几何因素与摩擦耦合对高纯铝箔剪切织构的影响  

Effect of deformation geometry and friction on shear texture in high purity aluminum foils

作　　者：邓运来[1] 张新明[1] 刘瑛[1] 唐建国[1] 周卓平[1] 

机构地区：[1]中南大学材料科学与工程系,长沙410083

出　　处：《中国有色金属学报》2002年第4期634-638,共5页The Chinese Journal of Nonferrous Metals

基　　金：国家重点基础研究发展规划资助项目 ( 19990 6 490 8)

摘　　要：采用取向分布函数 (ODF)研究了轧制几何因素、轧制摩擦条件对高纯铝箔轧制织构的影响。结果显示 ,如果轧制摩擦因数大 ,当处于均匀变形几何条件 1<ld/d <5时 ,仍会出现粘着剪切变形 ,导致产生剪切织构CubeND;如果润滑条件良好 ,即使ld/d达到 7～ 10 ,处于不均匀变形轧制几何条件时 ,也未发现剪切织构CubeND。因此 ,考虑剪切织构CubeND产生时 ,要注意到在几何因素与摩擦条件的耦合作用中 ,摩擦条件对CubeND织构的产生具有更加明显的影响。Coupling effect of rolling geometry and friction on shear texture in high purity aluminum foils was investigated by orientation distribution function (ODF). The results show that the shear texture ND-rotated cube texture (Cube ND) is observed even if the homogeneous deformation condition, 1<l d/d<5, is met, which may be attributed to the heavy shear strain in deformation zone due to high friction conditions. In spite of the large ratio of l d/d, 7～10, at which there should occur heavy shear strain, the Cube ND is not observed because of low friction conditions. In regard to the Cube ND of high purity aluminum foils, the rolling geometry should be considered together with friction; the effect of friction on the formation of Cube ND may outweigh that of rolling geometry in their coupling.

关 键 词：轧制几何因子 摩擦 织构 高纯铝箔 轧制 

分 类 号：TG339[金属学及工艺—金属压力加工] TG146.21[一般工业技术—材料科学与工程]