This study experimentally investigated basal texture initiation and development during cold rolling, in combination with simulation using a modified visco-plastic self-consistent (VPSC) model. The results showed that the orientation of extension twins exhibit a random distribution after rolling. In contrast, the matrix grains deformed by slips tend to orientate with their c-axis around the normal direction (ND). Plastic strain concentration induced by dislocation piling up at grain boundaries contributes to plastic deformation inhomogeneity, and promotes the basal–pyramidal and prismatic–prismatic binary slips. Incorporated with the interactions between the basal 〈a〉 and pyramidal 〈c + a〉 dislocations, and between the prismatic 〈a〉 dislocations, the VPSC model replicates the experimental results, effectively demonstrating the process of the basal texture initiation and development. The basal texture initiation is independent of twinning, and results mainly from the development of misorientation induced by the formation of dislocation sub-boundaries via the interaction between the basal 〈a〉 and pyramidal 〈c + a〉 dislocations.

本研究通过实验研究了冷轧过程中基础织构的产生和发展，并结合使用改进的粘塑性自洽（VPSC）模型进行模拟。结果表明，轧制后延伸孪晶的取向呈现随机分布。相反，由于滑移而变形的基体晶粒往往以其 c 轴围绕法线方向 (ND) 进行取向。位错在晶界堆积引起的塑性应变集中导致塑性变形不均匀，并促进基底-锥体和棱柱-棱柱二元滑移。结合基底〈a〉和锥体〈c + a〉位错之间以及棱柱〈a〉位错之间的相互作用， VPSC模型 复制 了实验结果，有效地展示了基底织构的起始和发展过程。基底织构的起始与孪晶无关，主要是由于基底<a>和锥体< c  +  a >位错之间的相互作用形成位错子边界而引起的取向错误的发展。