焊管2024，Vol.47Issue(2)：70-78,9.DOI:10.19291/j.cnki.1001-3938.2024.02.011
TC32钛合金TIG焊接接头显微组织及力学性能研究
Study on Microstructure and Mechanical Properties of TIG Welded Joint of TC32 Titanium Alloy
摘要
Abstract
TIG welding test of TC32 was carried out by using different filler materials,and the microstructure and mechanical properties of different areas of the joint were analyzed.Results show that the microstructure of welded joints obtained by using TC4 solid welding wire,TC32 flux cored welding wire,and Ti-Al-V-Zr flux cored welding wire is different.The weld zone can be divided into the upper columnar zone and the lower equiaxed zone macroscopically.There are three different sub zones in the heataffected zone.The hardness of the three welded joints in the heataffected zone is significantly higher than that of the base metal,and the microhardness of each group of joints has the same change trend in the upper,middle and lower regions.Under welding,the strength of the joint is equivalent to that of the base metal,but its plasticity is poor.Compared with solid welding wire,flux cored welding wire is more prone to porosity defects,resulting in a decrease in the strength and toughness of the joint.关键词
TC32钛合金/TIG焊接/填充材料/显微组织/力学性能Key words
TC32 titanium alloy/TIG welding/filling materials/microstructure/mechanical properties分类
矿业与冶金引用本文复制引用
薛添淇,闫少帅,张敏,王新宝,程龙,毛威..TC32钛合金TIG焊接接头显微组织及力学性能研究[J].焊管,2024,47(2):70-78,9.基金项目
陕西省重点研发计划(秦创原"科学家+工程师"队伍建设项目)"航空航天用高品质钛基钎料的设计开发与应用"(项目编号2023KXJ-234) （秦创原"科学家+工程师"队伍建设项目）
西安市科技计划项目(秦创原"科学家+工程师"队伍建设项目)"重点装备用高性能稀贵金属膏状钎料的设计开发及工程化"(项目编号23KGDW0004-2022). （秦创原"科学家+工程师"队伍建设项目）
