Teker, T.Aydın, S.Yılmaz, Serdar Osman2023-05-062023-05-0620230025-5300https://doi.org/10.1515/mt-2022-0422https://hdl.handle.net/20.500.11776/11924AISI 1040 and AISI 304 steel plates of 10 mm were joined without pretreatment by double-sided TIG arc welding (DSAW). Joints were manufactured by using welding currents of 420, 440, and 460 A. The microstructural variations in the interface of the weld samples were defined by optical microscopy, scanning electron microscopy, energy dispersive spectroscopy and microhardness analysis. V-notch impact and tensile tests were done to detect the weld strength of the weld samples. In DSAW welding of different steels, a full penetration joint was achieved without opening the weld edge. The current intensity had a major effect on the symmetrical and hourglass shape in welds. Welding at 460 (A) showed acceptable joint quality. Tensile and impact energy quantities of welded joints had significant ratios. Fractures in the weld metal of the samples were ductile mode. © 2022 Walter de Gruyter GmbH, Berlin/Boston.en10.1515/mt-2022-0422info:eu-repo/semantics/closedAccessAISI 1040AISI 304DSAWimpact testTIGAustenitic stainless steelDuctile fractureEnergy dispersive spectroscopyGas weldingScanning electron microscopyTensile testingAISI 1040AISI 304Aisi-304Double sidedDouble-sided TIG arc weldingImpact testJoint performanceMedium-carbon steelsTIGTIG arc weldingWeldsArticle6522672782-s2.0-85147544746Q2