Characterization of Pulsed Laser Welded Titanium Alloy and Stainless Steel Joint Using Nb as Interlayer

Zhang, Yan; Zhou, Jianping; Sun, Dongbai; Gu, Xiaoyan

doi:10.1002/srin.202000635

Cited by 4 publications

(1 citation statement)

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“…Secondly, the interlayer metal does not combine with titanium or steel to form brittle intermetallic compounds, or the resulting compounds have a brittleness better than Fe-Ti intermetallic compounds [26,27]. At present, the interlayer mainly used by researchers are Cu [28][29][30], Ni [31,32], Ta [33], V [34], Nb [35,36], Ag [25] and Al [37][38][39][40]. For example, Ni and Fe do not form intermetallic compounds.…”

Section: Introductionmentioning

confidence: 99%

Effects of Interlayer on the Microstructure and Mechanical Properties of Resistance Spot Welded Titanium/Steel Joints: A Short Review

Liu,

Zhang

2024

Metals

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In this paper, the influence of interlayer on titanium/steel dissimilar metal resistance spot welding is reviewed from the aspects of macroscopic characteristics, microstructure and interface bonding properties of the joint. Previous studies have demonstrated that TiC, FeTi and Fe2Ti intermetallic compounds with high brittleness are formed in the joint during titanium/steel welding, which reduces the strength of the welded joint. Researchers proposed different interlayer materials, including Cu, Ni, Nb, Ta, 60%Ni-Cu alloy and BAg45CuZn. Firstly, adding an interlayer can weaken the diffusion of Fe and Ti. Secondly, the interlayer elements can combine with Fe or Ti to form solid solutions or intermetallic compounds with lower brittleness than Fe–Ti compounds. Finally, Cu, Ni, Ag, etc. with excellent ductility can effectively decrease the generation of internal stress, which reduces the formation of defects to improve the strength of the joint.

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