ASTM E21-2005 金属材料高温抗拉试验的标准试验方法

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【英文标准名称】:StandardTestMethodsforElevatedTemperatureTensionTestsofMetallicMaterials
【原文标准名称】:金属材料高温抗拉试验的标准试验方法
【标准号】:ASTME21-2005
【标准状态】:现行
【国别】:
【发布日期】:2005
【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】:抗拉试验;材料;机械试验;试验;金属;热试验;金属的
【英文主题词】:
【摘要】:Theelevated-temperaturetensiontestgivesausefulestimateoftheabilityofmetalstowithstandtheapplicationofappliedtensileforces.Usingestablishedandconventionalrelationshipsitcanbeusedtogivesomeindicationofprobablebehaviorunderothersimplestatesofstress,suchascompression,shear,etc.Theductilityvaluesgiveacomparativemeasureofthecapacityofdifferentmaterialstodeformlocallywithoutcrackingandthustoaccommodatealocalstressconcentrationoroverstress;however,quantitativerelationshipsbetweentensileductilityandtheeffectofstressconcentrationsatelevatedtemperaturearenotuniversallyvalid.Asimilarcomparativerelationshipexistsbetweentensileductilityandstrain-controlled,low-cyclefatiguelifeundersimplestatesofstress.Theresultsofthesetensiontestscanbeconsideredasonlyaquestionablecomparativemeasureofthestrengthandductilityforservicetimesofthousandsofhours.Therefore,theprincipalusefulnessoftheelevated-temperaturetensiontestistoassurethatthetestedmaterialissimilartoreferencematerialwhenothermeasuressuchaschemicalcompositionandmicrostructurealsoshowthetwomaterialsaresimilar.1.1Thesetestmethodscoverprocedureandequipmentforthedeterminationoftensilestrength,yieldstrength,elongation,andreductionofareaofmetallicmaterialsatelevatedtemperatures.1.2Determinationofmodulusofelasticityandproportionallimitarenotincluded.1.3Tensiontestsunderconditionsofrapidheatingorrapidstrainratesarenotincluded.1.4ThevaluesstatedinSIunitsaretoberegardedasthestandard.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:H23
【国际标准分类号】:
【页数】:8P.;A4
【正文语种】: