Effect of controlled rolling and controlled cooling process on microstructure of Ti-alloyed pipeline for CSP-中国期刊网

摘要 Thepipelinesteelisusuallyproducedbyaddingniobiumandvanadiumalloyingelements.Thetitaniumalloyedpipelinesteelwasstudiedinthepapertoreducetheproductioncostandenhancethecompetitiveabilityofpipelinesteel.Thesteelcontaining0.070%Tiwasrefinedinthelaboratoryvacuumrefinefurnace.ThedynamicCCTcurveofdevelopedsteelwasconductedonGleeble-1500thermalsimulatorandmulti-passdeformationtestsofstudiedpipelinesteelwereperformedtosimulatetheCSPhot-rollingtechnology.Correspondingmicrostructureswereobservedandtheinfluencesofsuchtechnologyparametersasdeformationstrain,deformationtemperature,coolingrateandfinishingtemperatureetc.onmicrostructurewereanalyzed.ThedynamicCCTcurvewasobtained.ThetestresultsshowedthatthevolumefractionofacicularferriteinthemicrostructureofTi-microalloyedX70pipelinesteelincreasedobviouslywiththeincreaseofcoolingrateafterthermo-mechanicaldeformation.However,thevolumefractionofacicularferritevariesscarcelyafterthecoolingrateof20℃/s.InordertoobtainTi-microalloyedX70pipelinesteelwithexcellentcompoundmechanicalpropertieswhichhasacicularferriteasthemainidealmicrostructure,thecoolingrateshouldbecontrolledtobe20℃/sormore.Thehigherofthefinishingtemperature,themoreofthevolumeofacicularferriteandthelessofthevolumeofpolygonalferrite.Thequitefinemicrostructurecanbeobtainedbyloweringthefinish-coolingtemperature.TheresultshaveshownthatitispossibletoproducetheTi-additionX70pipelinesteelfromthepointofviewofmicrostructure.

1A.Fallahi. Microstructure—Properties Correlation of Dual Phase Steels Produced by Controlled Rolling Process.材料科学与工程,2002-05.
2Yong Hong;Hongbing Shi;Xia Shu;Yuchun Zheng;Yong Zhang;Yucfieng Wu. Controlled synthesis of hollow magnetic Fe3O4 nanospheres： Effect of the cooling rate.力学,2017-04.
3Vu Tien Viet. An Application of Random Process for Controlled Object Identification with Traffic Delay Problem.基础数学,2015-02.
4LI Wei. Effect of hot-rolling deformation on the microstructure of pearlite of eutectoid steel.钢铁冶金,2015-04.
5Xiao-Na WANG;Ping-An HU. Carbon nanomaterials： controlled growth and field-effect transistor biosensors.材料科学与工程,2012-01.
6WANG Xiaobo;ZHAO Sixin;Liu Ye. Cost reduction of alloying element in high strength steel plate by optimization of controlled cooling technology.钢铁冶金,2012-04.
7Yichi LIU Debao LIU then YOU Minfang CHEN. Effects of grain size on the corrosion resistance of pure magnesium by cooling rate-controlled solidification.材料科学与工程,2015-03.
8ZHANG Li;ZHAO Su. Influence of cooling rates on the precipitation behavior and microstructure of Nb-Ti microalloyed steel.钢铁冶金,2012-03.
9肖志霞;张虎. Microstructure Evolution of Ti-47Al-2Cr-2Nb Alloy in the Liquid-Metal-Cooling （LMC） Directional-Solidification Process.材料科学与工程,2011-02.
10王鑫;陆善平;李殿中;李依依. Effect of Ti on the microstructure and mechanical properties of MAG multipass weld metal.焊接,2011-01.

Effect of controlled rolling and controlled cooling process on microstructure of Ti-alloyed pipeline for CSP

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Effect of controlled rolling and controlled cooling process on microstructure of Ti-alloyed pipeline for CSP

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