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Effects of ATIG Welding on Weld Shape, Mechanical Properties, and Corrosion Resistance of 430 Ferritic Stainless Steel Alloy

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Department of Mechanical Engineering, College of Engineering in Al-Kharj, Prince Sattam bin Abdulaziz University, P.O. Box 655, Al-Karj 11942, Saudi Arabia
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National Engineering School (ENIT), University of Tunis El Manar, P.O. Box 37, Tunis 1002, Tunisia
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Center of Excellence for Research in Engineering Materials (CEREM), King Saud University, P.O. Box 800, Al-Riyadh 11421, Saudi Arabia
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Electrochemistry and Corrosion Laboratory, Department of Physical Chemistry, National Research Centre, El-Behoth St. 33, Dokki, Cairo 12622, Egypt
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Mechanical Design and Materials Department, Faculty of Energy Engineering, Aswan University, Aswan 81521, Egypt
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Author to whom correspondence should be addressed.
Metals 2020, 10(3), 404; https://doi.org/10.3390/met10030404
Received: 14 February 2020 / Revised: 15 March 2020 / Accepted: 16 March 2020 / Published: 22 March 2020
Flux activated tungsten inert gas (ATIG) welding is a variant of tungsten inert gas (TIG) welding process with high production efficiency, high quality, low energy consumption, and low cost. The study of activating flux mechanism by increasing weld penetration has direct significance in developing flux and welding process. This study has been conducted on 430 ferritic stainless steel alloy. Design of experiment is used to get the best formulation of flux. Based on Minitab17 software, nineteen compositions of flux were prepared using the mixing method. Fluxes are combinations of three oxides (MoO3-TiO2-SiO2). Using the optimizer module available in Minitab 17 software, the best formulation was obtained to achieve the best weld depth. Hence, the obtained depth is twice greater than that achieved by conventional TIG welding. Moreover, mechanical properties and corrosion resistance have been investigated for TIG and ATIG welds respectively in tensile, impact, and hardness tests, and in potentiodynamic polarization measurement test. View Full-Text
Keywords: ATIG; ferritic stainless steel; weld shape; mechanical properties; corrosion resistance ATIG; ferritic stainless steel; weld shape; mechanical properties; corrosion resistance
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Touileb, K.; Ouis, A.; Djoudjou, R.; Hedhibi, A.C.; Alrobei, H.; Albaijan, I.; Alzahrani, B.; Sherif, E.-S.M.; Abdo, H.S. Effects of ATIG Welding on Weld Shape, Mechanical Properties, and Corrosion Resistance of 430 Ferritic Stainless Steel Alloy. Metals 2020, 10, 404.

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