DIN V ENV 12837-2000 涂料和清漆.通过防护涂料体系评定钢结构腐蚀防护检验员的资格

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【英文标准名称】:StandardPracticeforSteelCasting,AusteniticAlloy,EstimatingFerriteContentThereof
【原文标准名称】:奥氏体合金钢铸件中铁素体含量估算的标准实施规程
【标准号】:ASTMA800/A800M-2010
【标准状态】:现行
【国别】:
【发布日期】:2010
【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】:A01.18
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:奥氏体;奥氏体不锈钢;铁素体;?舍费尔图;钢铸件;奥氏体不锈钢铸件;铁素含量;铁铬铸件;微观结构
【英文主题词】:austenite;austeniticstainlesssteel;ferrite;SchoeferDiagram;steelcastings;Austeniticstainlesssteelcastings;Ferritecontent;Iron-chromiumcastings;Microstructures
【摘要】:Thetensileandimpactproperties,theweldability,andthecorrosionresistanceofiron-chromium-nickelalloycastingsmaybeinfluencedbeneficiallyordetrimentallybytheratiooftheamountofferritetotheamountofausteniteinthemicrostructure.Theferritecontentmaybelimitedbypurchaseorderrequirementsorbythedesignconstructioncodesgoverningtheequipmentinwhichthecastingswillbeused.Thequantityofferriteinthestructureisfundamentallyafunctionofthechemicalcompositionofthealloyanditsthermalhistory.Becauseofsegregation,thechemicalcomposition,and,therefore,theferritecontent,maydifferfrompointtopointonacasting.Determinationoftheferritecontentbyanyoftheproceduresdescribedinthefollowingpracticeissubjecttovaryingdegreesofimprecisionwhichmustberecognizedinsettingrealisticlimitsontherangeofferritecontentspecified.Sourcesoferrorincludethefollowing:InDeterminationsfromChemicalComposition8212;Deviationsfromtheactualquantityofeachelementpresentinanalloybecauseofchemicalanalysisvariance,althoughpossiblyminorineachcase,canresultinsubstantialdifferenceintheratiooftotalferrite-promotingtototalaustenite-promotingelements.Therefore,theprecisionoftheferritecontentestimatedfromchemicalcompositiondependsontheaccuracyofthechemicalanalysisprocedure.InDeterminationsfromMagneticResponse8212;Phasesotherthanferriteandaustenitemaybeformedatcertaintemperaturesandpersistatroomtemperature.Thesemaysoalterthemagneticresponseofthealloythattheindicatedferritecontentisquitedifferentfromthatofthesamechemicalcompositionthathasundergonedifferentthermaltreatment.Also,becausethemagnetsorprobesofthevariousmeasuringinstrumentsaresmall,differentdegreesofsurfaceroughnessorsurfacecurvaturewillvarythemagneticlinkagewiththematerialbeingmeasured.InDeterminationsfromMetallographicExamination8212;Metallographicpointcountestimatesofferritepercentagemayvarywiththeetchingtechniqueusedforidentificationoftheferritephaseandwiththenumberofgridpointschosenfortheexamination,asexplainedinTestMethodE562.Theestimationofferritepercentbychemicalcompositionoffersthemostusefulandmostcommonmethodofferritecontrolduringmeltingofthemetal.Formostaccurateestimateofferritepercent,aquantitativemetallographicmethodshouldbeused.1.1Thispracticecoversproceduresanddefinitionsforestimatingferritecontentincertaingradesofausteniticiron-chromium-nickelalloycastingsthathavecompositionsbalancedtocreatetheformationofferriteasasecondphaseinamountscontrolledtobewithinspecifiedlimits.Methodsaredescribedforestimatingferritecontentbychemical,magnetic,andmetallographicmeans.1.2Thegradescoveredbythispracticeare:CF-3,CF-3A,CF-8,CF-8A,CF-3M,CF-3MA,CF-8M,CF-8C,CG-8M,andCH-10.1.3Thevaluesstatedineitherinch-poundunitsorSIunitsaretoberegardedseparatelyasstandard.Thevaluesstatedineachsystemarenotexactequivalents;therefore,eachsystemmustbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnonconformancewiththepractice.1.3.1Withinthetext,theSIunitsareshowninbrackets.1.4Thisstandarddoesnotpurporttoaddressthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuser......
【中国标准分类号】:H11
【国际标准分类号】:77_140_80
【页数】:6P.;A4
【正文语种】:


【英文标准名称】:Productsandsystemsfortheprotectionandrepairofconcretestructures-Testmethods-Determinationofcarbonationdepthinhardenedconcretebythephenolphthaleinmethod
【原文标准名称】:混凝土结构的保护和修整用产品和设备.试验方法.用酚酞方法对硬化混凝土中碳化作用深度的测定
【标准号】:BSEN14630-2006
【标准状态】:现行
【国别】:英国
【发布日期】:2006-11-30
【实施或试行日期】:2006-11-30
【发布单位】:英国标准学会(BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:碳酸饱和;混凝土构件;混凝土覆层;混凝土;防腐蚀;含量测定;检验;实验室试验;测量;酚酞;保护(装置);保护系统;检修;抽样方法;规范(验收);结构;表面防护;试验
【英文主题词】:Carbonation;Concretecomponents;Concretecover;Concretes;Corrosionprotection;Determinationofcontent;Inspection;Laboratorytesting;Measurement;Phenolphthalein;Protection;Protectionsystems;Repair;Samplingmethods;Specification(approval);Structures;Surfaceprotection;Testing
【摘要】:Thephenolphthaleintestmethodisintendedtomeasurethedepthofthecarbonatedlayernearthesurfaceofhardenedconcrete.Itisnotsuitableforconcretemadewithcalciumaluminatecement.Itmaybeusedonsiteorinthelaboratory,ontestspecimensoroncoresorfragmentsremovedfromhardenedconcretestructures.
【中国标准分类号】:P97
【国际标准分类号】:91_080_40
【页数】:12P.;A4
【正文语种】:英语