利用X射线晶面衍射分析方法和扫描电镜观察手段,分析了Bi系超导带材在轧制前后以及热处理前后的晶粒取向性.实验结果表明,轧制工艺导致了有利于超导材料电学性能的晶粒取向性分布,超导晶粒的片平面即(001)晶面沿轧制平面作一致排列,这种取向性在热处理中得到了保留和加强. The crystal orientation of Bi-based superconducting tapes before and after rolling and before and after heat treatment were analyzed by means of X-ray diffraction analysis and scanning electron microscopy. The experimental results show that the rolling process leads to better electrical properties The orientation of the (001) crystal plane of the superconducting grains, ie the plane of the (001) crystal plane along the rolling plane, is retained and strengthened in the heat treatment.