Effect of Recrystallization Annealing Temperature on Microstructure,Properties and Textures of High-strength IF Steel

The effects of recrystallization annealing temperature on microstructure,properties and textures of high-strength IF steel were studied.The results show that the ferrite grain grow up,tensile strength of IF steel decrease,elongation increase firstly and then decrease,the r value increase while annealing temperature increase.The {111}110and{111}112 orientation density of γ fiber texture is stronger after annealing.{111}112 performed more obvious.Both of their densities in the 840℃ annealing process were at a high level,the difference of which was miner.