摘要
为探究Zr-Sn-Nb合金带材织构对其不同方向力学性能的影响,采用电子背散射衍射技术(EBSD)和拉伸试验分别对成品退火态Zr-0.85Sn-1Nb-0.3Fe合金带材的织构及不同方向力学性能进行系统分析。结果表明,合金带材中形成了典型的基面双峰织构,导致了力学性能的各向异性。随拉伸加载方向与轧制方向(RD)夹角的增大,带材主要滑移系的Schmid因子呈下降趋势,使得滑移系开启难度增大,屈服强度和屈强比增大,抗拉强度和硬化指数降低,Zr-Sn-Nb合金带材在RD上具有相对较好的冲压成形能力。
In order to explore the influence of the texture of the Zr-Sn-Nb alloy strip on its mechanical properties in different directions,the texture and mechanical properties in different directions of the finished annealed Zr-0.85Sn-1Nb-0.3Fe alloy strip were systematically analyzed by Electron Backscatter Diffraction(EBSD) and tensile test.The results showed that the typical bimodal basal texture was formed in the alloy strip,leading to the anisotropy of mechanical properties.With the increase of the angle between the loading direction and the RD(Rolling Direction),the Schmid factor of the main slip system in the strip showed a decreasing trend,which increased the opening difficulty of the slip system.Also the yield strength and yield ratio increased,while the tensile strength and work-hardening index decreased.As a result,the Zr-Sn-Nb alloy strip has relatively better stamping formability in the RD.
作者
崔怡然
杨忠波
刘然超
邓传东
王晓敏
邱军
徐春容
Cui Yiran;Yang Zhongbo;Liu Ranchao;Deng Chuandong;Wang Xiaomin;Qiu Jun;Xu Chunrong(Science and Technology on Reactor Fuel and Materials Laboratory,Nuclear Power Institute of China,Chendu,610213,China)
出处
《核动力工程》
EI
CAS
CSCD
北大核心
2023年第S01期131-136,共6页
Nuclear Power Engineering
基金
中核集团集中研发项目(中核科发〔2022〕377号)。
