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对罩式退火和连续退火过程中ＴｉＩＦ 钢二相粒子的演变规律进行了研究，结果表明：在退火以前形成的二相粒子，ＴｉＮ、ＴｉＳ和Ｔｉ４（ＣＳ）２ 经过罩式退火和连续退火后，其尺寸、形状和分布无较大的差别，而ＴｉＣ的变化较大；ＴｉＩＦ钢在连续退火中不形成新的相粒子，而在罩式退火中形成两类新的二相粒子—ＦｅＴｉＰ和（Ｔｉ，Ｍｎ）Ｓ． 这是首次报道有关ＦｅＴｉＰ 相在含Ｐ、Ｍｎ 较低（Ｐ≤０ ．０１ ％ ， Ｍｎ＜０ ．２ ％ ） 的ＴｉＩＦ钢中析出，以及Ｍｎ 以（Ｔｉ，Ｍｎ）Ｓ相的形式在罩式退火过程中析出． 文章还研究了这两种新相的相结构以及卷取温度对ＦｅＴｉＰ相析出的影响．
The evolution of the two-phase particles of TiIF steel during the annealing and continuous annealing process was studied. The results show that the two-phase particles TiN, TiS and Ti4 (CS) 2 formed before annealing are annealed and annealed After annealing, there is no significant difference in size, shape and distribution, but TiC changes greatly. TiIF steel does not form new phase particles in continuous annealing, but two new types of two phase Particles-FeTiP and (Ti, Mn) S. This is the first report about the precipitation of FeTiP phases in Ti-IF steels with low P and Mn contents (P ≤ 0.01%, Mn <0.2%) and Mn in the form of (Ti, Mn) Bell annealing process precipitation. The article also studied the phase structure of these two new phases and the effect of coiling temperature on the precipitation of FeTiP phase.