Microstructure and texture evolution of low-carbon Cr-Mo deep drawing dual-phase steel were investigated by using microstructure observation, TEM and XRD. The results show that, the finish-rolling process conducted in austenite no-recrystallization zone promoted the formation of {112} <111> component. The intensity of {001} <110> , {112} <110> and {223}<110> orientations were steadily enhanced during cold rolling. The formation of sharper ＜111＞/ND, {554} (225) and {332} <113> textures during annealing was favorable to improve the deep draw-ability of dual-phase steel. When intercritical annealed at 820℃ and 860℃ , the intensity of γ-fibre was slightly different. The difference of intensity between {111} (110) and {111} < 112> texture tended to increase at high-temperature annealing, causing by the solution-carbon of bainite and the variant selection from austenite to bainite. The high-temperature coiling process induced precipitation of Mo-based carbide in hot-rolled strips, and re-dissolution during the holding stage in annealing process, which not only facilitated the formation of re-crystallization textures, but also improved the second phase transformation.%通过组织观察以及TEM与XRD技术研究了低碳Cr-Mo系深冲双相钢组织与织构演变规律.结果表明:奥氏体未再结晶区终轧有利于形成{112}〈111〉织构,冷轧过程中{001}〈110〉,{112}〈110〉与{223}〈110〉织构稳定增加,退火过程中形成有利于深冲性能的〈111〉//ND以及{554}〈225〉与｛332}〈113〉织构；820℃与860℃临界区退火后γ纤维织构密度差异较小,但是高温退火增大{111}〈110〉与{111}〈112〉织构的取向密度差值,归因于贝氏体中的固溶碳以及贝氏体相变时的变体选择；高温卷取能诱发热轧板中Mo基碳化物粒子析出,并在退火保温过程中回溶,既能发展再结晶织构,又能促进第二相形成.
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