Characterization of Mechanical Properties and Corrosion Resistance of SAF 2205 Duplex Stainless Steel Groove Joints Welded Using Friction Stir Welding Process
Khaled A. Abdelazem1, H. M. Abd El-Aziz2, M. M. Z. Ahmed3, I. G. El-Batanony4

1Khaled A. Abdelazem, PhD student, PETROJET Company, Joseph teto St., Hayekstep, Cairo, Egypt.
2H. M. Abd El-Aziz, Asst. Prof., Mining and petroleum Dept., Faculty of Engineering, Al-Azhar University, Alnasr St., Cairo, Egypt.
3M. M. Z. Ahmed, Prof., Metallurgical and Materials Engineering Department, Faculty of Petroleum and Mining Engineering, Suez University, 43721, Salah Nessim St., Suez, Egypt.
4I. G. El-Batanony, Prof., Mechanical Engineering Dept., Faculty of Engineering, Al-Azhar University, Alnasr St., Cairo, Egypt.
Manuscript received on March 12, 2020. | Revised Manuscript received on March 25, 2020. | Manuscript published on March 30, 2020. | PP: 3428-3435 | Volume-8 Issue-6, March 2020. | Retrieval Number: F8502038620/2020©BEIESP | DOI: 10.35940/ijrte.F8502.038620

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Abstract: The aim of this work is to characterize the effect of groove joint designs on mechanical and corrosion resistance properties of friction stir welded SAF 2205 duplex stainless steel (DSS) 6.5-mm-thick plate. Nondestructive tests (NDT), such as Radiographic Test (RT), and Visual Test (VT), show that, high-quality welds were produced for V grooved joints with, 60 ̊ groove angle, and 2 mm root face, without root gap, with these joints were welded at constant rotating speed of 300 rpm, 25 mm/min traverse welding velocity, and 20 KN down load, using tungsten carbide (WC) base metal conical tool. Evaluating the mechanical properties using destructive tests (DT) such as tensile test, bending test, impact test, Vickers hardness test, showing that, Vickers hardness was increased at the stir zone, the failure was occurred at the base metal, the bending behavior and the impact energy are acceptable, the evaluation of corrosion resistance rate shows that, the corrosion resistance of this joint is higher than that of the base metal. In addition, it was significantly noted that, mechanical properties and corrosion resistance of these joints welded using FSW process are better than that of those joints welded using fusion welding (FW) possesses, shielded metal arc welding (SMAW), and gas tungsten arc welding (GTAW).
Keywords: Duplex Stainless Steels; Friction Stir Welding; Groove Joints; Mechanical Properties; Corrosion Resistance
Scope of the Article: Mechanical Design.