EXPERIMENTAL INVESTIGATION ON THE MICROSTRUCTURE AND MECHANICAL PROPERTIES OF DSS2205 AND SS304L DISSIMILAR WELDMENTS

M. Murugan, G. Selvakumar, T. Ramkumar and M. Selvakumar
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M. Murugan: Department of Mechanical Engineering, Sri Sivasubramaniya Nadar College of Engineering, Chennai 603110, India
G. Selvakumar: Department of Mechanical Engineering, Sri Sivasubramaniya Nadar College of Engineering, Chennai 603110, India
T. Ramkumar: ��Department of Mechanical Engineering, Dr. Mahalingam College of Engineering and Technology, Pollachi 642003, India
M. Selvakumar: ��Department of Automobile Engineering, Dr. Mahalingam College of Engineering and Technology, Pollachi 642003, India

Surface Review and Letters (SRL), 2024, vol. 31, issue 10, 1-8

Abstract: This paper outlines the TIG welding process without using active flux for 4mm-thick plates of duplex stainless steel (DSS 2205) and austenitic stainless steel (SS 304L). It also provides the properties and behavior analysis of weldments. Complete penetration is achieved with multi-pass welding. The microstructure is examined using an optical microscope (OM) and a scanning electron microscope (SEM). It was used to report on the differences between the unpolished zone and the heat-affected zone (HAZ) in weldments. A Vickers hardness tester (HV scale 10) was used to assess the weldment’s hardness. Tensile and bend failure were among the mechanical properties exhibited by the parent metals of DSS2205, SS304L, and dissimilar junctions. The findings demonstrated shallow gaps in the surface area and a greater ultimate tensile strength of 600MPa for DSS similar welding. However, compared to other similar weldments, dissimilar weldments exhibit superior performance in bending conditions.

Keywords: DSS2205; SS304L; gas Tungsten arc-welding; structural and mechanical properties (search for similar items in EconPapers)
Date: 2024
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DOI: 10.1142/S0218625X24500823

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