Strong and reliable dissimilar brazing titanium to copper using niobium diffusion barrier

Liu, Mengen; Bai, Li; Deng, Yongqiang

doi:10.1016/j.matlet.2020.127720

Cited by 7 publications

(2 citation statements)

References 16 publications

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“…The copper base metal and the welding wire were melted, and the titanium base metal was hardly melted, which could prevent a large amount of Ti element from dissolving into the weld seam and forming excessive Ti-Cu IMCs. The solid-phase welding, such as brazing, explosive welding, diffusion welding and friction welding are considered to be the most effective welding methods to realize the joining of Ti and Cu dissimilar metal [16][17][18][19][20]. Liu et al [16] have verified the feasibility of Nb as a diffusion barrier to join the titanium/copper by brazing.…”

Section: Introductionmentioning

confidence: 99%

“…The solid-phase welding, such as brazing, explosive welding, diffusion welding and friction welding are considered to be the most effective welding methods to realize the joining of Ti and Cu dissimilar metal [16][17][18][19][20]. Liu et al [16] have verified the feasibility of Nb as a diffusion barrier to join the titanium/copper by brazing. The joining strength of welded joint comparable to that of the copper base metal was achieved.…”

Section: Introductionmentioning

confidence: 99%

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The microstructure and mechanical properties of titanium/copper welded joint by FSW

Zhou

Wei

et al. 2022

Materials Science and Technology

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The dissimilar metal of Ti6Al4V and T2 were joined using a butt joint with and without an intermediate layer Ag by friction stir welding. The interfacial Ti–Cu IMCs of both joints are composed of Ti2Cu, TiCu and Ti3Cu4, and the thicknesses are about 1.5 μm and 3 μm, respectively. The intermediate layer Ag can promote the diffusion of Ti to Cu side, and the diffusion of Ti elements plays a dominant role in the formation of Ti–Cu IMCs. The joint with the intermediate layer Ag presents a higher tensile strength, which is about 70% of the Cu base metal. The fracture characteristics of both types of the joints are brittle fracture, but the tensile fracture regions are different.

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