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1、ISIJInternational,Vol.44(2004),No.10,pp.1661–1668EquationsfortheCalculationoftheThermo-physicalPropertiesofStainlessSteel1)KennethC.MILLS,YuchuSU,ZushuLIandRobertF.BROOKSDepartmentofMaterials,ImperialCollege,London,SW72BP,UK.E-mail:kenmills@tesco.net,yuchu.su@imperial.ac.uk,z.li@imp
2、erial.ac.uk1)NationalPhysicalLaboratory,Teddington,TW11OLW,UK.E-mail:Rob.Brooks@npl.co.uk(ReceivedonMay6,2004;acceptedinfinalformonJuly8,2004)Equationshavebeenderivedtocalculatevaluesofthethermophysicalpropertiesofallstainlesssteelsfortemperaturesbetween300and1800K(austenitic3series,
3、ferritic-4seriesandprecipitation-hardened6-se-riesalloys).Valuesofthefollowingpropertiesaregiveninbothfiguresandtables:density(r),thermalex-pansioncoefficient(a),heatcapacity(Cp),enthalpy(HTH298),thermalconductivity(l)andthermaldiffusivi-ty(a),electricalresistivity(R),viscosity(h)and
4、surfacetension(g).KEYWORDS:stainlesssteels;thermo-physicalproperties;density;surfacetension;viscosity;heatcapaci-ty;enthalpy;thermalandelectricalconductivity.sequently,inthesecases,itisnotalwayspossibletogive1.IntrodctiononeequationtocoverallthepropertiesforalltypesofStainlesssteels
5、playanimportantpartinmodernlivingstainlesssteel.sincetheyhavegoodcorrosionresistanceandapleasingThermalandelectricalconductivity(orresistivity)valuesappearance.Thereareseveraltypesofstainlesssteel(typi-areaffectedbythemicrostructureofthesolidsamplewhichcalcompositionsaregiveninTable
6、1):is,inturn,dependentupontheheattreatmentandthecold–3seriescontainCrandNiandusuallycontainMo;theyworkgiventothealloy.Inthesecasesthethermalconduc-haveametastable,austeniticstructuretivityandelectricalresistivityrefertosampleswiththe–4seriescontainCr(butnoNisincethisstabilisesthemax
7、imumconductivityorminimumresistance.Propertyaustenite)andhaveaferriticstructurebutmartensiticvaluesbasedonthevariousrecommendedequationsarephasescanbeformedinsomecases(e.g.410)whenoil-givenattheendofthepaperinTables3and4.quenchedorair-cooledTheliquidustemperatures,Tliq,ofthevarioust
8、ypesof–6-seriesarep
