DIN EN 1713-1998 焊缝的无损检验.超声波检验.焊缝的表示特征
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【英文标准名称】:Non-destructiveexaminationofwelds-Ultrasonicexamination-Characterizationofindicationsinwelds;GermanversionEN1713:1998
【原文标准名称】:焊缝的无损检验.超声波检验.焊缝的表示特征
【标准号】:DINEN1713-1998
【标准状态】:作废
【国别】:德国
【发布日期】:1998-08
【实施或试行日期】:
【发布单位】:德国标准化学会(DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:缺陷;方法;超声波学;缺陷与故障;焊接接头;无损检验;超声检验;焊缝;材料试验;描述;焊接;材料;焊接工程;试验;分类;表面
【英文主题词】:weldingengineering;welds;surfaces;defects;descriptions;testing;ultrasonics;non-destructivetesting;ultrasonictesting;methods;welding;materials;classification;weldedjoints;materialstesting
【摘要】:
【中国标准分类号】:J33;H26
【国际标准分类号】:25_160_40
【页数】:10P;A4
【正文语种】:德语
【英文标准名称】:StandardPracticeforConstant-Amplitude,Axial,Tension-TensionCyclicFatigueofAdvancedCeramicsatAmbientTemperatures
【原文标准名称】:高级陶瓷在环境温度下的恒幅轴向张力循环疲劳性能测定的标准实施规程
【标准号】:ASTMC1361-2010
【标准状态】:现行
【国别】:美国
【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】:C28.01
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:
【英文主题词】:advancedceramic;S-Ncurve;tension-tensioncyclicfatigue;Advancedceramics;Ambienttemperature;Constant-amplitudeaxialtension-tensionfatigue;S-Ncurve;Tensileproperties/testing--ceramics;Tension-tensioncyclicfatigue
【摘要】:Thispracticemaybeusedformaterialdevelopment,materialcomparison,qualityassurance,characterization,reliabilityassessment,anddesigndatageneration.High-strength,monolithicadvancedceramicmaterialsaregenerallycharacterizedbysmallgrainsizes(x003C;50x03BC;m)andbulkdensitiesnearthetheoreticaldensity.Thesematerialsarecandidatesforload-bearingstructuralapplicationsrequiringhighdegreesofwearandcorrosionresistance,andhigh-temperaturestrength.Althoughflexuraltestmethodsarecommonlyusedtoevaluatestrengthofadvancedceramics,thenonuniformstressdistributioninaflexurespecimenlimitsthevolumeofmaterialsubjectedtothemaximumappliedstressatfracture.Uniaxially-loadedtensilestrengthtestsmayprovideinformationonstrength-limitingflawsfromagreatervolumeofuniformlystressedmaterial.CyclicfatiguebyitsnatureisaprobabilisticphenomenonasdiscussedinSTP91AandSTP588.(1,2)Inaddition,thestrengthsofadvancedceramicsareprobabilisticinnature.Therefore,asufficientnumberoftestspecimensateachtestingconditionisrequiredforstatisticalanalysisanddesign,withguidelinesforsufficientnumbersprovidedinSTP91A,(1)STP588,(2)andPracticeE739.Themanydifferenttensilespecimengeometriesavailableforcyclicfatiguetestingmayresultinvariationsinthemeasuredcyclicfatiguebehaviorofaparticularmaterialduetodifferencesinthevolumeorsurfaceareaofmaterialinthegagesectionofthetestspecimens.Tensilecyclicfatiguetestsprovideinformationonthematerialresponseunderfluctuatinguniaxialtensilestresses.Uniformstressstatesarerequiredtoeffectivelyevaluateanynon-linearstress-strainbehaviorwhichmaydevelopastheresultofcumulativedamageprocesses(forexample,microcracking,cyclicfatiguecrackgrowth,etc.).Cumulativedamageprocessesduetocyclicfatiguemaybeinfluencedbytestingmode,testingrate(relatedtofrequency),differencesbetweenmaximumandminimumforce(Rorx0391;),effectsofprocessingorcombinationsofconstituentmaterials,orenvironmentalinfluences,orboth.Otherfactorsthatinfluencecyclicfatiguebehaviourare:voidorporositycontent,methodsoftestspecimenpreparationorfabrication,testspecimenconditioning,testenvironment,forceorstrainlimitsduringcycling,waveshapes(thatis,sinusoidal,trapezoidal,etc.),andfailuremode.Someoftheseeffectsmaybeconsequencesofstresscorrosionorsubcritical(slow)crackgrowthwhichcanbedifficulttoquantify.Inaddition,surfaceornear-surfaceflawsintroducedbythetestspecimenfabricationprocess(machining)mayormaynotbequantifiablebyconventionalmeasurementsofsurfacetexture.Therefore,surfaceeffects(forexample,asreflectedincyclicfatiguereductionfactorsasclassifiedbyMarin(3))mustbeinferredfromtheresultsofnumerouscyclicfatiguetestsperformedwithtestspecimenshavingidenticalfabricationhistories.Theresultsofcyclicfatiguetestsofspecimensfabricatedtostandardizeddimensionsfromaparticularmaterialorselectedportionsofapart,orboth,maynottotallyrepresentthecyclicfatiguebehavioroftheentire,full-sizeendproductoritsin-servicebehaviorindifferentenvironments.However,forqualitycontrolpurposes,resultsderivedfromstandardizedtensiletestspecimensmaybeconsideredindicativeoftheresponseofthematerialfromwhichtheyweretakenforgivenprimaryprocessingconditionsandpost-processingheattreatments.Th.........
【中国标准分类号】:Q32
【国际标准分类号】:81_060_30
【页数】:9P.;A4
【正文语种】:英语
基本信息
| 标准名称： | 波浪仪器测试方法 |
| 中标分类： |
仪器、仪表 >>
其他仪器仪表 >>
海洋仪器 |
| 发布日期： | 1994-09-08 |
| 实施日期： | 1995-05-01 |
| 首发日期： | 1900-01-01 |
| 作废日期： | 2011-08-15 |
| 归口单位： | 山东海洋仪器所 |
| 出版日期： | 1900-01-01 |
| 页数： | 7 页 |
适用范围
本标准规定了波浪仪器的波高、周期及发射机、接收机、锚灯闪光等测试项目的测试原理、测试设备、测试方法和测试结果的计算和评定。
前言
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引用标准
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所属分类： 仪器 仪表 其他仪器仪表 海洋仪器
