Phase transformation of TRIP-aided multiphase steel during continuous cooling-中国期刊网

摘要 Thephasetransformationcharacteristicsofahigh-strengthTRIP-aidedmultiphasecold-rolledsteelduringcontinuousheatingatdifferentcoolingrateswerestudiedbymeansofdilatometry,andthecriticaltemperatureswerealsodetermined.Thesampleswerefullyaustenitizedat1050℃andthencooledatdifferentcoolingratesrangingfrom0.5℃/sto100℃/s.Thecontinuouscoolingtransformation(CCT)curveswereobtainedfortheexperimentalsteel.Theexperimentalresultsshowedthatahighcoolingratedepressedtheformationofferriteandpearliteandpromotedtheformationofbainiteandmartensite,leadingtoahigherhardness.Alargeamountofmartensiteinhigh-strengthTRIP-aidedmultiphasecold-rolledsteelcanbeobtainedatcoolingratesinexcessof50℃/s.Theexperimentalresultsprovideguidelinesforcoolingcontrolandheattreatmentinrealsteelproduction.

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Phase transformation of TRIP-aided multiphase steel during continuous cooling

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Phase transformation of TRIP-aided multiphase steel during continuous cooling

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