抗H_2S腐蚀压力容器用埋弧焊烧结焊剂的研制

6H2S1,2(1.,110142;2.,110023):,Al2O3-CaF2-MgO-SiO2-MnO-TiO2H2S,,H2S1,,,;(,%)0.035%,0.008%,,,,:;;;:TG423:A:0253-360X(2008)05-0097-040,,H2S,,,,,,,[1]H2S,,,11.1,,,,,[2,3]Al2O3-CaF2-MgO-SiO2-MnO-TiO2,,,[4],,2.02.51.2,Mn,Mn,,Mn,H2SMn(,%)0.8%1.5%Si,,,Si0.50%C,,3%%B,%29520085TRANSACTIONSOFTHECHINAWELDINGINSTITUTIONVol.29No.5May2008:2007-0-29C0.00.080.0010.006%TiB,,,Ti0.002%0.015%0.02%,;0.05%,,0.025%0.045%S,P,,,S0.01%,P0.015%[5,6]1.3,11(,%)Table1PrescriptionoffluxAl2O3CaF2MgOSiO2MnOTiO218232126273211160915216MnR,450mm150mm25mm,,2MZ1000,:450A,30V,28mΠh2(,%)Table2ComponentsofweldingwireCMnSiNiMoSPTiBCuFe10.051.640.150.20.250.0020.0150.080.00160.220.071.350.140.20.220.00160.00160.070.00150.2GB22876;GB210680(V)HRC150H2S,,,H2S,2233.13,4,3Table3MechenicalpropertiesofdepositedmetalRmΠMPaReLΠMPaA(%)Z(%)1540.84463.8825.5474.82267561125464-20(AKVΠJ)Table4Impacttoughnessofdepositedmetalat-203566555,1,182.5J3.25,HRC22,H2S5(HRC)Table5Hardnessofdepositedmetal1211214291131211481251118611.51210.6133.36,1Mn,,Mn,,TBS(),,[]982912411841918218182182.271191021121101076,C,S,P,C,S,P,O,NO,N,1,0.035%,0.008%,,,,,,[8]6(,%)Table6ChemicalcompositionsofdepositedmetalCTiMnMoSPBCuSi1#0.0650.00181.210.250.00770.0090.30.242#0.0520.00170.870.230.00840.0100.270.273.4121342,,,,,11Fig.1AppearanceofmacroscopicsectionoffluxmatchingwithNo.1weldingwireFfffxN32Fig13AppearanceofmacroscopicsectionoffluxmatchingwithNo.2weldingwire42Fig14AppearanceofmicrocosmicsectionoffluxmatchingwithNo.2weldingwire,[9]1,,4,,,,,,5,:H2S9921ig.2Appearanceomicrocosmicsectionolumatchingwitho.1weldingwire24(1)H2S,Al2O3-CaF2-MgO-SiO2-MnO-TiO2,2.02.5(2),1,182.5J,H2S(3)1,,;0.035%,0.008%,,,,;C,SP,(4),,1,;,,,2,,,:[1],,.SJ431[J].,2007(5):36-38.[2]KanjilalP,MajumdarSK,PalTK.Predictionofsubmergedarcweld-metalcompositionfromfluxingredientswiththehelpofstatisticaldesignofmixtureexperiment[J].ScandinavianJournalofMetallurgy,2004,33(3):146-159.[3].X80[J].,2006,27(10):29-32.[4].16MnDR[J].,2003(5):38-39.[5].[M].:,1989.[6],,.[M].:,1987.[7]DallamCB,LiuS,OlsonDL.Fluxcompositiondependenceofmi2crostructureandtoughnessofsubmergedarcHSLAweldments[J].WeldingResearch,1985,5:121-124.[8]EagarTW.Sourceofweldmetaloxygencontaminationduringsubmergedarcwelding[J].WeldingJournal,1978,57(3):76-80.[9]HoneycombeWK.[M].,.:,1985.:,,1979,7Email:[e-mail][96][2]SpanosG,FondaRW,VandermeerRA,etal.Microstructuralcha2ngesinHSLA-100steelthermallycycledtosimulatetheheat-af2fectedzoneduringwelding[J].MetallurgicalandMaterialsTransac2tions,1995,26A:3277-3293.[3].[M].:,2004.[4],,,.X80[J].,2005,26(8):69-72.[5].[M].:,1999.[6],,,.[J].,2007,19(1):106-110.[7],,,.[M].:,1999.[8]Yukio,Tomita,Toshiak,etal.Developmentof590MPaclasshightensilestrengthsteelwithsuperiorHAZtoughnessbycopperprecipita2tion[J].ISIJInternational,1994,34(10):836-842.[9],,,.[C]ΠΠ,:2002:85-90.:,,1975,,4Email:[e-mail]10029Guilian2(1.SchoolofMaterialsScienceandEngineering,DalianUniersityofTechnology,Dalian116024,Liaoning,China;2.Re2searchandDevelopmentCenter,WuhanIron&Steel(Group)Cor2poration,Wuhan430080,China).p93-96,100Abstract:Theexperimentswerecarriedoutuponthedeter2minationofSH2CCTdiagramsandthecharacteristicsofmicrostruc2turesandpropertiesinsimulatedcoarsegrainheat2affectedzone(CGHAZ)ofhotcontinuouslyrolledcopper2bearingsteelundersin2gleanddoubleweldingthermalcyclesusingthermalsimulation.TheresultsshowthatwiththehelpofSH-CCTdiagramofcopper2bear2ingsteel,itisproposedtochooset8Π5rangingfrom7sto35sduringwelding.Thecopper2bearingsteelhasanarrowrangeofheat2inputandbrittlementiseasytohappenintheregionofCGHAZwithhigherheat2input.Granularbainitetransformedfromausteniteleadstobrit2tlement.Softeningstartswhent8Π5ismorethan7s.Thedissolutionof-Cu,coarselathbainiteandmoreferritecausesoftening.Moreover,theimpacttoughnessdecreasesdramaticallyandobviousbrittlementhappensintheintercriticalregionofCGHAZ.Thereasonispearliteformedontheinterfaceoforiginalausteniteandcoarsegranularbainite,whichcanreducetheimpacttoughness.Keywords:copper2bearingage2hardeningsteel;coarsegrainheat2affectedzone;SH-CCT;softening;brittlementSubmerged2arcweldingagglomeratedfluxforpressurevesselofanti2H2ScorrosionZONGLin1,WANGZongjie2(1.SchoolofMechanicalEngineering,ShenyangInstituteofChemicalTechnolo2gy,Shenyang110142,China;2.SchoolofMaterialsandScienceEngineering,ShenyangUniversityofTechnology,Shenyang110023,China).p97-100Abstract:Throughanalyzingslagsystem,alkalinityandchemicalcompositionsofthedepositedmetal,asubmerged2arcweldingagglomeratedfluxforpressurevesselofanti2H2ScorrosionwithAl2O3-CaF2-MgO-SiO2-MnO-TiO2fluorideandalkalinetypeslagsystemwasdeveloped.Theexperimentalresultsindicatethatagglomeratedfluxmatchedtwokindsofweldingwiremadeinin2stituteofmetalresearchchineseacademyofsciencescanbothpro2ducehightensilestrengthandlowtemperatureimpacttoughnessandgoodpropertiesoftheresistancetoH2Scorrosion.Formatchingthe1#weldingwire,theweldmetalhavearelativelylargecomponentofMn,bringsdownthetransformationtemperature,acicularfer2riteincreasesintheweldmetal.Thereby,theweldedmetalhavehigherlow2t