Mechanical performance and texture characteristic of an IF steel containing Nb and Ti by double cold rolling

Abstract

Single cold rolling and double cold rolling were applied to hot rolled strips with different reduction ratios. The evolutions of {100}, {111} and Goss face texture during double rolling were investigated by comparing the orientation distribution function (ODF) of the double rolled sample with that of the single rolled one. The double cold rolling texture is characterized by a higher γ-texture and a lower α-texture, and the {111}<112> component is improved remarkably. Based on the TEM observation and mechanical properties test, it is found that the reduction ratio assignment significantly affects the texture variation, as-annealing microstructures, and properties of the double cold rolled samples. These results may provide a theoretical guide for the industrial production of double cold rolled IF steel.