The structural material identified for this work is 15CDV6 steel belongs to the category of High strength low alloy (HSLA) family. This research is conducted in the area of Powdered flux TIG (PFTIG) and Flux bounded TIG (FBTIG) welding with the assistance of optimum process parameters
procured from Grey wolf optimization tool generated in MATLAB software. The optimum nanopowder and flux gap obtained from PFTIG and FBTIG welding are utilized for the fabrication of closed square butt joint. The microstructural characterization of FBTIG weldments is analyzed in Post weld heat
treated (PWHT) condition. The microstructural examinations were conducted with the help of optical and scanning electron microscopy (SEM) to evaluate the structures in the weld zone, Heat affected zone and parent material. The presence of coarse grain structure observed in the WZ leads to
the lower strength and hardness of the weldment. The presence of tempered martensite in the HAZ induces strength and toughness to the region.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.