第2期 马荣等:℃r低活化马氏体钢高温变形行为 ,177. 180 0.5 0.40 (a) 160向 160 0 0.35 140 0.4 120 0.30 00 0.25 03 n.20 0.2 0.15 0 0.10 40Y 30313233343药363738390.1 0.05 )4 28 32 36 40 In(Z/s-) In(Z/s-) 图89C低活化马氏体钢动态再结晶蜂值应力·,峰值应变。临界应力6和临界应变e与参数Z的关系·(a)了。一Z和,一Z(b) 6:-Z和。-Z Fig8 Relationships of peak stress peak stmin eritical stress and critical stmanfordynan ic reerystallization with panmeterof9Cr duced activation martensitic steel (a)op-Z andp-Z:(b).-Z and Ee-Z 3.1 doped 9Cr steels irmad iated in HFR.J NuclM a ter 2002 305(2/ 3.0 3):153 2.9 [6]Kheh R L Hashioto N.Maziasz P J New nano particle- 2.8 strengthened ferritic /martensitic steels by conventional themome- 274 chanical treament J NuclMater 2007.367-370.48 2 [7]McQueen H J Yue S Ryan N D.et al Hot woring characteris- 2.5 tics of steels in austenitic state JMater P rocess Technol 1995 53 2.4 ◆ (12):293 2.3 [8]McQueen H J Ryan N D.Constitutive analysis in hot working 2.2 29303引32333435363738 Mater SciEng A 2002 322(12):43 In(Z/s-) [9]Cao JR.Li ZD.Cheng SC et al Infhences of strain mate and defomation temperatire on flow stress and critical dynan ic recrys- 图99C低活化马氏体钢动态再结晶晶粒尺寸d与参数Z之 tallization of heat resistant steel T122 Acta Metall Sin 2007,43 间的关系 (1):35 Fig9 Relationships of grain sive during dynan ic meerystallization (曹金荣,刘正东,程世长,等.应变速率和变形温度对T122 with parmeterZ of9Cr meduced activation martensitic steel 耐热钢流变应力和临界动态再结晶行为的影响。金属学报, 2007,43(1):35) (3)回归得到了9C低活化马氏体钢动态再结 [10]Medina S F.Hemandez C A.General expression of the Zener 晶晶粒大小与参数Z的关系 Hollmon parmeter as a function of the chen ical camposition of lw alby and m icmalbyed steels Acta Mater 1996.44 (1): 参考文献 137 [11]Samantamay D.Mandal S BhaduriA K.Constitutive analysis to [1]Lindan R.Schirra M.First msults on the chanacterisation of the predict high-temperature flow stress in modified 9CrlMo (P91) reduced activation-ferritic /martensitic steel EUROFER.Fusion steel Mater Des 2010 31(2):981 Eng Des2001,5859.781 [12]Hemandez C A.Medina S F Ruiz J Modelling austenite flow [2]Petersen C Rodrian D.Themomechanical fatigue behavior of re curves in low alloy and m icmalloyed steels Acta Mater 1996. duced activation ferrite /mariensite stanless steels J Nucl Mater 44(1):155 2002307-311,500 [13]Medina S F.HemandezC A.Modelling of the dynamn ic recrystal [3]Yu G.Nita N.Bahe N.Themal creep behaviour of the EURO- lization of austenite in low alloy and m icmalloyed steels Acta FER 97 RAFM steel and wo Eumpean ODS EUROFER 97 steels Maer199644(1):165 Fusion Eng Des 2005 75-79(Suppl):1037 [14]Rao K P.Hawbolt E B.Assessment of siple flow stress rela [4]Gamer F A.Tolczko M B Sencer B H.Canparison of welling tionships using litemtire data for a range of steels J Mater and iradiation cmeep behavior of fee-austenitic and bee-ferritic/ Pmcess Technol 1992 29(1/3):15 martensitic alloys at high neutron exposume J Nucl Mater 2000 [15]Poliak E I Jonas J A one parmeter approach to detem ning 276(1-3):123 the critical conditions for the initiation of dynam ic recrystalliza- [5]Hashinoto N.K hch R L Micmostnuchural evolution of nickel tion Acta Mater 1996.44(1):127第 2期 马 荣等: 9Cr低活化马氏体钢高温变形行为 图 8 9Cr低活化马氏体钢动态再结晶峰值应力 σp、峰值应变 εp、临界应力 σc和临界应变 εc与参数 Z的关系 ∙(a) σp-Z和 εp-Z;(b) σc-Z和 εc-Z Fig.8 RelationshipsofpeakstressσppeakstrainεpcriticalstressσcandcriticalstrainεcfordynamicrecrystallizationwithparametersZof9Crre- ducedactivationmartensiticsteel:(a) σp-Zandεp-Z;(b) σc-Zandεc-Z 图 9 9Cr低活化马氏体钢动态再结晶晶粒尺寸 d与参数 Z之 间的关系 Fig.9 Relationshipsofgrainsizeduringdynamicrecrystallization withparameterZof9Crreducedactivationmartensiticsteel (3) 回归得到了 9Cr低活化马氏体钢动态再结 晶晶粒大小与参数 Z的关系. 参 考 文 献 [1] LindanRSchirraM.Firstresultsonthecharacterisationofthe reduced-activation-ferritic/martensitic steelEUROFER. Fusion EngDes200158/59:781 [2] PetersenCRodrianD.Thermo-mechanicalfatiguebehaviorofre- ducedactivationferrite/martensitestainlesssteels.JNuclMater 2002307-311:500 [3] YuGNitaNBalucN.ThermalcreepbehaviouroftheEURO- FER97RAFMsteelandtwoEuropeanODSEUROFER97steels. FusionEngDes200575-79(Suppl):1037 [4] GarnerFAToloczkoM BSencerBH.Comparisonofswelling andirradiationcreepbehavioroffcc-austeniticandbcc-ferritic/ martensiticalloysathighneutronexposure.JNuclMater2000 276(1-3):123 [5] HashimotoNKluehR L.Microstructuralevolutionofnickel- doped9CrsteelsirradiatedinHFIR.JNuclMater2002305(2/ 3):153 [6] KluehR LHashimotoNMaziaszP J.New nano-particle- strengthenedferritic/martensiticsteelsbyconventionalthermo-me- chanicaltreatment.JNuclMater2007367-370:48 [7] McQueenHJYueSRyanNDetal.Hotworkingcharacteris- ticsofsteelsinausteniticstate.JMaterProcessTechnol199553 (1/2):293 [8] McQueenHJRyanND.Constitutiveanalysisinhotworking. MaterSciEngA2002322(1/2):43 [9] CaoJRLiuZDChengSCetal.Influencesofstrainrateand deformationtemperatureonflowstressandcriticaldynamicrecrys- tallizationofheatresistantsteelT122.ActaMetallSin200743 (1):35 (曹金荣刘正东程世长等.应变速率和变形温度对 T122 耐热钢流变应力和临界动态再结晶行为的影响.金属学报 200743(1):35) [10] MedinaSFHernandezCA.GeneralexpressionoftheZener- Hollomonparameterasafunctionofthechemicalcompositionof lowalloyandmicroalloyedsteels.ActaMater199644(1): 137 [11] SamantarayDMandalSBhaduriAK.Constitutiveanalysisto predicthigh-temperatureflowstressinmodified9Cr-1Mo(P91) steel.MaterDes201031(2):981 [12] HernandezCAMedinaSFRuizJ.Modellingausteniteflow curvesinlowalloyandmicroalloyedsteels.ActaMater1996 44(1):155 [13] MedinaSFHernandezCA.Modellingofthedynamicrecrystal- lizationofausteniteinlowalloyandmicroalloyedsteels.Acta Mater199644(1):165 [14] RaoKPHawboltEB.Assessmentofsimpleflow-stressrela- tionshipsusingliteraturedataforarangeofsteels.JMater ProcessTechnol199229(1/3):15 [15] PoliakEIJonasJJ.Aone-parameterapproachtodetermining thecriticalconditionsfortheinitiationofdynamicrecrystalliza- tion.ActaMater199644(1):127 ·177·