材料期刊网

Textures and Properties of Hot Rolled High Strength TiIF Steels

GUO Yanhui , WANG Zhaodong , ZOU Wenwen , LIU Xianghua , WANG Guodong

钢铁研究学报(英文版)

The texture evolution in a high strength TiIF steel during the processing of hot rolling, cold rolling, and annealing is studied. For comparison, both ferrite rolling and austenite rolling are employed. It is found that the texture type is the same after ferrite rolling and austenite rolling, but the texture intensity is much higher in the ferrite rolled sample. Furthermore, texture characteristics at the surface are absolutely different from those at the midsection in both ferrite rolled and austenite rolled samples, as well as under the cold rolled and annealed conditions. The shear texture {110}<001> disappears and orientation rotates along {110}<001>→{554}<225>→{111}<112>→{111}<110>→{223}<110> during cold rolling. Compared to the austenite rolled sample, the properties of the cold rolled and annealed sheet which is subjected to ferrite rolling are higher.

关键词: high strength TiIF steel;ferrite rolling;austenite rolling;texture