AA3104热轧铝板织构的快速测量  

Rapid texture measurement of AA3104 hot bands

作　　者：刘涛[1] 毛卫民[1] 马全仓[1] 冯惠平[1] 陈昌云 李吉彬 

机构地区：[1]北京科技大学材料科学与工程学院,北京100083 [2]西南铝业(集团)公司,重庆401326

出　　处：《北京科技大学学报》2007年第6期595-598,共4页Journal of University of Science and Technology Beijing

基　　金：国家自然科学基金资助项目(No.50171014);国家"863"计划资助项目(No.2003AA331080)

摘　　要：提出一种准确快速测量AA3104热轧铝板织构的方法.为避免因反射法测量带来的不均匀性,根据铝板的样品对称性和晶体对称性,用透射法测出极图上一条弧段上的衍射数据.用正态分布来拟合测量的数据,并得到各织构组分的特征参数.用所得参数计算出的极图和ODF图与用常规方法实际测得的结果有较好的一致性,很好地预测到热轧铝板的主要织构组分.原则上,该技术可以发展成为工业上热轧铝板织构的在线定量检测技术.A new technique was proposed for rapid and accurate texture measurement of AA3104 hot bands. Based on the sample and crystal symmetry of aluminum bands, the diffraction data along an arc in pole figures were measured using the transmission technique, which avoided the heterogeneity of the reflection technique. A fitting treatment based on Gaussian distribution was introduced, and the characteristic parameters of each texture were obtained. The reproduced pole figures based on the characteristic parameters are in good agreement with those obtained by the conventional way, which predicts the main texture components satisfactorily. In principle, an industrial technology for on-line texture determination could be developed based on this technique.

关 键 词：铝合金 热轧板 织构 X射线透射法 

分 类 号：TG113.26[金属学及工艺—物理冶金]