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Numerical and experimental analysis of temperature distribution and melt flow in fiber laser welding of Inconel 625

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Abstract

In these days, laser is a useful and valuable tool. Low input heat, speed, accuracy, and high controllability of laser welding have led to widespread use in various industries. Nickel-based superalloys are creep-resistant materials used in high-temperature conditions. Also, these alloys have high strength, fatigue, and suitable corrosion resistance. Inconel 625 is a material that is strengthened by a complex deposition mechanism. Therefore, the parameters related to laser welding affect the microstructure and mechanical properties. Therefore, in this study, the effect of fiber laser welding parameters on temperature distribution, weld bead dimensions, melt flow velocity, and microstructure was investigated by finite volume and experimental methods. In order to detect the temperature history during continuous laser welding, two thermocouples were considered at a distance of 2 mm from the welding line. The heat energy from the laser beam was modeled as surface and volumetric heat flux. The results of numerical simulation showed that Marangoni stress and buoyancy force are the most important factors in the formation of the flow of liquid metal. Enhancing the laser power to 400 W led to the expansion of the width of the molten pool by 1.44 mm, which was in good agreement with the experimental results. Experimental results also showed that increasing the temperature from 500 °C around the molten pond leads to the formation of a coarse-grained austenitic structure.

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Funding

Dr. Iskander Tlili would like to thank Deanship of Scientific Research at Majmaah University for supporting this work under the Project No. R-2022-3.

Author information

Authors and Affiliations

  1. Physics Department, College of Science, Al-Zulfi, Majmaah University, AL-Majmaah, 11952, Saudi Arabia

    Iskander Tlili

  2. Department of Mathematics, Faculty of Arts and Sciences, Cankaya University, Ankara, Turkey

    Dumitru Baleanu

  3. Lebanese American University, 11022801 Beirut, Lebanon

    Dumitru Baleanu

  4. Department of Medical Research, China Medical University Hospital, China Medical University, Taichung, Taiwan

    Dumitru Baleanu

  5. Department of Nutrition, Cihan University-Erbil, Erbil, Kurdistan Region, Iraq

    S. Mohammad Sajadi

  6. Department of Phytochemistry, SRC, Soran University, Soran, KRG, Iraq

    S. Mohammad Sajadi

  7. Department of Chemical and Process Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia (UKM), 43600, Bangi, Selangor, Malaysia

    Ferial Ghaemi

  8. Radiology and Medical Imaging Department, College of Applied Medical Sciences, Prince Sattam bin Abdulaziz University, Al-Kharj, Saudi Arabia

    Moram A. Fagiry

Authors
  1. Iskander Tlili
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  2. Dumitru Baleanu
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  3. S. Mohammad Sajadi
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  4. Ferial Ghaemi
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Contributions

Tlili, Sajadi, and Ghaemi conducted methodology, software, and validation; Baleanu and Sajadi conducted the experimental test and analysis of the data; Tlili, Baleanu, and Ghaemi wrote the paper; Fagiry and Tlili and Baleanu have done the revise of the paper.

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Correspondence to Dumitru Baleanu.

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Tlili, I., Baleanu, D., Mohammad Sajadi, S. et al. Numerical and experimental analysis of temperature distribution and melt flow in fiber laser welding of Inconel 625. Int J Adv Manuf Technol 121, 765–784 (2022). https://doi.org/10.1007/s00170-022-09329-3

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  • DOI: https://doi.org/10.1007/s00170-022-09329-3

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