剪切变形方向特征对高纯铝箔轧制织构的影响  

Effect of direction change of shear deformation on rolling textures in high purity Al foils

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

机构地区：[1]中南大学材料科学与工程学院,长沙410083

出　　处：《中国有色金属学报》2005年第6期829-835,共7页The Chinese Journal of Nonferrous Metals

基　　金：国家自然科学基金资助项目(50231030;50301016);国家教育部博士点基金资助项目(2004053304)

摘　　要：运用取向分布函数(ODF)研究了每个轧制道次的剪切变形特征对高纯铝箔轧制织构的影响。提出用中性角的相对大小来量化轧制剪切变形作用方向改变的位置,运用Taylor晶体塑性变形理论模拟计算了中性角的相对大小对轧制织构演变的影响。实测与模拟的轧制织构特征表明:中性角靠近轧制变形区的中心位置有利于形成{001}〈110〉剪切织构,从而证实了除剪切变形的程度外,剪切变形方向改变的位置也是影响高纯铝箔轧制织构的重要因素。Effect of direction change of shear deformation on the rolling textures in high purity Al foils was investigated by orientation distribution function (ODF). The quantitative estimation of relative neutral angle was suggested and introduced into the Taylor-type crystal plasticity deformation model to simulate the rolling textures. It is shown that the condition of neutral angle locating at the middle point of rolling deformation zone favors the development of the {001}〈110〉 shear texture whatever the measured and the simulated ODFs are, which leads to the conclusion that the evolution of rolling textures is contributed by the parameter of relative neutral angle except the magnitude of shear deformation.

关 键 词：电容器 高纯铝箔 轧制织构 中性角 剪切变形 织构模拟 

分 类 号：TG111.7[金属学及工艺—物理冶金] TG115.22[金属学及工艺—金属学]