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《structure evolution and solidification behavior of austenitic stainless steel in pulsed magnetic field》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。
1、StructureEvolutionandSolidificationBehaviorofAusteniticStainlessSteelinPulsedMagneticFieldAvailableonlineatwww.sciencedirect.comsc…ct@..一….JOURNAlOFIRONANDSTEELRESEARCH,INTERNATIONAL.2006,13(5):69—72StructureEvolutionandSolidificationBehaviorofAusteniti
2、cStainlessSteelinPulsedMagneticFieldLIQiu—shu,LIHai—bin,ZHAIQi—jie(1.SchoolofMaterialsScienceandEngineering,ShanghaiUniversity,Shanghai200072,China:2.SchoolofMaterialsScienceandEngineering,TaiyuanUniversityofScienceandTechnology,Taiyuan030024,Shanxi,Chi
3、na)Abstract:Tounderstandthesolidificationbehaviorofausteniticstainlesssteelinpulsedmagneticfield,thesolidifica～tionprocessisinvestigatedbymeansoftheself—madehighvoltagepulsepowersourceandthesolidificationtester.Theresultsshowthatthesolidificationstructu
4、reofausteniticstainlesssteelcanberemarkablyrefinedinpulsedmag～neticfield,yetthegrainsbecomecoarseagainwhenthemagneticintensityisexceedinglylarge,indicatingthatanop～timalintensityrangeexistedforstructurerefinement.Thesolidificationtemperaturecanbeenhance
5、dwithanin～creaseinthemagneticintensity.Thesolidificationtimeisshortenedobviously,huttheshorteningdegreeisreducedwiththeincreaseofthemagneticintensity.Keywords:pulsedmagneticfield;austeniticstainlesssteel;solidificationstructure;solidificationbehaviorAus
6、teniticstainlesssteelspossessexcellentpropertiesandgainwideapplicationsinindustry.Currently,thestudyonausteniticstainlesssteelhasbeencarriedout,inwhichthesolidificationstruc—tureisoneofthekeyissuesthatattractmoreatten—tions.Generally,mechanicalpropertie
7、sdependonthesolidificationstructure.andthestructurerefine—mentisfavorabletotheimprovementofmechanicalproperties.Asaresult,finesolidificationstructuresareexpected.Toimprovethesolidificationstructureofthemetals,electromagneticfieldshavebeenemployedformany
8、years[.However.manyinvestigationsaremainlyfocusedonthealloyswithlowmeltingtemperature[]duetosomelimitations.Inpresentstudy,theausteniticstainlesssteelwithhighmelt—ingtemperatureisselected,andtheregularityandmechanismoftheinfluenc
