Influence of heat input on the microstructures, mechanical properties, and corrosion behaviour of dissimilar Nimonic 75 superalloy and Nitronic 50 austenitic stainless steel GTA welds

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

Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications

Published online on November 11, 2025

Abstract

Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications, Ahead of Print.
The dissimilar weldments of Nimonic 75 superalloy and Nitronic 50 austenitic stainless steel (ASS) are of great importance for high-temperature structural applications where cost-effectiveness and performance are critical. In this study, dissimilar ...