HB/Z 34-1998 变形高温合金圆饼及盘件超声波检验
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时间:2024-04-30 02:39:10
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基本信息
标准名称: | 变形高温合金圆饼及盘件超声波检验 |
中标分类: |
冶金 >>
金属理化性能试验方法 >>
金属无损检验方法 |
ICS分类: |
冶金 >>
金属材料试验 >>
金属材料无损检测
|
替代情况: | HB/Z 34-82 |
发布日期: | 1998-06-26 |
实施日期: | 1998-07-01 |
首发日期: | 1900-01-01 |
作废日期: | 1900-01-01 |
出版日期: | 1900-01-01 |
页数: | 6页 |
适用范围
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前言
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目录
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引用标准
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所属分类: 冶金 金属理化性能试验方法 金属无损检验方法 冶金 金属材料试验 金属材料无损检测
【英文标准名称】:Microbiologyoffoodandanimalfeedingstuffs-Horizontalmethodfortheenumerationofbeta-glucuronidasepositiveEscherichiacoliusing5-bromo-4-chloro-3-indolylbeta-D-glucuronidebycolonycounttechniqueat44oC-Routinemethod.
【原文标准名称】:食物和动物饲料的微生物学.44℃时通过菌落计数法用5-溴-4-氯-3-吲哚β-D-葡糖苷酸对β-葡糖苷酸酶阳性大肠杆菌计数的水平法.常规法
【标准号】:NFV08-053-2002
【标准状态】:作废
【国别】:法国
【发布日期】:2002-11-01
【实施或试行日期】:2002-11-05
【发布单位】:法国标准化协会(FR-AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:
【中国标准分类号】:C53
【国际标准分类号】:07_100_30
【页数】:10P.;A4
【正文语种】:其他
【英文标准名称】:StandardGuideforMetallographicPreparationofThermalSprayedCoatings
【原文标准名称】:热喷涂层的金相制备用标准指南
【标准号】:ASTME1920-2003(2008)
【标准状态】:现行
【国别】:美国
【发布日期】:2003
【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】:E04.01
【标准类型】:(Guide)
【标准水平】:()
【中文主题词】:
【英文主题词】:flamespray;flamesprayedcoating;highvelocityoxy&x2013;fuelcoatings;HVOFcoatings;metallography;plasmaspray;plasmasprayedcoatings;specimenpreparation,metallographic;thermalsprayedcoatings;thermalspray;Fla
【摘要】:TSCsareusedinanumberofcriticalindustrialcomponents.TSCscanbeexpectedtocontainmeasurablelevelsofporosityandlineardetachment.Accurateandconsistentevaluationofspecimensisessentialtoensuretheintegrityofthecoatingandproperadherencetothesubstrate.Example1:Byuseofinappropriatemetallographicmethods,theapparentamountofporosityandlineardetachmentdisplayedbyagivenspecimencanbeincreased,byexcessiveedgerounding,ordecreasedbysmearingofmaterialintovoids.Thereforeinaccuratelevelsofporosityandlineardetachmentwillbereportedevenwhentheaccuracyofthemeasurementtechniqueisacceptable.Example2:Inconsistentmetallographicpreparationmethodscancausetheapparentamountofvoidstovaryexcessivelyindicatingapoorlycontrolledthermalsprayprocess,whiletheuseofconsistentpracticewillregularlydisplaythetruemicrostructureandverifytheconsistencyofthethermalsprayprocess.DuringthedevelopmentofTSCprocedures,metallographicinformationisnecessarytovalidatetheefficacyofaspecificapplication.Crosssectionsareusuallytakenperpendiculartothelongaxisofthespecimenandpreparedtorevealinformationconcerningthefollowing:Variationsinstructurefromsurfacetosubstrate,Thedistributionofunmeltedparticlesthroughoutthecoating,Thedistributionoflineardetachmentthroughoutthecoating,Thedistributionofporositythroughoutthecoating,Thepresenceofcontaminationwithinthecoating,Thethicknessofthecoating(topcoatandbondcoat,whereapplicable),Thepresenceofinterfacialcontamination,Theintegrityoftheinterfacebetweenthecoatingandsubstrate,and,Theintegrityofthecoatingmicrostructurewithrespecttochemistry.1.1Thisguidecoversrecommendationsforsectioning,cleaning,mounting,grinding,andpolishingtorevealthemicrostructuralfeaturesofthermalsprayedcoatings(TSCs)andthesubstratestowhichtheyareappliedwhenexaminedmicroscopically.Becauseofthediversityofavailableequipment,thewidevarietyofcoatingandsubstratecombinations,andthesensitivityofthesespecimenstopreparationtechnique,theexistenceofaseriesofrecommendedmethodsformetallographicpreparationofthermalsprayedcoatingspecimensishelpful.Adherencetothisguidewillprovidepractitionerswithconsistentandreproducibleresults.AdditionalinformationconcerningstandardpracticesformetallographicpreparationcanbefoundinPracticeE3.1.2Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:A29
【国际标准分类号】:25_220_20
【页数】:5P.;A4
【正文语种】:英语