverificationofanIITinstrumentbyusingtestblocks.1.4Zeropointdetermination,instrumentcompliancedeterminationandtheindirectdeterminationofanindentersareafunctionareimportantpartsoftheIITprocess.Thepracticedefinestherequirementsfortheseitemsandincludesnon-mandatoryappendixestohelptheuserdefinethem.1.5Theuseofdeliberatelateraldisplacementsisnotincludedinthispractice(thatis,scratchtesting).1.6ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:N04
【国际标准分类号】:19_100
【页数】:23P.;A4
【正文语种】: