25120042TRANSACTIONSOFMATERIALSANDHEATTREATMENTVol.25No.1February2004P1,1,1,1,2(11,030024;21,030003):HRTEMTEMSEM00Cr18Ni5Mo3Si2P16Mn,00Cr18Ni5Mo3Si2P16Mn16Mn,180;,;;:;;;:TG14211;TG456:A:100926264(2004)0120046203:2003207215;:2003211205:(20011019):(1963),,,,;1,30;E2mail:youkun3@public.ty.sx.cn,,,,,,HRTEMTEMSEMA2FP,120mm16Mn,3mm00Cr18Ni5Mo3Si2(wt%)1,16MnP00Cr18Ni5Mo3Si2,,,Instron-1186,NJ-5000TEM,,H-800JEM-2010KYKY-1000BTN-54001(wt%)Table1Chemicalcompositionofthestudiedsteelplates(wt%)SteelplateCSiMnPSCrNiMo00Cr18Ni5Mo3Si216Mn0102701151162013112511301028010501004010519148-5176-2170-2211,,,GB-T-6396-95,,23mm23mm350mm,2,180,2Table2MechanicalpropertiesofthecladandbaseplateSteelplateStandardthicknessPmmsPMPabPMPa5P(%)Intergranularcorrosion00Cr18Ni5Mo3Si2P16Mn3+2032549064021No16Mn2031048019-212100Cr18Ni5Mo3Si216Mn,,[1]2:(1),A+F,;(2)20,1Fig11Morphologyofinterfaceregionofthecladsteelplate200Cr18Ni5Mo3Si2P16MnFig12Morphologyofinterfaceof00Cr18Ni5Mo3Si2P16Mncladplate,,,;,,,,,[2,3]213,3m(1),,(),,,,16MnP00Cr18Ni5Mo3Si2TEMHRTEM,,100nm,(3);4,,,23m,,,,,,3TEMFig13TEMimageoftheinterfaceandSADpattern4Fig14HRTEMimageoftheinterface21400Cr18Ni5Mo3Si2P16Mn741:P,5a),,,5b)Cr,,,5(a)Cr(b)Fig15Morphologyoftheeddyzone(a)anddistributionofchromiumcontentofthesubstrateandcladdingplateintheeddyzone(b),,,,,,,,[4](),3(1)00Cr18Ni5Mo3Si2P16Mn,,180,(2)00Cr18Ni5Mo3Si2P16Mn,,(3)1,.[J].-,1998,(8):9.2HarmmerschmidtM,KreyeH.Microstructurebondingmechanisminexplosiveweldingshockwavesandhigh2strainratephenomenainmetal[J].ScriptaMetall,1972,6:915.3LiuG,LuJ,LuK.Surfacenanocrystallizationof316Lstainlesssteelinducedbyultrasonicshotpeening[J].MaterSciEng,2000,91A:286.4YangY,XinmingZ,ZhenghuaL,etal.AdiabaticshearbandonthetitaniumintheTiPmildsteelexplosivecladdinginterface[J].ActaMater,1996,44:561.5,,.[J].,2000,36(3):300.8425capacitiesofZL401alloyweredependentonstrainamplitudesandfrequencies,andincreasedwiththeincreasingofthetemperature.Thereversechangetendencyofdampingcapacitywithfrequencywasobservedforlowtemperaturesandhightemperatures.Asthevibratingfrequencydecreasedandtemperatureincreased,therealpartofcomplexmodulusofZL401alloyincreased.ItisconcludedthatthedampingcapacitiesofZL401alloyisresultfromthesuperpositionofinterfacedampinganddislocationdamping,thedampingcapacitiesatambienttemperaturewasowedtodislocationdamping,whilethedampingcapacitiesathightemperaturesisattributedtointerfacedamping.Keywords:ZL401alloy;ageing;dampingbehavior;modulusofelasticityTime2Temperature2HardnessKineticsRelationofTemperingSteelsZHANGZhan2ping1,QIYu2hong1,DELAGNESDenis2,BERNHARTGerard2(1.InstituteofMetalandTechnology,DalianMaritimeUniversity,Dalian116026,China;2.ResearchCentreonTools,MaterialsandProcesses(CROMeP),EcoledesMinesdAlbi2Carmaux,81013AlbiCTcedex09,France)TransMaterHeatTreat,2004,25(1):4145,fig5,table1,ref18.Abstract:Theevolutionofmicrostructureandhardnessof55NiCrMoV7steeltemperedat100to700for90s-665hwasinvestigated.Aconceptoftemperingdegreeisdefinedonthebasisofhardnessofthesteelasquenched,astemperedandasannealed,andakineticslawintheformofJohnson2Mehl2Avramirelationisproposed,whichcanbeusedtodescribeandexplaintheevolutionofhardnessandmicrostructureofthesteelwithoutsecondhardening.Basedonthiskineticslawmodel,theHollomon2Jafferelationisdeduced.Keywords:toolsteel;tempering;kinetics;temperingdegreeAnalysisontheInterfaceStructureofCladSteelPlateProducedbyExplosiveWeldingHULan2qing1,WEIYing2hui1,XUBing2she1,HUANGYuan1,LIXin2tian2(1.CollegeofMaterialsScienceandEngineering,TaiyuanUniversityofTechnology,Taiyuan030024,China;2.TaiyuanSteel&IronCo.Ltd,Taiyuan030003,China)TransMaterHeatTreat,2004,25(1):4648,fig5,table2,ref5.Abstract:Themicrostructureoftheinterfaceandpropertiesof00Cr18Ni5Mo3Si2P16MncladsteelplateproducedbyexplosiveweldingwereinvestigatedbymeansofHRTEM,TEMandSEM.Theresultsshowthatthestrengthof00Cr18Ni5Mo3Si2P16Mncladsteelplateissuperiortothatofthesubstrateplate,andthecladplatedoesnotsplitfor180torsiontest.Themorphologyofinterfaceregionofthecladsteelplateisofsine2waveformandthefinegrainregionisformednearbytheinterface.Thewhite2brightlayerobservedalongtheinterfaceconsistsofstructureofnanocrystallineandamorphousformedduetorapidcoolingunderadiabaticconditionandsevereplasticdeformation.Theresultindicatesthatnanocrystallineandamorphousfilmcanbefabricatedbyexplosivewelding.Keywords:explosivewelding;interface;nanocryctallinestructure;amorphousStudyonArcIonPlatingof1Cr18Ni9TiatLowerTemperatureon45steelHOUWen2yi,LIJun2hu2,ZHAOXing2guo1,LIANGWei1(1.CollegeofMaterialsScienceandEngineering,TaiyuanUniversityofTechnology,Taiyuan030024,China;2.TaiyuanIronandSteel(Group)Co.Ltd,Taiyuan030003,China)TransMaterHeatTreat,2004,25(1):4951,fig3,table1,ref6.Abstract:Themicrostructuresofionplatingof1Cr18Ni9Tionsteel45(thebasiccomponentofthemisthesame)attemperatureslowerthan600wereanalyzedbySEM.Theresultsshowthattheionplatinglayeriscomposedofdepositlayerandtransitionlayer.Thetransitionlayerisabout12m,inwhichaquasi2metallurgycombinationisbuiltupbetweentheplatinglayerandsubstrate.Thedepositrat