Recrystallization Microstructure Character of Annealing Strip Steel Based on the Compact Strip Production

Abstract

Recrystallization microstructure evolution in cold rolled low carbon compact strip production (CSP) steel was observed by means of optical microscope and transmission electron microscope (TEM).The influence of fine precipitates on microstructure of strip steel during the recrystallization annealing was analysed by using Small Angle X-ray Scattering (SAXS) technique, and the textures evolution was investigated by means of ODF analysis. It was found that the deoxidation residual solute precipitate at the grain boundary during rapid cooling in the CSP process, these fine particles responsible for retarding ferrite grain coalescence and growth during annealing, thus the recrystallization microstructure of CSP strip steel show unique characteristics.