ASTM G49-1985(2005) 直接拉伸应力腐蚀试样的制备和使用
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【英文标准名称】:StandardPracticeforPreparationandUseofDirectTensionStress-CorrosionTestSpecimens
【原文标准名称】:直接拉伸应力腐蚀试样的制备和使用
【标准号】:ASTMG49-1985(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】:工艺;准备;试样;腐蚀;应力腐蚀;抗拉强度;使用说明;金属;磨损
【英文主题词】:constantload;constantstrain;quantitativestress;stress-corrosioncracking;stress-corrosiontestspecimen;tensionspecimens
【摘要】:Axiallyloadedtensionspecimensprovideoneofthemostversatilemethodsofperformingastress-corrosiontestbecauseoftheflexibilitypermittedinthechoiceoftypeandsizeoftestspecimen,stressingprocedures,andrangeofstresslevels.Theuniaxialstresssystemissimple;hence,thistestmethodisoftenusedforstudiesofstress-corrosionmechanisms.Thistypeoftestisamenabletothesimultaneousexposureofunstressedspecimens(noappliedload)withstressedspecimensandsubsequenttensiontestingtodistinguishbetweentheeffectsoftruestresscorrosionandmechanicaloverload(2).AdditionalconsiderationsinregardtothesignificanceofthetestresultsandtheirinterpretationaregiveninSections6and10.Widevariationsintestresultsmaybeobtainedforagivenmaterialandspecimenorientationwithdifferentspecimensizesandstressingprocedures.Thisconsiderationissignificantespeciallyinthestandardizationofatestprocedureforinterlaboratorycomparisonsorqualitycontrol.1.1Thispracticecoversproceduresfordesigning,preparing,andusingASTMstandardtensiontestspecimensforinvestigatingsusceptibilitytostress-corrosioncracking.Axiallyloadedspecimensmaybestressedquantitativelywithequipmentforapplicationofeitheraconstantload,constantstrain,orwithacontinuouslyincreasingstrain.1.2Tensiontestspecimensareadaptablefortestingawidevarietyofproductformsaswellaspartsjoinedbywelding,riveting,orvariousothermethods.1.3Theexposureofspecimensinacorrosiveenvironmentistreatedonlybrieflybecauseotherstandardsarebeingpreparedtodealwiththisaspect.Meanwhile,theinvestigatorisreferredtoPracticesG35,G36,G37,andG44,andtoASTMSpecialTechnicalPublication425().
【中国标准分类号】:H25
【国际标准分类号】:
【页数】:6P.;A4
【正文语种】:
【原文标准名称】:直接拉伸应力腐蚀试样的制备和使用
【标准号】:ASTMG49-1985(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】:工艺;准备;试样;腐蚀;应力腐蚀;抗拉强度;使用说明;金属;磨损
【英文主题词】:constantload;constantstrain;quantitativestress;stress-corrosioncracking;stress-corrosiontestspecimen;tensionspecimens
【摘要】:Axiallyloadedtensionspecimensprovideoneofthemostversatilemethodsofperformingastress-corrosiontestbecauseoftheflexibilitypermittedinthechoiceoftypeandsizeoftestspecimen,stressingprocedures,andrangeofstresslevels.Theuniaxialstresssystemissimple;hence,thistestmethodisoftenusedforstudiesofstress-corrosionmechanisms.Thistypeoftestisamenabletothesimultaneousexposureofunstressedspecimens(noappliedload)withstressedspecimensandsubsequenttensiontestingtodistinguishbetweentheeffectsoftruestresscorrosionandmechanicaloverload(2).AdditionalconsiderationsinregardtothesignificanceofthetestresultsandtheirinterpretationaregiveninSections6and10.Widevariationsintestresultsmaybeobtainedforagivenmaterialandspecimenorientationwithdifferentspecimensizesandstressingprocedures.Thisconsiderationissignificantespeciallyinthestandardizationofatestprocedureforinterlaboratorycomparisonsorqualitycontrol.1.1Thispracticecoversproceduresfordesigning,preparing,andusingASTMstandardtensiontestspecimensforinvestigatingsusceptibilitytostress-corrosioncracking.Axiallyloadedspecimensmaybestressedquantitativelywithequipmentforapplicationofeitheraconstantload,constantstrain,orwithacontinuouslyincreasingstrain.1.2Tensiontestspecimensareadaptablefortestingawidevarietyofproductformsaswellaspartsjoinedbywelding,riveting,orvariousothermethods.1.3Theexposureofspecimensinacorrosiveenvironmentistreatedonlybrieflybecauseotherstandardsarebeingpreparedtodealwiththisaspect.Meanwhile,theinvestigatorisreferredtoPracticesG35,G36,G37,andG44,andtoASTMSpecialTechnicalPublication425().
【中国标准分类号】:H25
【国际标准分类号】:
【页数】:6P.;A4
【正文语种】:
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