电焊机2025，Vol.55Issue(6)：132-139,8.DOI:10.7512/j.issn.1001-2303.2025.06.18
锆合金包壳管材料的组织与性能研究
Study on the Organization and Properties of Zirconium Alloy Cladding Tubes for Nuclear Power Generation
韩晓瑞 1刘博 1王志刚 1于宏生 1米文俊 1张雪伟 1王云波 1潘胜强1
作者信息
- 1. 中核北方核燃料元件有限公司,内蒙古 包头 014035||中核包头核燃料元件股份有限公司,内蒙古 包头 014035
- 折叠
摘要
Abstract
Zirconium alloy cladding tubes,as key nuclear structural materials,are of great significance for the safety and ser-vice life of nuclear reactors due to their properties and organization.In this paper,the chemical composition,organizational properties and endface quality of imported zirconium alloys,domestic zirconium alloys and domestic new zirconium alloys are analyzed and studied by inductively coupled plasma emission spectrometer/mass spectrometer,scanning electron micro-scope,microhardness tester,and optical three-dimensional profilometer and other equipments.The results show that:the in-ternal Fe and Sn elements of the new domestic zirconium alloys are higher than those of the imported zirconium alloys and domestic zirconium alloys;the grains of the three types of zirconium alloys are fine and uniform;the second phase is mainly the Zr-Nb-Fe phase,and the distribution of particles of the imported zirconium alloys compared to the domestic two types of zirconium alloys is more uniform and fine;the tensile strength and hardness of the domestic zirconium alloys are higher than the remaining two types of alloys,and the elongation at break is lower than that of the remaining two types of alloys.The tensile strength and hardness of domestic zirconium alloy are higher than the other two alloys,and the elongation after break is lower than the other two alloys.The end face roughness of imported zirconium alloys is better than that of the remaining two domestic zirconium alloys.The above study is expected to provide theoretical basis for the subsequent quality control of weld formation,analysis of joint defect formation mechanism and optimization of welding process parameters for zirconium alloy casing pipe materials.关键词
锆合金包壳管/显微组织/力学性能/端面质量Key words
Zirconium alloy cased tubes/microstructure/mechanical properties/end face quality分类
金属材料引用本文复制引用
韩晓瑞,刘博,王志刚,于宏生,米文俊,张雪伟,王云波,潘胜强..锆合金包壳管材料的组织与性能研究[J].电焊机,2025,55(6):132-139,8.
