A COMPARATIVE STUDY BETWEEN FSW AND GTAW TECHNIQUES BASED ON POWER CONSUMPTION AND MECHANICAL PROPERTIES OF SAF2507 SUPER DUPLEX STINLESS STEEL | ||||
| Suez Canal Engineering, Energy and Environmental Science | ||||
| Volume 2, Issue 1, July 2024, Page 42-50 PDF (966.5 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/sceee.2024.282140.1019 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
khaled mostafa sakr  1; Ramadan Ibrahim Elsoeudy1; Ahmed Salah Eldin Ali2; Eslam Abd Elaal Mahmoud3
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| 1Mechanical Engineering Department, Faculty of Engineering, Suez Canal University | ||||
| 2Department of Mechanical Engineering, Faculty of Engineering, Suez Canal University, Ismailia, Egypt | ||||
| 3Siemens-energy Company, Cairo, Egypt | ||||
| Abstract | ||||
| This study presents a comparative investigation of both Gas Tungsten Arc Welding (GTAW) and Friction Stir Welding (FSW) techniques for welding SAF 2507 super duplex stainless steel plates. Both fusion and solid-state welding methods are widely utilized in the metal fabrication industry, each offering distinct advantages and limitations. FSW, recognized as a promising solid-state welding approach, is assessed alongside GTAW to validate its efficacy concerning power consumption and weld quality. The welded joints on 6 mm-thick SAF 2507 super duplex stainless steel plates, commonly used in power stations and petroleum service companies, were examined. Additionally, the viability of FSW as a groove filling welding technique was explored. Tungsten carbide tools are utilized to produce butt-joints under specified parameters (applied load 15 KN, rotation speed of 400 rpm, transverse speed 25 mm/min, tilt angle 3 degrees). For comparison, the same SDSS plates were welded using gas tungsten arc welding (GTAW). The joints produced using a 60-degree V-shape groove with a 2 mm root face were examined and characterized using visual inspection, radiographic test, liquid penetrant test, hardness test, and tensile test. The results indicate that FSW was used successfully to weld SDSS joints with a groove-like defect. The comparison aimed to determine which of these welding techniques consumes less energy and produces sound joints. FSW was found to consume less energy and produce better mechanical properties in the weld zone. | ||||
| Keywords | ||||
| Friction stir processing. Super duplex stainless steel. SAF 2507. gas tungsten arc welding; mechanical properties, power consumption | ||||
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