Abstract

In this paper,the fine grain high-strength IF steel after cold-rolling and continuous annealing was studied.The microstructure under different holding time of fine-grain high strength IF steel was observed by the OM and the TEM technology. The influence of texture on continuous annealing time was analysed by Electron Back-Scattering Diffraction (EBSD) technology. It is proposed that the {111} recrystallization texture of fine-grain high strength IF steel is enhanced firstly, and then is weakened along with the increase of holding time, which confirms the strongest {111} texture is occurred at 120s holding time.

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