Abstract: The manufacturing flow sheet simulated CSP process o£ narrow strip of Hi-B steel (/% ： 0. 05C, 0. 20Mn, 3. 47Si, 0. 001 5S, 0. 007P, 0. 027Al, 0.006 0N) is 25 kg vacuum induction fumace melting- casting to 40 mm x 85 mm slab ingot- hot-rolling to 2. 5 mm plate- normalizing at 930 °C - cold-rolling to 0. 6 mm (76% ), 0. 4 mm (84% ) , 0. 3 mm (88% ) and 0. 2 mm (92% ) sheet- primary recrystallization-annealing at 830 °C for 5 min. The analysis on texture of priniary recrystallization-annealed specimen has been carried out by X-ray diffractometry (XRD). Results show that after primary recrystallization-annealing, the GOSS texture forms mainly at subsurface and there are some GOSS texture al 1/4 layer of sheet with reduction ratio 76% ; with increasing reduction the intensity of {112} < 110 > and {001}< 110 > orientation of a fiber texture gradually weaken, while the intensity of {111} < 112 > and {111}< 110 > orientation of γ fiber texture orientation first increase and then weaken ； with reduction ratio 88% the γ fiber texture strongly concentrates to {111} < 112 > orientation, the intensity of that reaches to max, it is favourable to form GOSS texture.

摘要： 模拟CSP Hi-B钢(/%:0.05C,0.20Mn,3.47Si,0.001 5S,0.007P,0.027Al,0.006 0N)窄带制造流程为25 kg真空感应炉熔炼-浇铸成40 mm×85 mm扁锭-热轧2.5 mm板-930℃常化处理-冷轧成0.6 mm(76%),0.4mm(84%),0.3 mm(88%)和0.2 mm(92%)薄板-830℃5 min初次再结晶退火。采用X-射线衍射测量技术(XRD)对初次再结品退火后的试样进行织构分析。结果表明,初次再结晶退火后,GOSS织构主要形成于次表层,有少量的GOSS织构存存于76%压下量的1/4层;随压下量的增加,α纤维织构中的{112}〈1 10〉和{001}〈110〉取向强度逐渐减弱,而γ纤维织构中的{111}〈112〉和{111}〈110〉取向强度先增强后减弱;在压下量为88%时,γ纤维织构强烈向{111}〈112〉取向集中,强度达到最大,最有利于GOSS织构的形成。