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《Influence of heating rate and temperature onaustenite grain size during reheating steel升温速率和温度对温度地影响 再加热钢地奥氏体晶粒尺寸.pdf》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、IOPConferenceSeries:MaterialsScienceandEngineeringPAPER•OPENACCESSRelatedcontent-ExperimentalandNumericalInvestigationInfluenceofheatingrateandtemperatureononUnderwaterWetWeldingOfHSLASteelaustenitegrainsizeduringreheatingsteelChunyanYan,ChenxiaKan,ChenLietal.
2、-TheinfluenceofhighheatinputandinclusionscontrolforrareearthonweldingTocitethisarticle:RichardA.M.Napitupulu2017IOPConf.Ser.:Mater.Sci.Eng.237012038inlowalloyhighstrengthsteelRenshengChu,ShukunMu,JingangLiuetal.-Studyonthekeyroleofhierarchicalmicrostructurefor
3、strengthandplasticityinViewthearticleonlineforupdatesandenhancements.alathmartensiticsteelMingYang,Shao-leiLongandYi-longLiangThiscontentwasdownloadedfromIPaddress117.165.41.99on15/09/2018at03:401stNommensenInternationalConferenceonTechnologyandEngineeringIOPP
4、ublishingIOPConf.Series:MaterialsScienceandEngineering1234567890237(2017)012038doi:10.1088/1757-899X/237/1/012038InfluenceofheatingrateandtemperatureonaustenitegrainsizeduringreheatingsteelRichardA.M.NapitupuluMechanicalEngineeringDepartment,UniversitasHKBPNom
5、mensen,Medan,20234,Indonesiarichard_alf@yahoo.comAbstract.ControllingthefinalmicrostructureisoneeffectivewaytogetHSLAsteelwithgoodmechanicalproperties.Thestructureofthedesireditemonthefinalmicrostructuredependsontheinitialgrainsizeformedduringtheinitialheating
6、process,wheretogetsuperfineferritegrains,itshouldformtheinitialaustenitegrainsmoothduringtheheatingprocess.Austenitegrainsizeatthebeginningoftheheatingprocessisimportantinordertoobtainthesizeofthefinalmicrostructurethatprovidesmaximummechanicalproperties.Inthi
7、sstudy,HSLAsteelreheatedtoatemperatureof960oC,1060oCand1120oCwithholdingtimevariationof10,30and60minutesataheatingrateof5°C/minute,7.5oC/minuteand10°C/minute,thenwaterquenching.TheaustenitesawbyusingopticmicroscopeandcountbyASTME112method.Fromtheresultsitiscon
8、cludedthatthereisarelationshipbetweentemperaturesinterrelatedheating,heatingrateandholdingtimeonthegrowthofaustenitegrain.Thehigherthetemperature,theheatingoccuraustenitegrainsize.
