Effect of Fe_(2)O_(3)nanoparticle on the interface microstructure and properties of Al/Cu plasma arc fusion-brazing joints  

作　　者：李岩 杨楠 樊丁 黄健康 张欢 Li Yan;Yang Nan;Fan Ding;Huang Jiankang;Zhang Huan(Materials Science and Engineering College,Lanzhou University of Technology,Lanzhou 730050,China;State Key Laboratory of Advanced Processing and Recycling of Non-Ferrous Metals,Lanzhou 730050,China)

机构地区：[1]Materials Science and Engineering College,Lanzhou University of Technology,Lanzhou 730050,China [2]State Key Laboratory of Advanced Processing and Recycling of Non-Ferrous Metals,Lanzhou 730050,China

出　　处：《China Welding》2023年第3期10-20,共11页中国焊接（英文版）

基　　金：This work was supported by the National Natural Science Foundation of China(No.52165045).

摘　　要：The lap joint of T2 copper plate and 1060 pure aluminum plate was made by using the plasma arc welding method with adding Fe_(2)O_(3)nanoparticles in different proportions.The research analysis found that the thickness of the IMC(intermetallic compound)and eutect-ic region decreased after the addition of nanoparticles due to its inhibitory effect.When the proportion of Fe_(2)O_(3)nanoparticles is 3%,the in-terface intermetallic compound layer is the thinnest.However,after this ratio is continuously increased,the inhibition effect is weakened by the agglomeration of nanoparticles,and the thickness begins to increase significantly.The mechanical and electrical properties of the joint are mainly affected by the thickness of the IMC layer.Excessive nanoparticles are agglomerated into large particles with high resistivity.Therefore,the tensile strength and relative electrical conductivity of the joint are first increasing and then decreasing with the increase of nanoparticle ratio.When the proportion of nanoparticles is 3%,the tensile strength and electrical conductivity are maximum.

关 键 词：Aluminum-copper dissimilar metals Fe_(2)O_(3)nanoparticles intermetallic compound mechanical properties conductive properties 

分 类 号：TG407[金属学及工艺—焊接]