Microstructural and mechanical properties of Inconel 718 TIG weldments

Autor: K Saikiran, P. Sampath, S. Venukumar, J. Sai Sashank, Parakrant Sarkar
Rok vydání: 2018
Předmět:
Zdroj: Materials Today: Proceedings. 5:8480-8485
ISSN: 2214-7853
Popis: Inconel 718 is widely used super alloy for high temperature applications in aeronautical and aerospace industries. The present work is to investigate the effect of welding parameters of Inconel 718 alloy welds in the tungsten inert gas (TIG) welding process. Post weld heat treatment (PWHT) was also carried out at 750°C/8h/furnace cooling followed by 650°C/8h/air cooling on the weldments. The microstructural and mechanical properties were studied in base metal (BM), weld zone and heat affected zone (HAZ) with different parameters. Based on the results, the welding parameters were fixed to get the optimum properties for Inconel 718.
Databáze: OpenAIRE