1,2,1,1,11.1140092.114021:8mm2mmX65。8mm2mm8mm8mm2mm。::TG162.8;TM930.115:A:1674-5124(2011)06-0021-03EffectofdifferentpendulumstrikingedgeoncharpyimpacttestresultsforpipelinesteelYUXiu-e1DAIWen-ke2SUNShao-guang1YANGCheng-bo1WANGChao-yi11.TechnologyCeneterofAngangSteelCompanyLimitedAnshan114009China2.QualityInspectionCenterofAngangSteelCompanyLimitedAnshan114021ChinaAbstract:CharpyimpacttestofX65pipelinesteelwereperformedwith8mmand2mmpendulumstrikingedgePTEbydecreasingtemperatureandtheresultswereanalyzedinordertounderstandtheeffectofdifferentpendulumstrikingedgeontheimpactabsorbedenergy.Theresultsindicatedthatinthecaseofhigherimpactabsorbedenergytheimpactabsorbedenergyobtainedwith8mmpendulumstrikingedgeishigherthanthatobtainedwith2mmpendulumstrikingedge.Theimpactabsorbedenergyobtainedwithbothpendulumstrikingedgeswerereducedgraduallywithdecreasingtesttemperatureanditdecreasemorefor8mmpendulumstrikingedge.Inthecaseoflowerabsorbedenergythedifferenceoftheenergyobtainedfromtwopendulumstrikingedgebecomesmaller.Theductile-brittletransitiontemperatureDBTTtestedwith8mmpendulumstrikingedgeishigherthanthattestedwith2mmpendulumstrikingedge.Keywords:pipelinesteeldecreasedtemperatureimpactabsorbedenergyductile-brittletransitiontemperaturependulumstrikingedge:2010-12-31;:2011-03-08:1965-。0[1]。。GB/T229-2007《》[2]8mmCHINAMEASUREMENT&TESTVol.37No.6November2011376201111201111。。11.1X65GB/T229-200710mm×10mm×55mmV,。1.22mm8mm。1.36。。2112。33.11-60℃8mmKV82mmKV238J。KV8KV2、3[3]。。8mm2mm8mm2mm。18mm2mm0.22mm。KV8KV2。/℃KV8/JKV2/JKV8/JKV2/JKV8KV2/J3433192041331935331538302307333289-6032329932728938324280272216-7027625427425222273286300260-8025324726724819248236187196-90230156195175201681747939-100542353361625476921-110543753361837493225-120534244291546191(a)(b)(a)8mm(b)2mm120℃(a)(b)(a)2mm(b)8mm2-90℃223763.2。GB/T229-200750%。38mmTt82mmTt2KV8KV8KV250%[4]。418mmKV82mmKV2。2KV8KV2。3[5-6]。48mmKV82mmKV2。KV8。KV2。[1].[M].2006.[2]GB/T229—2007[S].2007.[3].[J].20051142-44.[4].[J].20051042-44.[5].[J].200835248-49.[6].、[J].20096105-107.40035030025020015010050020-60-70-80-90-100-110-120KV8KV2/℃/J3!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!《》,。,、、,、。《》、;;;;。。《》,12,72,,:82-424。《》16(210mm×285mm),26。,,。:72:100071/:010-63810195;63851806《()》2012《》23