SAE AMS7821 Molybdenum Alloy Forgings 0.5 Ti 0.08 Zr Arc Cast, Stress Relieved (Cancelled Dec 2002)
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Product Code:SAE AMS7821
Title:Molybdenum Alloy Forgings 0.5 Ti 0.08 Zr Arc Cast, Stress Relieved (Cancelled Dec 2002)
Issuing Committee:Ams G Titanium And Refractory Metals Committee
Scope:
Title:Molybdenum Alloy Forgings 0.5 Ti 0.08 Zr Arc Cast, Stress Relieved (Cancelled Dec 2002)
Issuing Committee:Ams G Titanium And Refractory Metals Committee
Scope:
下载地址: 点击此处下载
上一篇: SAE AMS7813 Molybdenum Alloy Bars 0.5 Ti Arc Cast, Stress Relieved (Cancelled Dec 2002)
下一篇: SAE AMS7899 Tungsten Sheet and Strip (Cancelled Dec 2002)
下一篇: SAE AMS7899 Tungsten Sheet and Strip (Cancelled Dec 2002)
【英文标准名称】:StandardPracticeforQuantitativeMeasurementandReportingofHypoeutectoidCarbonandLow-AlloySteelPhaseTransformations
【原文标准名称】:亚共析碳钢和低合金钢相位变换的定量测量和报告的标准规程
【标准号】:ASTMA1033-2010
【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】:A01.13
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:膨胀计测定法;相位变换;薄板;应变;碳钢;连续涂层变换数据;热膨胀计法;尺寸变化;高速膨胀测定法技术;亚共析钢相位变换;等温条件/测试;低合金钢;微观结构;相(位)分析;定量分析/测量;钢棒
【英文主题词】:dilatometry;phasetransformations;steel;strain;Carbonsteel;Continuouscoatingtransformationdata;Dilatometermethod;Dimensionalchange;Highspeeddilatometrytechniques;Hypoeuctectoidsteelphasetransformations;Isothermalconditions/testi
【摘要】:Thispracticeisusedtoprovidesteelphasetransformationdatarequiredforuseinnumericalmodelsforthepredictionofmicrostructures,properties,anddistortionduringsteelmanufacturing,forging,casting,heattreatment,andwelding.Alternatively,thepracticeprovidesendusersofsteelandfabricatedsteelproductsthephasetransformationdatarequiredforselectingsteelgradesforagivenapplicationbydeterminingthemicrostructureresultingfromaprescribedthermalcycle.Thereareavailableseveralcomputermodelsdesignedtopredictthemicrostructures,mechanicalproperties,anddistortionofsteelsasafunctionofthermalprocessingcycle.Theiruseispredicatedontheavailabilityofaccurateandconsistentthermalandtransformationstraindata.Strain,boththermalandtransformation,developedduringthermalcyclingistheparameterusedinpredictingbothmicrostructureandproperties,andforestimatingdistortion.Itshouldbenotedthatthesemodelsareundergoingcontinueddevelopment.Thisprocessisaimed,amongotherthings,atestablishingadirectlinkbetweendiscretevaluesofstrainandspecificmicrostructureconstituentsinsteels.Thispracticedescribesastandardizedmethodformeasuringstrainduringadefinedthermalcycle.Thispracticeissuitableforprovidingdataforcomputermodelsusedinthecontrolofsteelmanufacturing,forging,casting,heat-treating,andweldingprocesses.Itisalsousefulinprovidingdataforthepredictionofmicrostructuresandpropertiestoassistinsteelalloyselectionforend-useapplications.Thispracticeissuitableforprovidingthedataneededfortheconstructionoftransformationdiagramsthatdepictthemicrostructuresdevelopedduringthethermalprocessingofsteelsasfunctionsoftimeandtemperature.Suchdiagramsprovideaqualitativeassessmentoftheeffectsofchangesinthermalcycleonsteelmicrostructure.AppendixX2describesconstructionofthesediagrams.Itshouldberecognizedthatthermalandtransformationstrains,whichdevelopinsteelsduringthermalcycling,aresensitivetochemicalcomposition.Thus,anisotropyinchemicalcompositioncanresultinvariabilityinstrain,andcanaffecttheresultsofstraindeterminations,especiallydeterminationofvolumetricstrain.Strainsdeterminedduringcoolingaresensitivetothegrainsizeofaustenite,whichisdeterminedbytheheatingcycle.ThemostconsistentresultsareobtainedwhenaustenitegrainsizeismaintainedbetweenASTMgrainsizesof5to8.Finally,theeutectoidcarboncontentisdefinedas0.8%forcarbonsteels.Additionsofalloyingelementscanchangethisvalue,alongwithAc1andAc3temperatures.Heatingcyclesneedtobeemployed,asdescribedbelow,toensurecompleteformationofausteniteprecedingstrainmeasurementsduringcooling.1.1Thispracticecoversthedeterminationofhypoeutectoidsteelphasetransformationbehaviorbyusinghigh-speeddilatometrytechniquesformeasuringlineardimensionalchangeasafunctionoftimeandtemperature,andreportingtheresultsaslinearstrainineitheranumericalorgraphicalformat.1.2Thepracticeisapplicabletohigh-speeddilatometryequipmentcapableofprogrammablethermalprofilesandwithdigitaldatastorageandoutputcapability.1.3Thispracticeisapplicabletothedeterminationofsteelphasetransformationbehaviorunderbothisothermalandcontinuouscoolingconditions.1.4Thispracticeincludesrequirementsforobtainingmetallographicinformationtobeusedasasupplementtothedilatometrymeasurements.1.5ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.6Thisstandarddoesnotpurporttoa......
【中国标准分类号】:H20
【国际标准分类号】:77_040_99
【页数】:14P.;A4
【正文语种】:
【原文标准名称】:亚共析碳钢和低合金钢相位变换的定量测量和报告的标准规程
【标准号】:ASTMA1033-2010
【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】:A01.13
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:膨胀计测定法;相位变换;薄板;应变;碳钢;连续涂层变换数据;热膨胀计法;尺寸变化;高速膨胀测定法技术;亚共析钢相位变换;等温条件/测试;低合金钢;微观结构;相(位)分析;定量分析/测量;钢棒
【英文主题词】:dilatometry;phasetransformations;steel;strain;Carbonsteel;Continuouscoatingtransformationdata;Dilatometermethod;Dimensionalchange;Highspeeddilatometrytechniques;Hypoeuctectoidsteelphasetransformations;Isothermalconditions/testi
【摘要】:Thispracticeisusedtoprovidesteelphasetransformationdatarequiredforuseinnumericalmodelsforthepredictionofmicrostructures,properties,anddistortionduringsteelmanufacturing,forging,casting,heattreatment,andwelding.Alternatively,thepracticeprovidesendusersofsteelandfabricatedsteelproductsthephasetransformationdatarequiredforselectingsteelgradesforagivenapplicationbydeterminingthemicrostructureresultingfromaprescribedthermalcycle.Thereareavailableseveralcomputermodelsdesignedtopredictthemicrostructures,mechanicalproperties,anddistortionofsteelsasafunctionofthermalprocessingcycle.Theiruseispredicatedontheavailabilityofaccurateandconsistentthermalandtransformationstraindata.Strain,boththermalandtransformation,developedduringthermalcyclingistheparameterusedinpredictingbothmicrostructureandproperties,andforestimatingdistortion.Itshouldbenotedthatthesemodelsareundergoingcontinueddevelopment.Thisprocessisaimed,amongotherthings,atestablishingadirectlinkbetweendiscretevaluesofstrainandspecificmicrostructureconstituentsinsteels.Thispracticedescribesastandardizedmethodformeasuringstrainduringadefinedthermalcycle.Thispracticeissuitableforprovidingdataforcomputermodelsusedinthecontrolofsteelmanufacturing,forging,casting,heat-treating,andweldingprocesses.Itisalsousefulinprovidingdataforthepredictionofmicrostructuresandpropertiestoassistinsteelalloyselectionforend-useapplications.Thispracticeissuitableforprovidingthedataneededfortheconstructionoftransformationdiagramsthatdepictthemicrostructuresdevelopedduringthethermalprocessingofsteelsasfunctionsoftimeandtemperature.Suchdiagramsprovideaqualitativeassessmentoftheeffectsofchangesinthermalcycleonsteelmicrostructure.AppendixX2describesconstructionofthesediagrams.Itshouldberecognizedthatthermalandtransformationstrains,whichdevelopinsteelsduringthermalcycling,aresensitivetochemicalcomposition.Thus,anisotropyinchemicalcompositioncanresultinvariabilityinstrain,andcanaffecttheresultsofstraindeterminations,especiallydeterminationofvolumetricstrain.Strainsdeterminedduringcoolingaresensitivetothegrainsizeofaustenite,whichisdeterminedbytheheatingcycle.ThemostconsistentresultsareobtainedwhenaustenitegrainsizeismaintainedbetweenASTMgrainsizesof5to8.Finally,theeutectoidcarboncontentisdefinedas0.8%forcarbonsteels.Additionsofalloyingelementscanchangethisvalue,alongwithAc1andAc3temperatures.Heatingcyclesneedtobeemployed,asdescribedbelow,toensurecompleteformationofausteniteprecedingstrainmeasurementsduringcooling.1.1Thispracticecoversthedeterminationofhypoeutectoidsteelphasetransformationbehaviorbyusinghigh-speeddilatometrytechniquesformeasuringlineardimensionalchangeasafunctionoftimeandtemperature,andreportingtheresultsaslinearstrainineitheranumericalorgraphicalformat.1.2Thepracticeisapplicabletohigh-speeddilatometryequipmentcapableofprogrammablethermalprofilesandwithdigitaldatastorageandoutputcapability.1.3Thispracticeisapplicabletothedeterminationofsteelphasetransformationbehaviorunderbothisothermalandcontinuouscoolingconditions.1.4Thispracticeincludesrequirementsforobtainingmetallographicinformationtobeusedasasupplementtothedilatometrymeasurements.1.5ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.6Thisstandarddoesnotpurporttoa......
【中国标准分类号】:H20
【国际标准分类号】:77_040_99
【页数】:14P.;A4
【正文语种】:
基本信息
| 标准名称： | Ｊ１型（锡焊）晶体盒详细规范 |
| 英文名称： | Detail specification for (soldered) crystal holders (enclosures) for Type J1 |
| 中标分类： | 电子元器件与信息技术 >> 电子元器件与信息技术综合 >> 技术管理 |
| 发布日期： | 1987-11-14 |
| 实施日期： | 1988-07-01 |
| 首发日期： | 1900-01-01 |
| 作废日期： | 1900-01-01 |
| 出版日期： | 1900-01-01 |
| 页数： | 2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： 电子元器件与信息技术 电子元器件与信息技术综合 技术管理
