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.
出处
《北京科技大学学报》
EI
CAS
CSCD
北大核心
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)
关键词
铝合金
热轧板
织构
X射线透射法
aluminum alloy
hot bands
texture
X-ray transmission technique
