Influence of a Ni-interlayer addition on microstructure, mechanical properties and corrosion resistance of dissimilar joints between Nimonic 75 alloy/Nitronic 50 steel using gas tungsten arc welding

Ashutosh Padhan, Sumitra Sharma, Department of Mechanical Engineering, National Institute of Technology Silchar

Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering

Published online on January 20, 2026

Abstract

Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering, Ahead of Print.
The study investigates the effects of incorporating a nickel interlayer on the dissimilar metal weld (DMW) between Nimonic 75 superalloy (N75) and Nitronic 50 steel (N50) using the gas tungsten arc welding technique. A comparative investigation was made ...