ASTM G58-1985(2005) 焊件的应力腐蚀试样的制备
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【英文标准名称】:StandardPracticeforPreparationofStress-CorrosionTestSpecimensforWeldments
【原文标准名称】:焊件的应力腐蚀试样的制备
【标准号】:ASTMG58-1985(2005)
【标准状态】:现行
【国别】:
【发布日期】:1985
【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】:G01.06
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:准备;工艺;试样;应力腐蚀;金属;磨损;腐蚀
【英文主题词】:elastic;precrackedspecimens;plasticstrain;residualstresses;smoothspecimens;stress-corrosioncracking;weldheat-affectedzone;weldingconsideration
【摘要】:TheintentofthispracticeistoindicatestandardweldedspecimensandweldingproceduresforevaluatingtheSCCcharacteristicsofweldmentsincorrosiveenvironments.Thepracticedoesnotrecommendthespecificcorrosivemediathatmaybeselectedbytheuserdependingupontheintentofhisinvestigation.SpecificcorrosivemediaareincludedinPracticesG35,G36,G37,andG44.Otherenvironmentscanbeusedasrequired.1.1Thispracticecoversproceduresforthemakingandutilizationoftestspecimensfortheevaluationofweldmentsinstress-corrosioncracking(SCC)environments.1.2Testspecimensaredescribedinwhich(a)stressesaredevelopedbytheweldingprocessonly,(b)stressesaredevelopedbyanexternallyappliedloadinadditiontothestressesduetowelding,and(c)stressesaredevelopedbyanexternallyappliedloadonlywithresidualweldingstressesremovedbyannealing.1.3Thispracticeisconcernedonlywiththeweldedtestspecimenandnotwiththeenvironmentalaspectsofstress-corrosiontesting.Specificpracticesforthebendingandloadingoftestspecimens,aswellasthestressconsiderationsinvolvedinpreparationofC-rings,U-bend,bent-beam,andtensionspecimensarediscussedinotherASTMstandards.1.4Theactualstressintestspecimensremovedfromweldmentsisnotpreciselyknownbecauseitdependsuponthelevelofresidualstressfromtheweldingoperationcombinedwiththeappliedstress.AmethodfordeterminingthemagnitudeanddirectionofresidualstresswhichmaybeapplicabletoweldmentisdescribedinTestMethodE837.Thereproducibilityoftestresultsishighlydependentonthepreparationoftheweldment,thetypeoftestspecimentested,andtheevaluationcriteriaused.Sufficientreplicationshouldbeemployedtodeterminethelevelofinherentvariabilityinthespecifictestresultsthatisconsistentwiththeobjectivesofthetestprogram.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.(Formorespecificsafetyhazardinformation,seeSection.)
【中国标准分类号】:H25
【国际标准分类号】:25_160_40
【页数】:7P.;A4
【正文语种】:
【原文标准名称】:焊件的应力腐蚀试样的制备
【标准号】:ASTMG58-1985(2005)
【标准状态】:现行
【国别】:
【发布日期】:1985
【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】:G01.06
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:准备;工艺;试样;应力腐蚀;金属;磨损;腐蚀
【英文主题词】:elastic;precrackedspecimens;plasticstrain;residualstresses;smoothspecimens;stress-corrosioncracking;weldheat-affectedzone;weldingconsideration
【摘要】:TheintentofthispracticeistoindicatestandardweldedspecimensandweldingproceduresforevaluatingtheSCCcharacteristicsofweldmentsincorrosiveenvironments.Thepracticedoesnotrecommendthespecificcorrosivemediathatmaybeselectedbytheuserdependingupontheintentofhisinvestigation.SpecificcorrosivemediaareincludedinPracticesG35,G36,G37,andG44.Otherenvironmentscanbeusedasrequired.1.1Thispracticecoversproceduresforthemakingandutilizationoftestspecimensfortheevaluationofweldmentsinstress-corrosioncracking(SCC)environments.1.2Testspecimensaredescribedinwhich(a)stressesaredevelopedbytheweldingprocessonly,(b)stressesaredevelopedbyanexternallyappliedloadinadditiontothestressesduetowelding,and(c)stressesaredevelopedbyanexternallyappliedloadonlywithresidualweldingstressesremovedbyannealing.1.3Thispracticeisconcernedonlywiththeweldedtestspecimenandnotwiththeenvironmentalaspectsofstress-corrosiontesting.Specificpracticesforthebendingandloadingoftestspecimens,aswellasthestressconsiderationsinvolvedinpreparationofC-rings,U-bend,bent-beam,andtensionspecimensarediscussedinotherASTMstandards.1.4Theactualstressintestspecimensremovedfromweldmentsisnotpreciselyknownbecauseitdependsuponthelevelofresidualstressfromtheweldingoperationcombinedwiththeappliedstress.AmethodfordeterminingthemagnitudeanddirectionofresidualstresswhichmaybeapplicabletoweldmentisdescribedinTestMethodE837.Thereproducibilityoftestresultsishighlydependentonthepreparationoftheweldment,thetypeoftestspecimentested,andtheevaluationcriteriaused.Sufficientreplicationshouldbeemployedtodeterminethelevelofinherentvariabilityinthespecifictestresultsthatisconsistentwiththeobjectivesofthetestprogram.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.(Formorespecificsafetyhazardinformation,seeSection.)
【中国标准分类号】:H25
【国际标准分类号】:25_160_40
【页数】:7P.;A4
【正文语种】:
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