机械制造与自动化2025，Vol.54Issue(5)：27-30,4.DOI:10.19344/j.cnki.issn1671-5276.2025.05.005
R60702锆合金和Ti6Al4V钛合金电阻点焊的微观组织与力学性能研究
Research on Microstructure and Mechanical Properties of R60702 Zirconium Alloy and Ti6Al4V Alloy Resistance Spot Welding Joints
摘要
Abstract
In order to achieve the lightweight of nuclear energy equipment,resistance spot welding of zirconium alloy and titanium alloy was studied,and the welding formation,the microstructure of the nugget and the mechanical property of the joint were analyzed.The results indicated that the welding joint appeared as an asymmetric nugget due to the differences in the physical properties of the base metal,and the size of the nugget zone had positive relation with the welding current increasing,the nugget zone diameter reached to 6.6 mm when the welding current was 12 kA.(Zr,Ti)solid solution was observed in the nugget,and the crisscrossing micro-martensite was formed in Ti6Al4V side.The tensile result showed that the peak tensile-shear load first increased and then decreased with the current increasing,the peak tensile-shear load reached the maximum value of 7.75 kN when the welding current reached 10 kA.And the fracture characteristics changed from brittle fracture to plastic fracture,the fracture failure mode changed from interfacial fracture mode to pull-out fracture mode with the increase of current.关键词
焊接/锆合金/钛合金/微观组织Key words
welding/zirconium alloy/titanium alloy/microstructure分类
矿业与冶金引用本文复制引用
唐顺安,孙佳奇,高明月,陈兵兵,罗震..R60702锆合金和Ti6Al4V钛合金电阻点焊的微观组织与力学性能研究[J].机械制造与自动化,2025,54(5):27-30,4.基金项目
国家自然科学基金资助项目(U21B2079) （U21B2079）
