Ti-IF和Ti+Nb+P-IF钢连退板的析出物与织构研究

摘要

Precipitates and texture were studied in two continuous annealed Ti-IF and Ti + Nb + P-IF steels. A large amount of bigger sized TiN, Ti( C,N) and Ti4C2S2 precipitates were mainly observed in the Ti-IF steel, contributing to the formation of strong 7-fiber texture. Many Fe(Nb,Ti)P phases and numerous fine (Nb,Ti)C precipitates were considered to be primarily responsible for smaller grains and less intense{ 111} texture in the Ti + Nb + P-IF steel.%对普通Ti-IF钢和高强Ti+ Nb+ P-IF钢连退板分别进行了析出物分析与微观织构检测.结果表明:普通IF钢中有较多粗大的TiN、Ti(C,N)和Ti4C2S2析出物,形成了较强的Υ纤维织构;高强IF钢中发现有许多Fe( Nb,Ti)P相析出,并弥散分布大量细小的(Nb,Ti)C析出物,促使晶粒细化,Υ纤维织构减弱.