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Mechanical and corrosion resistant properties of ATIG welded 2205 duplex stainless-steel via different fluxes

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Abstract

In this study, 6 mm thick duplex stainless-steel grade 2205 plate was welded by active tungsten inert gas (ATIG) using different oxide fluxes and the effect of optimal oxide fluxes on structure, mechanical and corrosion properties was systematically analyzed and discussed. Initially, fourteen oxides were tested (SiO2, TiO2, ZnO, MnO2, Cr2O3, Fe2O3, ZrO2, SrO, CaO, MoO3, V2O5, Mn2O3, Co2O3 and MgO). Among these, three candidate oxides, i.e., SiO2, Ti2O and ZnO were selected for further evaluation based on the depth ratio, depth-to-width (D/W), and ultimate tensile strength (UTS) results. By using Minitab 17 software, optimal combinations of these fluxes for maximum penetrations were estimated. The obtained results revealed that the optimal flux composition is 76 % SiO2-24 % ZnO. The results showed that the depth attained by the optimized flux is 2.9 times greater than tungsten inert gas (TIG) weld. The D/W ratio was also improved 3.7 times when contrasted with typical TIG welding. The energy absorbed in fusion zone in the case of ATIG weld is greater when contrasted with TIG weld. It was found that the weld bead obtained with optimal flux combination in ATIG weld can better withstand sudden loads. The obtained UTS value (810 MPa) for ATIG weld was close to parent metal (825 MPa) and greater than the weld produced by TIG welding (766 MPa). However, the corrosion resistant property was found to be slightly decreased for metal welded with ATIG as compared to metal welded by using TIG. These results give a comprehensive guideline for further investigations on TIG welding of 2205 duplex stainless-steel.

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Author information

Authors and Affiliations

  1. Department of Mechanical Engineering, College of Engineering, Prince Sattam bin Abdulaziz University, Al-Karj, 11942, Saudi Arabia

    Hussein Alrobei, Kamel Touileb, Rachid Djoudjou, Abousoufiane Ouis, Abdeljlil Chihaoui Hedhibi & Ibrahim AlBaijan

  2. Department of Mechanical Engineering, National Engineering School of Tunis (ENIT), El-Manar University, P.O.37, Belvedere Tunis, 1000, Tunisia

    Abdeljlil Chihaoui Hedhibi

  3. Department of Metallurgy and Materials Engineering, University of Engineering and Technology, Taxila, 47050, Pakistan

    Rizwan Ahmed Malik

  4. Center of Excellence for Research in Engineering Materials (CEREM), King Saud University, Riyadh, P.O. 800, Saudi, Saudi Arabia

    El-Sayed M. Sherif

  5. Electrochemistry and Corrosion Laboratory, Department of Physical Chemistry, National Research Centre, El-Behoth St. 33, Dokki, 12622, Cairo, Egypt

    El-Sayed M. Sherif

Authors
  1. Hussein Alrobei
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  2. Kamel Touileb
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  3. Rachid Djoudjou
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  4. Abousoufiane Ouis
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  5. Abdeljlil Chihaoui Hedhibi
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  6. Ibrahim AlBaijan
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  7. Rizwan Ahmed Malik
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  8. El-Sayed M. Sherif
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Correspondence to Hussein Alrobei.

Additional information

Hussein Alrobei received a M.S. degree in Mechanical Engineering in 2014 from University of South Florida, United States. He received Ph.D. degree in Mechanical Engineering at University of South Florida, United States from 20152018. Currently, he is working as an Assistant Professor in Mechanical Engineering Department, Prince Sattam Bin Abdulaziz University, Al-Kharj, Saudi Arabia. His research interests include material science, mechanical, physical and photoelectrochemical properties of molybdenum disulfide alpha-hematite nanocomposite films.

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Alrobei, H., Touileb, K., Djoudjou, R. et al. Mechanical and corrosion resistant properties of ATIG welded 2205 duplex stainless-steel via different fluxes. J Mech Sci Technol 35, 5469–5476 (2021). https://doi.org/10.1007/s12206-021-1118-7

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  • DOI: https://doi.org/10.1007/s12206-021-1118-7

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