ASTM F1624-2006 用增长载荷技术测量钢中氢脆性的标准试验方法
作者:标准资料网
时间:2024-05-04 05:26:45
浏览:9325
来源:标准资料网
下载地址: 点击此处下载
【英文标准名称】:StandardTestMethodforMeasurementofHydrogenEmbrittlementThresholdinSteelbytheIncrementalStepLoadingTechnique
【原文标准名称】:用增长载荷技术测量钢中氢脆性的标准试验方法
【标准号】:ASTMF1624-2006
【标准状态】:现行
【国别】:
【发布日期】:2006
【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】:F07.04
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:合金;敏感性测定;脆裂;氢;氢脆;金属材料;金属;钢;试验;时间
【英文主题词】:decreasingloadingrate;delayedbrittlefailure;displacementcontrol;hydrogenembrittlementthreshold;hydrogeninducedstresscracking;risingstepload;slowstrainrate
【摘要】:Thistestmethodisusedforresearch,design,serviceevaluation,manufacturingcontrol,anddevelopment.Thistestmethodquantitativelymeasuresstressparametersthatareusedinadesignorfailureanalysisthattakesintoaccounttheeffectsofenvironmentalexposureincludingthatwhichoccursduringprocessing,suchasplating(8)(ASTMSTP962).Forplatingprocesses,thevalueofx03C3;th-IHEisusedtospecifyquantitativelythemaximumoperatingstressforagivenstructureorproduct.Forqualitycontrolpurposes,anacceleratedtestisdevisedthatusesaspecifiedloadingrate,whichisequaltoorlowerthantheloadingratenecessarytodeterminethethresholdstress(see8.1).Forfasteners,thevalueofx03C3;th-IHEisusedtospecifyquantitativelythemaximumstressduringinstallationandinservicetoavoidprematurefailurecausedbyresidualhydrogeninthesteelasaresultofprocessing.Forfasteners,thevalueofx03C3;th-EHEisusedtospecifyquantitativelythemaximumstressduringinstallationandinservicetoavoidfailurefromhydrogenabsorbedduringexposuretoaspecificenvironment.Tomeasuretherelativesusceptibilityofsteelstohydrogenpickupfromvariousfabricationprocesses,asingle,selected,discriminatingrateisusedtoranktheresistanceofvariousmaterialstohydrogenembrittlement.1.1Thistestmethodestablishesaproceduretomeasurethesusceptibilityofsteeltoatime-delayedfailuresuchasthatcausedbyhydrogen.Itdoessobymeasuringthethresholdfortheonsetofsubcriticalcrackgrowthusingstandardfracturemechanicsspecimens,irregular-shapedspecimenssuchasnotchedroundbars,oractualproductsuchasfasteners()(threadedorunthreaded)springsorcomponentsasidentifiedinSAEJ78,J81,andJ1237.1.2Thistestmethodisusedtoevaluatequantitatively:1.2.1Therelativesusceptibilityofsteelsofdifferentcompositionorasteelwithdifferentheattreatments;1.2.2Theeffectofresidualhydrogeninthesteelasaresultofprocessing,suchasmelting,thermalmechanicalworking,surfacetreatments,coatings,andelectroplating;1.2.3Theeffectofhydrogenintroducedintothesteelcausedbyexternalenvironmentalsourcesofhydrogen,suchasfluidsandcleanersmaintenancechemicals,petrochemicalproducts,andgalvaniccouplinginanaqueousenvironment.1.3Thetestisperformedeitherinair,tomeasuretheeffectifresidualhydrogenisinthesteelbecauseoftheprocessing(IHE),orinacontrolledenvironment,tomeasuretheeffectofhydrogenintroducedintothesteelasaresultoftheexternalsourcesofhydrogen(EHE)asdetailedinASTMSTP543.1.4Thevaluesstatedinacceptableinch-poundunitsshallberegardedasthestandard.Thevaluesstatedinmetricunitsmaynotbeexactequivalents.Conversionoftheinch-poundunitsbyappropriateconversionfactorsisrequiredtoobtainexactequivalence.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:H22
【国际标准分类号】:77_040_10
【页数】:6P.;A4
【正文语种】:
【原文标准名称】:用增长载荷技术测量钢中氢脆性的标准试验方法
【标准号】:ASTMF1624-2006
【标准状态】:现行
【国别】:
【发布日期】:2006
【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】:F07.04
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:合金;敏感性测定;脆裂;氢;氢脆;金属材料;金属;钢;试验;时间
【英文主题词】:decreasingloadingrate;delayedbrittlefailure;displacementcontrol;hydrogenembrittlementthreshold;hydrogeninducedstresscracking;risingstepload;slowstrainrate
【摘要】:Thistestmethodisusedforresearch,design,serviceevaluation,manufacturingcontrol,anddevelopment.Thistestmethodquantitativelymeasuresstressparametersthatareusedinadesignorfailureanalysisthattakesintoaccounttheeffectsofenvironmentalexposureincludingthatwhichoccursduringprocessing,suchasplating(8)(ASTMSTP962).Forplatingprocesses,thevalueofx03C3;th-IHEisusedtospecifyquantitativelythemaximumoperatingstressforagivenstructureorproduct.Forqualitycontrolpurposes,anacceleratedtestisdevisedthatusesaspecifiedloadingrate,whichisequaltoorlowerthantheloadingratenecessarytodeterminethethresholdstress(see8.1).Forfasteners,thevalueofx03C3;th-IHEisusedtospecifyquantitativelythemaximumstressduringinstallationandinservicetoavoidprematurefailurecausedbyresidualhydrogeninthesteelasaresultofprocessing.Forfasteners,thevalueofx03C3;th-EHEisusedtospecifyquantitativelythemaximumstressduringinstallationandinservicetoavoidfailurefromhydrogenabsorbedduringexposuretoaspecificenvironment.Tomeasuretherelativesusceptibilityofsteelstohydrogenpickupfromvariousfabricationprocesses,asingle,selected,discriminatingrateisusedtoranktheresistanceofvariousmaterialstohydrogenembrittlement.1.1Thistestmethodestablishesaproceduretomeasurethesusceptibilityofsteeltoatime-delayedfailuresuchasthatcausedbyhydrogen.Itdoessobymeasuringthethresholdfortheonsetofsubcriticalcrackgrowthusingstandardfracturemechanicsspecimens,irregular-shapedspecimenssuchasnotchedroundbars,oractualproductsuchasfasteners()(threadedorunthreaded)springsorcomponentsasidentifiedinSAEJ78,J81,andJ1237.1.2Thistestmethodisusedtoevaluatequantitatively:1.2.1Therelativesusceptibilityofsteelsofdifferentcompositionorasteelwithdifferentheattreatments;1.2.2Theeffectofresidualhydrogeninthesteelasaresultofprocessing,suchasmelting,thermalmechanicalworking,surfacetreatments,coatings,andelectroplating;1.2.3Theeffectofhydrogenintroducedintothesteelcausedbyexternalenvironmentalsourcesofhydrogen,suchasfluidsandcleanersmaintenancechemicals,petrochemicalproducts,andgalvaniccouplinginanaqueousenvironment.1.3Thetestisperformedeitherinair,tomeasuretheeffectifresidualhydrogenisinthesteelbecauseoftheprocessing(IHE),orinacontrolledenvironment,tomeasuretheeffectofhydrogenintroducedintothesteelasaresultoftheexternalsourcesofhydrogen(EHE)asdetailedinASTMSTP543.1.4Thevaluesstatedinacceptableinch-poundunitsshallberegardedasthestandard.Thevaluesstatedinmetricunitsmaynotbeexactequivalents.Conversionoftheinch-poundunitsbyappropriateconversionfactorsisrequiredtoobtainexactequivalence.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:H22
【国际标准分类号】:77_040_10
【页数】:6P.;A4
【正文语种】:
下载地址:
点击此处下载