ASTM金属材料夏比V型缺口冲击试验方法介绍

ASTMV(,200437):ASTMV,GB/T229-1994:ASTM;;:T265:B:100124012(2004)0720367205BRIEFINTRODUCTIONTOSTANDARDFORNOTCHEDBARIMPACTTESTINGOFASTMWANGBin(ShanghaiResearchInstituteofMaterials,Shanghai200437,China)Abstract:BasicprincipleandcontentinstandardASTME23202StandardTestMethodsforNotchedBarImpacttestingofMetallicMaterialsandASTMA370-03aStandardTestMethodsandDefinitionsforMechanicalTestingofSteelProductsweredescribedinthispaper.VarioustestmethodsbetweenASTMstandardandGB/T229-1994werecompared.Keywords:ASTM;Impacttesting;StandardVGB/T229-1994(ISO1481983),V,ASTMASTMASTME23-02ASTMA370-03a,ASTME23-02,-196(Charpy)(Izod),:2004203226:(19632),,,V,VASTMA370-03aASTMV,ASTMA370-03aASTME23-02V,GB/T229-19941ASTMV1.1763407200472PTCA(PARTA:PHYSICALTESTING)Vol.40No.7Jul.2004,,,,(),,3,,812V1,11V(mm)Fig.1Charpyimpacttestspecimen1Tab.1PermissiblevariationsofCharpyimpacttestspecimen90210.025mm90100.025mm0.075mm2m-2.5mm1mm4m11mm,,80%,7.5mm,6.7mm,5mm,3.3mm2.5mm,V,,2A,A28mm;B,B13.5mm;T;t,t1/2T,,15mm2Fig.2Tubularimpactspecimencontainingoriginalouterdiametersurface,1.2ASTME23-02ASTMA370-03a(1)150mm40,,(31000),33(mm)Fig.3SpecimensupportanvilandCharpystrikingtup(2)0.25%(3)0.2%014%()(4)0.75%(5):300400J,,4.95.8m/s:(1)863:ASTMV(2),(,),,,(3),:,,,5(1),6,5%10%,6,(),11,100,0.4%,0.4%,,50100,1.31032,(),:(1)1,,(2),,25mm,25mm,,,5min(3),,30min(4),1.4ASTM(1)4V,,(2),(,),,,,(),(3),5s,,,4V(mm)Fig.4CenteringTongsforV2notchCharpyspeciments(4),,,(5),,()1.5,ASTMA370-03a,,1J,5%,0.025mm,ASTME23-02:(1)(2),,80%,(3)80%,,,(4),,(5),,,ASTM963:ASTMV80%,,ASTMA370,80%,1.6ASTMA370,,(1)3(2)(3)2/3,,,,2,22VTab.2ConversiontableofcharpyV2notchtestacceptancecriteriaforvarioussub2sizespecimens/mm/J10105448413427222018161410107.5-353026-16-1412117106.7-3127231815-1211-7105-24-161411-8875103.3-161411-775543102.5141211875544331.7ASTMA370,,(1),015(2),,,2(3)(),3(4),(5),12,,,1.8,,ASTMA370:(1)100%(2)50%(3)100%0%50%(4)1.9,ASTME23,29,5,ASTME691,33Tab.3Precisiontest/J/J15.996.22.48.32.79.22ASTMGB/T229,ASTM,4ASTM073:ASTMV4ASTMTab.4StandardcontrastofimpacttestinASTMandGB/T229-1994V/()/mm/m/mm/mm/mm/mm/mm/mmASTM4510.250.0252-20.025100.075100.07555-2.527.514510.250.0251.6()80.05-100.05100.10550.6027.50.30R/mmR/mm/mm/()/ms-1ASTM81400.051024.95.822.511.540+0.51125.05.5///min/minASTM1032(A370)153010352520ASTM1.51J5%0.025mm32/3,,1%3,70%ASTM,100%50%100%0%50%,:6270%1ETTn:2(n)FATTn:2(n%)LETTn:2(n%):[1]ASTMA370-03a,StandardTestMethodsandDefini2tionsforMechanicalTestingofSteelProducts[S].[2]ASTME23-02,StandardTestMethodsforNotchedBarImpactTestingofMetallicMaterials[S].[3]GB/T229-1994,[S].[4]GB/T12778-1991,[S].173:ASTMV