HETEROGENEOUS MICROSTRUCTURE AND TEXTURE EVOLUTION DURING FABRICATION OF Zr-Sn-Nb ZIRCONIUM ALLOY SHEETS
HETEROGENEOUS MICROSTRUCTURE AND TEXTURE EVOLUTION DURING FABRICATION OF Zr-Sn-Nb ZIRCONIUM ALLOY SHEETS
复制标题
DOI：
10.3724/sp.j.1037.2011.00809
复制
发表时间：
2013-02
影响因子：
2.3
通讯作者：
C. Jianwei;Luan Baifeng;C. Linjiang;Yu Hongbing;L. Qing;Z. Jun;Li Zhongkui
中科院分区：
文献类型：
--
作者：
C. Jianwei;Luan Baifeng;C. Linjiang;Yu Hongbing;L. Qing;Z. Jun;Li Zhongkui
锆合金具有低的中子吸收截面、良好的耐腐蚀性和可接受的力学性能，被广泛用作核反应堆的燃料包壳和结构材料。这些性能在很大程度上取决于微观结构和织构特征，如晶粒形态、晶粒尺寸、晶体织构和析出物分布。为了优化制造工艺和提高使用性能，有必要了解制造过程中的微观组织和织构演变。利用XRD, SEM-ECC, TEM和EBSD技术, 研究了Zr-Sn-Nb系新型锆合金板材加工过程的微观组织及织构演变.结果表明：热轧后，β淬火形成的随机织构转变为倾斜基面织构。基底结构在以下几个阶段保持稳定
Zirconium alloys are widely used as fuel cladding and structural materials for nuclear reactors due to the low neutron absorption cross-section, good corrosion resistance and acceptable mechanical properties. These properties are greatly dependent on microstructural and textural features, such as grain morphology, grain size, crystallographic texture and distribution of precipitates. It is necessary to understand microstructure and texture evolution during fabrication in order to optimize the manufacturing process and to improve the service performance. In this work, microstructure and texture evolution during fabrication of Zr-Sn-Nb new zirconium alloy sheets are investigated using XRD, SEM-ECC, TEM and EBSD. The results show that the random texture formed by β quenching transforms into tilt basal texture after hot rolling. The basal texture keeps stable during the following