金属加工（热加工）Issue(8)：72-76,5.
端面粗糙度对锆合金包壳管脉冲TIG焊接接头组织及性能的影响
Effect of end face roughness on microstructure and properties of pulse TIG welded joint of zirconium alloy cladding tube
韩晓瑞 1米文俊 1王云波 1于宏生 1刘博 1张雪伟 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
This paper focuses on the effect of end face roughness on the organization and mechanical properties of pulsed TIG welded joints of zirconium alloy clad tubes.It has been shown that the reduction in end face roughness value significantly improves the weld surface quality and reduces water ripple defects,resulting in better weld shaping.Microstructure analysis shows that the weld zone organization is mainly composed of α+α′+β phases,and the heat affected zone is mainly α+β phase organization.The reduction of end face roughness value helps to the uniform flow of liquid metal inside the molten pool,and can suppresses the abnormal growth of local grains.It improves the uniform consistency of the welded joint organization.The mechanical properties test results show that the reduction of end face roughness value can optimize the welding thermal process,further improve the tensile strength and elongation after break of the welded joint,and the hardness of the weld zone is more uniform.This study elucidates the influence of end face roughness on the quality of welded joints,and provides a scientific basis and practical guidance for the high-quality welding of zirconium alloy cladding tubes.关键词
锆合金包壳管/脉冲TIG焊接/钨极间距/端面粗糙度/组织性能Key words
zirconium alloy cladding tubes/pulsed TIG welding/tungsten spacing/end face roughness/organizational properties引用本文复制引用
韩晓瑞,米文俊,王云波,于宏生,刘博,张雪伟,潘胜强..端面粗糙度对锆合金包壳管脉冲TIG焊接接头组织及性能的影响[J].金属加工（热加工）,2025,(8):72-76,5.
