Abstract
In this study, Inconel 625 nickel alloy and UNS 31803 duplex stainless steel (DSS) dissimilar pairs were welded with MIG welding process. Weld metal, obtained with ERNiCrMo-3 filler wire, was subjected to mechanical and microstructural investigations. Notch impact test and micro hardness measurements were realized on weld metal in order to evaluate31803 mechanical properties. Microstructural changes in fusion line of the base metals were examined using optical and electron microscopes. Phase precipitations rich of Ti and Mo elements were detected among dendritic austenite arms in the weld metal. It was observed that ERNiCrMo-3 filler metal had sufficient toughness because of high nickel content.
Keywords
Materials science
Metallurgy
Welding
Alloy
Austenite
Inconel 625
Filler metal
Nickel
Inconel
Toughness
Base metal
Optical microscope
Microstructure
Scanning electron microscope
Composite material
Arc welding
Subject Areas
Welding Techniques and Residual Stresses
·Mechanical Engineering ·Physical Sciences
Hydrogen embrittlement and corrosion behaviors in metals
·Metals and Alloys ·Physical Sciences
Microstructure and Mechanical Properties of Steels
·Mechanical Engineering ·Physical Sciences
Citations by Year
2020: 1
2022: 1
2023: 2
2024: 3
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