中文摘要：

在轧制过程无退火处理的条件下,通过同步轧制和异步轧制将工业纯铜从5.8 mm轧薄至20μm。采用取向分布函数和取向线分析方法研究了轧材织构的演变规律。结果表明：均匀退火后的原料初始织构主要为旋转立方织构{100}〈011〉,在剧烈塑性变形过程中,晶粒取向主要在β线上聚集,其形变织构主要由铜型织构{112}〈111〉和黄铜织构{011}〈211〉组成。样品在减薄过程中,织构强度不断增加,但在轧制后期织构增长速率并未因塑性变形程度的增加而减缓,反而显著增加。

英文摘要：

Pure copper was rolled from 5.8 mm to 20 μm by symmetrical rolling and asymmetrical rolling in rolling process without annealing. Rolling texture evolution was researched by using orientation distribution functions and orientation line analysis method. The results show that the initial texture of the raw material after homogenizing annealing is mainly rotating cube texture {100}〈011〉. In the severe plastic deformation process, grain orientation mainly gathers in the β line, and its deformation texture is mainly consist of copper type texture {112}〈111〉 and brass texture {011}〈211〉. In the thinning process,the texture intensity of the sample increases continuously. But texture growth rate in the later rolling does not slow down with plastic deformation increasing, and significantly increases.