喷涂工艺条件对超音速火焰喷涂

Cr3C2-NiCr1,2,2,2,2(1.,332005;2.,710049)[]Cr3C2-NiCr,,,,3746L/min,368447L/min,,160mm[];Cr3C2-NiCr;[]TG115.5[]A[]1001-1560(2004)11-0029-03[]2004-07-04[](59676061)0[1],[2],,,,[3],3850mCr3C2-NiCr,,HVOF1Cr3C2-25%NiC,3850m,CHn2000,[4],0.40MPa,0.55MPa,0.250.30MPa,141L/min,11O2/(Lmin-1)C3H8/(Lmin-1)/mm151044.3250.0251044.3170.0351029.6250.0451029.6170.01O2/(Lmin-1)C3H8/(Lmin-1)/mm538244.3250.0638244.3170.0738229.6250.0838229.6170.0952637.0210.01036837.0210.01144745.8210.01244728.1210.01344737.0258.61444737.0161.41544737.0210.0222115,,1618447L/min,37L/min,110mm60mm10mm2,,258.9443.1m/s2/(ms-1)1392.355.1313.3547.52443.166.9316.9703.73372.384.9270.3512.04349.270.1244.6505.25350.985.7269.9467.56340.894.3160.9444.87296.158.8196.0369.42920041137112/(ms-1)8290.351.7222.2339.69320.271.0191.1461.010258.919.1224.4288.311400.5130.5274.2669.312304.740.2219.4347.913286.045.3181.8349.514333.359.3282.0451.015309.962.8204.6403.716315.746.7224.4368.817271.249.9199.2340.618150.866.883.7260.12.11447L/min210mm,,,,3746L/min,,1,9.9514.21,5,,,,,,,,28.145.8L/min,3.1%3.5%1(:447L/min,:210mm)2.22,1,,368447L/min,,447L/min,,,:(1),;(2),,,,,22(:37L/min,:210mm)2.33,0160mm,,160mm,,[5],,160mm,,,,,,,,,,3(:37L/min,:447L/min)2.44,,,,368526L/min,Cr3C2-NiCr30Nov.2004Vol.37No.11MaterialsProtection28.145.8L/min,,,,,,43,,3746L/min,,368447L/min,,447L/min,,,160mm[][1]ThorpeML,RichterHJ.APragmaticAnalysisandCompari2sonoftheHVOFProcess[A].Procof13thITSC[C].USA:OrlandoFlorida,1992.137146.[2],.[A].[C].:,1997.450452.[3]LechP.TheScienceandEngineeringofThermalSprayCoat2ings[M].Guildford:JohnWiley&Sons,1995.68159.[4]WUT,LICX,LICJ.SimultaneousMeasurementofSurfaceTemperatureandVelocityofIn-FlightParticlesunderHVOFConditionsbyThermalRadiationMethod[A].ProcoftheSec2ondInternationalConferenceonSurfaceEngineeringWuhan99[C].[s.l.]:[s.n.],1999.124127.[5]KowalsjyKA,MarantzDR,SmithMF,etal.HVOFParti2cle,FlameDiagnosticsandCoatingCharacteristics[A].Procofthe3thNTSC[C].USA:LongBeachCA,1990.587592.[:],YYQ,YYQ(),YQ0020815:,,,,,,,,,,,,,::505#:[e-mail]:86-755-2883-15482883-10792883-0887Fax:[phone]:13332976358:,,,::212219:3382:0511-8548348:0511-8548813:013905284965:Cr3C2-NiCr312004113711sioncracking(SCC),werestudiedaswellastheirmecha2nismsandcorrelation.LY6aluminumalloyissusceptibletopittingcorrosion,intergranularcorrosion,EXCOandSCCinthetestingenvironment,whichisessentiallyduetotheexis2tenceofsecondphases,suchasSphase(Al2CuMg),phase(CuAl2)andMnAl6phase.Theexfoliationofalloyhappensfromoriginalpittingtointergranularcorrosionandwithcoop2erationofstress.Byconstantloadtensiletestandfractureanalysis,SCCofLY6aluminumalloyisowingtotheanodicdissolutioneffect.Keywords:Al-Mg-Cualloy;stresscorrosioncracking;ex2foliationcorrosion;intergranularcorrosion;pittingcorrosionElectrodepositingTechnologyofAl2O3/NiFunctionalGradi2entMaterialsWANGHong-xing1,DONGYan-sheng1,LINPing-hua2(1.DepartmentofMaterialScienceandEngineering,SoutheastUniversity,Nanjiug210096;2.DepartmentofMaterialSc.ieneeandEngineering,HehaiUniversity,Nan2jing210098,China).CaillaoBaohu2004,37(11),1719(Ch).Ni/Al2O3gradientcoatingwaspreparedinthewattssolutionbymeansofcompositeelectroplatingtechnology.ThegeneraldistributionofAl203particleinthecompositecoatingontheoctahedroncathodewasstudiedbychangingtheprocessconditionsasparticleconcentration,cathodiccurreutdensityandstirringspeed.TheAl2O3particlescontentinthecompos2itecoatingwasmeasured,andthemetallographsofcoatingsectionwereobservedandanalyzed.Theoptimumprocesspa2rametersforgradientcoatingwereobtained.TheresultshowsthatNi/Al203gradientcoatingcanbemadebyrotatingcath2odeunderappropriateparameters,whichprovidesanewwaytopreparethegradientcompositematerial.Keywords:gradientcoating;compositeelectrodepositing;ro2tatingcathodeTechnologicalEquipmentParametersforBatchColoringPro2ductionofTitaniumandItsAlloysQIUWang-biao,YANGLv,JIAOHong-yi(CollegeofMechanicalEngineeringandAutomation,GuizhouInstituteofTechnology,Guiyang550003).CailiaoBaohu2004,37(11),2021(Ch).Anodizingcoloringmechanismoftitani2umanditsalloyswasanalyzedtomakesuretherelationshipoffiunthicknessandcoloringpowersource,sothatthetechno2logicalmethodandcurrentdesignparameterswerededucedtokeepthecolorconsistenceofbathproduction,whichprovidedanavailablemethodforcoloringoftitaniumanditsalloys.Keywords:titaniumanditsalloys;anodizingcoloring;color2ingconsistence;coloringpowersourceElectrodepositingTechnologyofNickel-ChromiumAlloyLIGuo-bin,PENGRong-hua,MASong-jiang(SchoolofChemistryandChemicalEngineering,HunanUniversityofScienceamtTechnology,Xiangtan411201,China).CailiaoBaohu2004,37(11),2223(Ch).Choosingsodiumcit2rateascomplexingagent,thecathodicbehaviorinNi-Cral2loyeleetrodepositingwasstudiedbydynamicpotentialmethod,aswellasthecorrosionresistanceofplatingwasstudiedexperimentally.Theresuitsshowthattheadditionofsodiumcitrateeomplexingagentincreasesthecathodicpolar2ization,andthechromiumcontentintheplatingdependsonthepHvalue,cathodiccurrentdensilyandcomplexingagent.Theehromiumcontentincreasesw