ASTM E1450-2003 液氦中结构合金抗拉试验的标准试验方法
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【英文标准名称】:StandardTestMethodforTensionTestingofStructuralAlloysinLiquidHelium
【原文标准名称】:液氦中结构合金抗拉试验的标准试验方法
【标准号】:ASTME1450-2003
【标准状态】:现行
【国别】:
【发布日期】:2003
【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】:E28.04
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:试验;合金;材料强度;建筑材料
【英文主题词】:adiabaticheating;cryogenicproperties(ofmaterials);cryostats;discontinuousyielding;liquidhelium;lowtemperaturetests;mechanicalproperties(ofmaterials);tensileproperties;tensiontests
【摘要】:1.1Thistestmethoddescribesproceduresforthetensiontestingofstructuralalloysinliquidhelium.TheformatissimilartothatofotherASTMtensionteststandards,butthecontentsincludemodificationsforcryogenictestingwhichrequiresspecialapparatus,smallerspecimens,andconcernforserratedyielding,adiabaticheating,andstrain-rateeffects.1.2Toconductatensiontestbythisstandard,thespecimeninacryostatisfullysubmergedinnormalliquidhelium(HeI)andtestedusingcrossheaddisplacementcontrolatanominalstrainrateof10-3s-1orless.Testsusingloadcontrolorhighstrainratesarenotconsidered.1.3Thisstandardspecifiesmethodsforthemeasurementofyieldstrength,tensilestrength,elongation,andreductionofarea.ThedeterminationoftheelasticmodulusistreatedinTestMethodE111.Note18212;Theboilingpointofnormalliquidhelium(HeI)atsealevelis4.2K(-452.1176;For7.6176;R).Itdecreaseswithgeographicelevationandis4.0K(-452.5176;For7.2176;R)attheNationalInstituteofStandardsandTechnologyinColorado,1677m(5500ft)abovesealevel.Inthisstandardthetemperatureisdesignated4K.1.4ValuesstatedinSIunitsaretreatedasprimary.ValuesstatedinU.S.customaryunitsaretreatedassecondary.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.SeeSection5.
【中国标准分类号】:H22
【国际标准分类号】:
【页数】:9P.;A4
【正文语种】:
【原文标准名称】:液氦中结构合金抗拉试验的标准试验方法
【标准号】:ASTME1450-2003
【标准状态】:现行
【国别】:
【发布日期】:2003
【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】:E28.04
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:试验;合金;材料强度;建筑材料
【英文主题词】:adiabaticheating;cryogenicproperties(ofmaterials);cryostats;discontinuousyielding;liquidhelium;lowtemperaturetests;mechanicalproperties(ofmaterials);tensileproperties;tensiontests
【摘要】:1.1Thistestmethoddescribesproceduresforthetensiontestingofstructuralalloysinliquidhelium.TheformatissimilartothatofotherASTMtensionteststandards,butthecontentsincludemodificationsforcryogenictestingwhichrequiresspecialapparatus,smallerspecimens,andconcernforserratedyielding,adiabaticheating,andstrain-rateeffects.1.2Toconductatensiontestbythisstandard,thespecimeninacryostatisfullysubmergedinnormalliquidhelium(HeI)andtestedusingcrossheaddisplacementcontrolatanominalstrainrateof10-3s-1orless.Testsusingloadcontrolorhighstrainratesarenotconsidered.1.3Thisstandardspecifiesmethodsforthemeasurementofyieldstrength,tensilestrength,elongation,andreductionofarea.ThedeterminationoftheelasticmodulusistreatedinTestMethodE111.Note18212;Theboilingpointofnormalliquidhelium(HeI)atsealevelis4.2K(-452.1176;For7.6176;R).Itdecreaseswithgeographicelevationandis4.0K(-452.5176;For7.2176;R)attheNationalInstituteofStandardsandTechnologyinColorado,1677m(5500ft)abovesealevel.Inthisstandardthetemperatureisdesignated4K.1.4ValuesstatedinSIunitsaretreatedasprimary.ValuesstatedinU.S.customaryunitsaretreatedassecondary.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.SeeSection5.
【中国标准分类号】:H22
【国际标准分类号】:
【页数】:9P.;A4
【正文语种】:
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