华东交通大学学报2025，Vol.42Issue(1)：113-119,7.
焊接填料中Ti对SiCp/6061Al激光填粉焊接头的影响
Effect of Ti in the Welding Filler on Laser Powder-Filled Welded Joints of SiCp/6061Al
摘要
Abstract
Aluminum matrix composites are a type of excellent structural material,however,their poor weldabili-ty necessitates significant improvements in joint properties.Ti was introduced into a CoCrNi-reinforced AlSi12 filler during laser powder-filled welding of SiCp/6061Al composites to investigate its influence on the welded joints.The results show that the Ti is evenly distributed in the weld,and TiNi3 phase is formed around the CoCrNi phase,Additionally,the CoCrNi phase changes from the coarse dendritic shape to the fine triangular shape,contributing to solid solution strengthening,dispersion strengthening,and fine grain strengthening.The in-terface of the fusion zone of the welded joint was clear,with no reaction products generated at the interface,forming a good physical metallurgical interface.After adding Ti to the welding filler,the weld hardness in-creased by 30%,and the tensile strength and extension of the welded joint increased at the same time.When per-forming SiCp/6061Al laser filler welding,adding Ti to CoCrNi reinforced AlSi12 mixed filler can effectively im-prove the quality of welded joints and improve mechanical properties.关键词
SiCp/6061Al/激光填粉焊接/Ti元素添加/焊接接头组织/力学性能Key words
SiCp/6061Al/laser welding with powder filling/Ti addition/welding joint organization/mechanical property分类
金属材料引用本文复制引用
赵明娟,王高昱,赵龙志,李宇欣,于泓冰,张钦文,穆晨鹏..焊接填料中Ti对SiCp/6061Al激光填粉焊接头的影响[J].华东交通大学学报,2025,42(1):113-119,7.基金项目
国家自然科学基金项目(51965022) （51965022）
