Phase Transformation and Second-phase Precipitation Behavior of Ti Microalloyed Steel during Continuous Cooling after Hot Deformation
HAN Jie
LIU Yanlin
SUN Qianshuang
LI Junyu
Abstract：By using thermo-mechanical simulator, OM, SEM, TEM and macroscopic hardness test, the phase transformation behavior and microstructures evolution of deformed austenite in Ti microalloyed steel during continuous cooling process was studied. The CCT curve of tested steel was determined. The effect of cooling rate on the second-phase precipitation was investigated. The results show that different microstructures are obtained in tested steel at the different cooling rates. The precipitation amount of second-phase got more and the particle size is finer with increasing of cooling rate. But if the cooling rate is too high, the precipitation will be inhibited.
Keywords：Ti microalloyed steelcontinuous coolingphase transformationsecond-phase
Publication Date：2014-07-02
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：4( 41-43,47 )