材料工程2025，Vol.53Issue(2)：133-141,9.DOI:10.11868/j.issn.1001-4381.2023.000445
超声辅助SiO2纳米颗粒强化铝/铜等离子弧熔钎焊工艺
Ultrasonic assisted SiO2 nanoparticles strengthened Al/Cu plasma arc fusion brazing welding process
摘要
Abstract
The joining of aluminum/copper dissimilar metals is successfully achieved by ultrasonic-assisted nano-enhanced plasma arc fusion brazing,and a well-formed aluminum/copper lap joint is obtained.The effects of ultrasonic waves and SiO2 nanoparticles on the macroscopic and microscopic morphology,organizational structure,mechanical properties and conductive properties of lap joints are analyzed and studied by SEM,EDS,XRD,tensile test and conductivity test.The results show that the lap joint is obtained under the coupling action of ultrasonic waves and SiO2 nanoparticles,and the spreading and wetting effect of liquid aluminum on the copper surface is better,the front side of the weld is well formed,and the joint is mainly composed of intermetallic compound layer region and Al-Cu eutectic region.The thickness of the intermetallic compound layer is reduced obviously,and the mechanical properties of the joint is significantly improved.The relative conductivity of the aluminum/copper joint using SiO2 nanoparticles and ultrasonic waves is 153.527％IACS,exhibiting improved mechanical properties and electrical conductivity.关键词
超声振动/SiO2纳米颗粒/金属间化合物/力学性能/导电性能Key words
ultrasonic vibration/SiO2 nanoparticle/intermetallic compound/mechanical property/electrical conductivity分类
矿业与冶金引用本文复制引用
樊丁,张欢,黄健康,李岩,谢宇航..超声辅助SiO2纳米颗粒强化铝/铜等离子弧熔钎焊工艺[J].材料工程,2025,53(2):133-141,9.基金项目
国家自然科学基金项目(52165045) （52165045）
甘肃省科技重大专项(22ZD6GA008) （22ZD6GA008）
