我国堆焊技术的发展及展望-任艳艳

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WeldingTechnologyVol.41No.6Jun.2012:2011-11-25:1002-025X(2012)06-0001-041,1,2,1,2,1,2(1.,471003;2.,471003):。、、,,。:;;;:TG455:B0,,。,,。、、,,[1-2]。2050,。60,,。70,、、CO2。80,、。90,。,,[3]。50,、,。1,,。,,,、。1.1、、,,。,(、)、、TIG、、[4]。,,,,,,。,。,、、。1.2··1DOI:10.13846/j.cnki.cn12-1070/tg.2012.06.01141620126。、、[5]。,。,、。Co-Cr-W。、,、,[6]。w(Cr)9%Co-Cr-W,,、、,。、、[7],w(C)2.5%Co-Cr-W。,、。,,,,,[8]。,。,:CrC、WC、NbC,VC、TiC、B[9]。1.3,:、、。,,、。,,,。。1。,,。[10],。、、,。[11]、TIG,,,、。、[12],,PLC,,。,[13],。,,;,[14],,。,,,。,、。2,,。,。、、、1··2WeldingTechnologyVol.41No.6Jun.2012、、[15]。2.1、,[16]。,、,,,,。、,、。、,,。、[17],,D397,。2090,[18]92WC-8Co,,。2。2.2、、、。。、[19]、、,。,,。,。30°90°,,45°60°。30°。90°90°。23。3,,。,,、,。“”“”[21],,,,、,。,,,。2(a)30°(b)90°3··341620126:[1],.[M].:,1999.[2],.[J].,2004,41(2):57-60.[3],,.[J].,2009,60(22):25-27.[4],,.[M].:,2004.[5].[J].,2002,15(4):19-20.[6]SapateSG,RamaRaoAV.Effectofcarbidevolumefractiononerosivewearbehaviourofhardfacingcastirons[J].Wear,2004,256(3):774-786.[7].[D].:,2008.[8],.[C]//,:,1997.[9],.[J].,2002(3):37-38.[10].[J].,2010,(37)6:70-72.[11].、TIG[J].,2010,40(8):90-92.[12],,,.CO2/MAG[J].,2011,43(4):11-13.[13]GrumJ,SlabeJM.Acomparisonoftool-repairmethodsusingCO2lasersurfacingandarcsurfacing[J].AppliedSurfaceScience,2003(208-209):424-431.[14].[J].,2005,18(3):50-52.[15],,,.、[J].,2006,19(3):4-6.[16].[J].,2002,4(9):52-53.[17],.[J].,2006,25(7):75-77.[18].[J].,2003,30(1):33-34.[19],.[J].,2009,27(4):55-58.[20],,.[J].,2009,26(11):2-6.[21],,,.[J].,2006,19(3):9-13.:(1985—),,,:.··,。。,,,。,。,。,,,。,,。:“,,。,,。、,。”!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!4WeldingTechnologyVol.41No.6Jun.2012Ⅰ·、·MAINTOPICS,ABSTRACTS&KEYWORDSDevelopmentandprospectofsurfacingtechnologyinChinaRENYan-yan1,ZHANGGuo-shang1,2,WEIShi-zhong1,2,XULiu-jie1,2(1.CollegeofMaterialScience&Technology,HenanUniversityofScience&Technology,Luoyang471003,Henanpro.,China;2.HenanEngineeringResearchCenterforWearofMaterial,Luoyang471003,Henanpro.,China)P1-4Abstract:Thecourseofsurfacingtechnologydevelopmentwerebrieflyintroduced.TheanalysesondevelopmentstatusofChinasurfacingtechnologyweremadefromsurfacingmethod,surfacingmaterials,surfacingequipmentandotheraspects.Theapplicationofthesurfacingtechnologyinmoldrepairandpressurevesselswereelaborated.TheresultsshowedthatsurfacingtechnologyhadbroadprospectsinChina.Keywords:surfacingtechnology,developmentstatus,moldrepair,pressurevesselsJoiningofWandTi3SiC2ceramicbysparkplasmasinteringYIYao-yong1,XIEHeng2,NIDong-hui3,ZHENGJun-jun3(1.InstituteofWeldingTechnology,GuangdongGeneralResearchInstituteforIndustrialTechnology,Guangzhou510650,Guangdongpro.,China;2.HuizhouUniversity,Huizhou516007,Guangdongpro.,China;3.NationalEngineeringResearchCenterofNear-net-shapeFormingTechnologyforMetallicMaterials,SouthChinaUniversityofTechnology,Guangzhou510640,Guangdongpro.,China)P5-7Abstract:WandTi3SiC2weresuccessfullyjoinedtogetherbysparkplasmasinteringtechnique.Astrongbindinginterfacewithuniformfinegrainsandwithoutsignificantdefectswasobtained,whichpavinganewwayforjoiningceramicsandmetals.MetallurgicalbondingwasobtainedatthejointinterfacebyformingintermediatelayerscomposedofmostlyWCandW2C.Keywords:Ti3SiC2,W,joining,sparkplasmasinteringInsituformationceramicphasereinforcedFe-basedalloycompositecoatingbyPTAZONGLin1,2,LIUZheng-jun2,(1.SchoolofMechanicalEngineering,ShenyangUniversityofChemicalTechnology,Shenyang110142,Liaoningpro.,China;2.SchoolofMaterialScienceandEngineering,ShenyangUniversityofTechnology,Shenyang110023,Liaoningpro.,China)P8-10Abstract:Thein-situceramicphasesreinforcedFe-basedcompositescoatinghadbeenproducedbypreparedhigh-carbonferrochromium,ferrovanadiumandgraphitepoweroncarbonsteelthroughplasmatransferredarcweld-surfacingprocess(PTA).Themicrostructureandpropertieswereinvestigatedbymeansofopticalmicroscopy(op),scanningelectronmicroscopy(SEM),X-raydiffraction(XRD)andmicrohardnessmeter.Theresultsshowedthatthesubstrateandthecoatingformedgoodmetallurgicalbonding.Themicrostructureofcoatingconsistedofmartensite,ferriteandresidualaustenitic,(Fe,Cr,V)7C3andVC.Theprimaryhexagonal(Fe,Cr,V)7C3withlargersizepresenteddispersivelyandevenlydistributedincoating,thefineVCparticleswereirregularshapeorglobular.Themicrohardnessappearedreasonabledistributionfromsubstratetothetop,whichensuredthatthematerialshadgoodabrasivewearresistance.Keywords:PTA,ceramicphase,microstructure,microhardness

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