【英文标准名称】:StandardTestMethodsandDefinitionsforMechanicalTestingofSteelProducts
【原文标准名称】:钢制品机械测试的标准试验方法和定义
【标准号】:ASTMA370-2010
【标准状态】:现行
【国别】:
【发布日期】:2010
【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】:A01.13
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:弯曲试验;布氏硬度;却贝冲击试验;延伸;外观断裂转变温度;硬度试验;便携硬度;断面收缩率;洛氏硬度;拉伸强度;拉伸试验;屈服强度;弯曲测试-金属材料;延伸-金属材料;锻件;发电机材料;硬度(压痕)-金属材料;抗冲击(强度);冲击测试-却贝;机械分析/测试;压力容器钢;铁路钢材;七线钢绞线(腱);造船钢材-规范;钢;棒钢;钢螺栓材料;钢链;钢管;薄钢板;钢板/条;圆钢管;钢阀门;钢丝;温度试验-金属/合金;拉力性能/测试-钢;锡轧制品;屈服强度和屈服点
【英文主题词】:bendtest;Brinellhardness;Charpyimpacttest;elongation;FATT(FractureAppearanceTransitionTemperature);hardnesstest;portablehardness;reductionofarea;Rockwellhardness;tensilestrength;tensiontest;yieldstrength;Bendtesting-
【摘要】:Ductilevs.BrittleBehavior8212;Body-centered-cubicorferriticalloysexhibitasignificanttransitioninbehaviorwhenimpacttestedoverarangeoftemperatures.Attemperaturesabovetransition,impactspecimensfracturebyaductile(usuallymicrovoidcoalescence)mechanism,absorbingrelativelylargeamountsofenergy.Atlowertemperatures,theyfractureinabrittle(usuallycleavage)mannerabsorbingappreciablylessenergy.Withinthetransitionrange,thefracturewillgenerallybeamixtureofareasofductilefractureandbrittlefracture.Thetemperaturerangeofthetransitionfromonetypeofbehaviortotheothervariesaccordingtothematerialbeingtested.Thistransitionbehaviormaybedefinedinvariouswaysforspecificationpurposes.Thespecificationmayrequireaminimumtestresultforabsorbedenergy,fractureappearance,lateralexpansion,oracombinationthereof,ataspecifiedtesttemperature.Thespecificationmayrequirethedeterminationofthetransitiontemperatureatwhicheithertheabsorbedenergyorfractureappearanceattainsaspecifiedlevelwhentestingisperformedoverarangeoftemperatures.Alternativelythespecificationmayrequirethedeterminationofthefractureappearancetransitiontemperature(FATTn)asthetemperatureatwhichtherequiredminimumpercentageofshearfracture(n)isobtained.FurtherinformationonthesignificanceofimpacttestingappearsinAnnexA5.1.1Thesetestmethodscoverproceduresanddefinitionsforthemechanicaltestingofsteels,stainlesssteels,andrelatedalloys.Thevariousmechanicaltestshereindescribedareusedtodeterminepropertiesrequiredintheproductspecifications.Variationsintestingmethodsaretobeavoided,andstandardmethodsoftestingaretobefollowedtoobtainreproducibleandcomparableresults.Inthosecasesinwhichthetestingrequirementsforcertainproductsareuniqueoratvariancewiththesegeneralprocedures,theproductspecificationtestingrequirementsshallcontrol.
【中国标准分类号】:H22
【国际标准分类号】:77_040_10;77_140_01
【页数】:47P.;A4
【正文语种】: