Deformation and Recrystallization Textures in a C–Si–Mn–V Dual Phase Steel

Dual phase structures were produced in a C–Si–Mn–V steel from both ferrite-pearlite and martensiticstructures by intercritical annealing at 750℃ and 810℃. Samples with different distributions of ferriteand martensite were cold rolled 60% and then recrystallized at 650℃ and 800℃ for different lengthsof time. Texture measurements were carried out on the cold rolled as well as recrystallized materialsusing both the conventional pole-figure and ODF (Orientation Distribution Function) methods. Theresults indicated the presence of a reasonably strong〈111 〉∥ ND fibre in the cold deformed alloy. Thetextures in the recrystallized condition were found to be basically similar to the ones for thecorresponding cold deformed materials, with the difference that the pole densities were somewhatweaker in the former. A weak{ 11 , 11 , 4 }fibre and a weak and incomplete{ 337 }fibre have also beenobserved in both the cold deformed and recrystallized materials. Samples recrystallized at the lowertemperature of 650℃ exhibited a sharper{ 111 }texture as compared to the 800℃ annealed materialsand this difference in texture intensities were perceptibly reflected in the corresponding r -values.