经济型X65级管线钢热轧卷板的研制

X65,,,,(,114009):X65,CNb,,(HTP),,,,,:X65;;:TG115:B:1001-3938(2008)05-0045-050,,,7%[1],X65X70X65C-Mn-Nb-V(Mo),TMCP,,,(HTP)X65,CNb,Cr(HTP),X6512008X65,131X65%w(C)w(Si)w(Mn)w(P)w(S)w(Cu)0.100.351.650.0200.0200.2w(Als)w(V)w(Mo)w(Cr)w(Ni)w(Ti)0.070.080.10.20.30.04w(N)w(Nb)w(Ca)w(B)Pcm0.0120.090.0060.00050.21:Pcm=C+Si/30+(Mn+Cu+Cr)/20+Ni/60+Mo/15+V/10+5B2X65Rt0.5/MPaRm/MPaRt0.5/RmA50mm/%180HV104786005507580.9226D=2a2303X650AkV/JSA/%SA/%71948575852TMCPX65C-Mn-Nb-V-Ti(Mo),C,Mn,Nb,VMoC,Mn,VMo[2-4],Nb,,Nb(C,N),,Nb,,X65C-Mn-Cr-Nb-Ti,C,Nb,Cr,MoC:,,5431520089©1994-2008ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.:,C,Mn,Mn,Mn,,,,(HIC),MnNb:,Nb[5],Nb,NbX65,NbCr:Cr,,NbV[6]Ti:0.015%0.020%Ti,N,TiN,,,TiN,[3]P,S:P,S,,P,S,,3X65113.1,C0.10%,:w(S)0.006%,w(P)0.015%,w(N)0.006%2150ASP170mm,,3.2,X65TMCP,2150ASPHTP,,,;HTP,,,,,44.1X65,44,,C(w(C)0.08%),S(w(S)0.006%),Nb(w(Nb)0.06%)CrTi,,,4X65%w(C)w(Si)w(Mn)w(P)w(S)0.060.200.0200.008w(Als)w(Cr)w(Ti)w(N)w(Nb)0.0390.00500.104.2300,22,X65,,,AkV,X65,33,X65-80,,Nb6420089©1994-2008ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.:X65©1994-2008ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(HTP),Nb,,,,,,(TMCP);0.51.0,,;,1.04X655.2Quanta400(DWTT),55,,;,,100%,,5DWTT8420089©1994-2008ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(C,N)NbTi,,,[7]66(1),CNb,,,X65C,S,P,Nb,Pcm(2),,(HTP),X65(3),,,,,,(4)(HTP),Mo,V,,,,,,:[1],,,.X80[J].,2005,27(1):78-81.[2],,.[M].:,2006.[3]DUTTAB,SELLERSCM.EffectofCompositionandProcessVariablesonNb(C,N)PrecipitationinNiobiumMicroalloyedAustenite[J].MaterSciTech,1987,3(3):197-206.[4]MEDINASF,MANCILLAJE.StaticRecrystallizationModelingofHotDeformedSteelsContainingSeveralAl2loyingElements[J].ISIJInt,1996,36(8):1070-1076.[5],,.[J].,2004(4):22-28.[6],,.[J].,2004(4):13-17.[7]DOUGLASSUS.[J]..,2001,9(2):43-51.:(1979-),,,,,:2008-05-07:94315:X65©1994-2008ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.:SSAWpipe;yieldstrength;tensilestrength;rectanglespecimen;roundbarspecimen;extendedringspecimenTheFiniteElementSimulationStudyofRollingFormingProcessZHAOJin2long,LIUJi2yingAbstractID:100123938(2008)05200292EAAbstract:Thereexistdifferentrollingformingprocessmethodsindesignofrollformingprocesswhichdividedintoconstantradiusmethodandcon2stantlengthmethod.Selectionofrollingformingprocessmethodmainlydependsondesigner’sexperience,andatpresentlackstheoryinstruction.Thisarticlesetupsimulationmodelofrollingformingprocessbymeansoffiniteelementanalysissoftware(MSC,MARC),andcorrectnessofmodelthesimulationresultiscorrespondingtoexperimentdata.DifferentrollformingcalibrationmethodsweresimulatedandcomparedbyFEAmodel.Thedifferencesofthespring-back,strainandthestrainenergyindifferentmethodsaredisclosed.Theresultisusefulfortheengineeringapplica2tion.Keywords:finiteelement;rollforming;spring2back;deformationenergy;constantradiusmethod;constantlengthmethodWeldabilityandProcessofIncoloy825Alloy+X65CompoundedPipeYANGXuAbstractID:100123938(2008)05200332EAAbstract:Thisarticleanalyzedtheweldabilityofincoloy825alloy+X65compoundedpipefromthesidesofalloychemicalcomposition,mechanicalandphysicalproperty.Italsocarriedoutweldingprocesstestinincoloy825alloy+X65compoundedpipe.Afterwelding,thetestresultsofme2chanicalpropertyandsimulationcorrosionenvironmentweightlessnessshowedthatweldingjointerofincoloy825alloy+X65compoundedpipewithgoodperformanceandthiscanbeappliedintothedevelopmentofcorrosiveoilgasfield.Keywords:Incoloy825alloy+X65compoundedpipe;weldability;weldingprocessTheWeldingofX70GradePipewithLargeDiameterunder-30LowTemperatureEnvironmentYINChang2hua,QILi2chun,ZHANGChun2heAbstractID:100123938(2008)05200362EAAbstract:TheweldabilityofX70gradesteelisanalyzedindetail,andalsotwokindsoffeasibleweldingtestsunder-30lowtemperatureenvi2ronmentareconducted,accordingtotheresultofgeneralmechanicaltest,metallographicexaminationandhardnesstest,twofeasibleweldingproce2duresandrelevantweldingparameter,aswellastechniquemeasuresunder-30lowtemperatureenvironmentareputforward.Keywords:-30lowtemperatureenvironment;X70gradepipe;weldingprocedureResearchonVisibleSpectroscopicAnalysisMethodofNiContentinWeldingConsumablesandWeldLIUPing,YANGJun2hong,LIUHao2xinAbstractID:100123938(2008)05200412EAAbstract:Thevisiblespectrumofnickelinalloyweldingconsumableandweldisanalyzedanddeterminedbymeansofdigitalprocessingtechnolo2gy,theresearchweremadeondigital