Computational welding mechanics-based approach for the optimization of process parameters in laser welding of IN792 nickel-base alloy
Year: 2025
Type: article
Abstract: Welding and repairing of nickel-base alloys and superalloys plays a crucial role in developing a new sustainability-based world. High power density welding is preferred to conventional arc welding because of its lower heat input that minimizes heat-induced alterations to the material. However, when dealing with nickel-base alloys, the challenge is to obtain a sound joint while avoiding the formation of solidification cracks. The present work is aimed at summarizing the preliminary results of a numerical study about the effects of laser welding parameters on thermal and mechanical fields of IN792 butt-welded joints. The effects of preheating temperature, heat input and welding speed on thermal and residual stress were investigated. Finally, some melt-run trials were carried out and the structural integrity of the obtained samples was discussed based on the numerical results.
Source: Procedia Structural Integrity
Institutions: University of Padua, University of Rome Tor Vergata, Institute of Condensed Matter Chemistry and Technologies for Energy, National Research Council, National Agency for New Technologies, Energy and Sustainable Economic Development, ENEA Casaccia Research Centre, Sapienza University of Rome
Language: English
Subfield: Mechanical Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: diamond
Funder: European Commission
OpenAlex ID: W4412436695