ASTM C1322-2005b 高级陶瓷中断裂处的断口组织照片和表征的标准规程

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【英文标准名称】:StandardPracticeforFractographyandCharacterizationofFractureOriginsinAdvancedCeramics
【原文标准名称】:高级陶瓷中断裂处的断口组织照片和表征的标准规程
【标准号】:ASTMC1322-2005b
【标准状态】:现行
【国别】:
【发布日期】:2005
【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】:C28.01
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:裂纹;合金;实施规程;镜子;高级工业陶瓷;极限特性
【英文主题词】:advancedceramics;flaws;fractography;fracturemechanics;fracturemirrors;fractureorigins;microscopy;
【摘要】:1.1Theobjectiveofthispracticeistoprovideanefficientandconsistentmethodologytolocateandcharacterizefractureoriginsinadvancedceramics.Itisapplicabletoadvancedceramicswhicharebrittle;thatis,thematerialadherestoHooke'sLawuptofracture.Insuchmaterials,fracturecommencesfromasinglelocationwhichistermedthefractureorigin.Thefractureorigininbrittleceramicsnormallyconsistsofsomeirregularityorsingularityinthematerialwhichactsasastressconcentrator.Intheparlanceoftheengineerorscientist,theseirregularitiesaretermedflawsordefects.Thelattershouldnotbeconstruedtomeanthatthematerialhasbeenpreparedimproperlyorissomehowfaulty.1.2Althoughthispracticeisprimarilyintendedforlaboratorytestpieceanalysis,thegeneralconceptsandproceduresmaybeappliedtocomponentfailureanalysesaswell.Inmanycases,componentfailureanalysismaybeaidedbycuttinglaboratorytestpiecesoutofthecomponent.Informationgleanedfromtestingthelaboratorypieces(forexample,flawtypes,generalfracturefeatures,fracturemirrorconstants)maythenaidinterpretationofcomponentfractures.Formoreinformationoncomponentfractureanalysis,seeRef(1)178;.1.3ThispracticesupersedesMilitaryHandbook790.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:Q32
【国际标准分类号】:19_060;81_060_99
【页数】:50P.;A4
【正文语种】: