关键词: IF钢, 冷轧织构, 退火织构, ODF织构分析

Abstract: Evolution of the texture of IF steel plates with different cold rolling reduction, and different annealed after hot rolling high temperature coils with 80% cold rolling reduction was studied by using X-ray diffraction (XRD). The results show that with the increase of cold rolling reduction, the weak {110}<110>, {110}<001> and {112}<110> textures of hot rolled coiled IF steel specimen gradually change to {110}<011> and{100}<011> textures, also a weak {111} plane texture is formed. For cold rolled IF steel plate with cold rolling reduction of 80%, the annealing conditions that are beneficial to formation of the γ-fiber texture in turn are as follows: 790 ℃/60 min, 670 ℃/10 min and 790 ℃/10 min. When annealed at a higher temperature of 850 ℃, the texture such as {112}<110> is liable to form, which inhibits the formation of γ-fiber texture and is not conducive to the improvement of deep drawing performance.

Key words: IF steel, cold rolled texture, annealed texture, ODF texture analysis