International Journal of Mineral Processing and Extractive Metallurgy

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Microstructure Analysis and Numerical Simulation of Laser Welded Dissimilar Ti Alloy-SS Joint Using V Interlayer

Pulsed laser welding of TC4 Titanium (Ti) alloy to SUS301L stainless steel (SS) was applied with pure V employed as an interlayer. Microstructures of the joints were studied using scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS) and X-ray diffraction (XRD). Mechanical properties of the joints were evaluated by performing tensile tests. The two pass welding was employed, and two welding zones were formed. The unmelted V interlayer served as a barrier to mixing of the two base materials in the welding. In the meantime, the unmelted V served as a diffusion barrier between Ti and Fe avoiding formation of the Ti-Fe intermetallics. The temperature field and stress field distributed in laser welding based on Ti alloy-V-SS joint were dynamically simulated using the COMSOL in this study. Given the characteristics of laser welding, a Gauss body heat source was employed in the study to model the laser welding of joint by studying the temperature relativity of the thermal physical parameters of material, as well as the latent heat of fusion. By comparing the simulation results with the corresponding experimental findings, the validity of the numerical model is confirmed.

Two Pass Welding, V Interlayer, Microstructure, Numerical Simulation, Temperature Field, Stress Field

APA Style

Yuqiang Liu, Yan Zhang, Daqian Sun, Xiaoyan Gu, Hongmei Li. (2022). Microstructure Analysis and Numerical Simulation of Laser Welded Dissimilar Ti Alloy-SS Joint Using V Interlayer. International Journal of Mineral Processing and Extractive Metallurgy, 7(3), 65-74. https://doi.org/10.11648/j.ijmpem.20220703.11

ACS Style

Yuqiang Liu; Yan Zhang; Daqian Sun; Xiaoyan Gu; Hongmei Li. Microstructure Analysis and Numerical Simulation of Laser Welded Dissimilar Ti Alloy-SS Joint Using V Interlayer. Int. J. Miner. Process. Extr. Metall. 2022, 7(3), 65-74. doi: 10.11648/j.ijmpem.20220703.11

AMA Style

Yuqiang Liu, Yan Zhang, Daqian Sun, Xiaoyan Gu, Hongmei Li. Microstructure Analysis and Numerical Simulation of Laser Welded Dissimilar Ti Alloy-SS Joint Using V Interlayer. Int J Miner Process Extr Metall. 2022;7(3):65-74. doi: 10.11648/j.ijmpem.20220703.11

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This article is an open access article distributed under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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