Effect of Niobium on the Thermal Stability and Mechanical Properties of a Low-Carbon Ultrafine Grain Steel

Zhang, Qingxiao; Wang, Wei; Yuan, Qing; Wang, Zhoutou; Zhang, Zhicheng; Xu, Guang

doi:10.1007/s12540-022-01352-z

Cited by 2 publications

(2 citation statements)

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“…There is a layer of about 50 µm thickness on the titanium side, referred to as the T layer, which is composed of Fe and Nb in the solid solution of Ti [54]. Zhang et al [61] found 8 µm thick Fe2Nb+α-Fe and 14 µm thick Fe2Nb on the Nb/Q235 side, and detected a 25 µm thick compound layer on the Nb/Ti side, which is the supersaturated solid solution of Nb in Ti.…”

Section: Nb Interlayermentioning

confidence: 99%

“…The shear strength of the material increases first and then decreases with the increase in interlayer thickness. As the number of Nb interlayers increases, the shear strength of welded joints also increases first and then decreases [61]. When the thickness of the Nb layer is 300 µm, the joint shear load reaches a maximum of 6.29 kN.…”

Section: Influence Of Interlayer Thickness On Shear Strength Of Jointsmentioning

confidence: 99%

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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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Section: Nb Interlayermentioning

confidence: 99%

Section: Influence Of Interlayer Thickness On Shear Strength Of Jointsmentioning

confidence: 99%