A Review Studies on Hard-Facing of Inconel 718 on Stainless Steel 321 and 347 Grades for the Nuclear Reactor Components

Abstract

Corrosion and wear have been a major challenge in most of the industries. There are various surface modification techniques are need to make the desired layer on the substrate such as laser hardfacing, thermal spraying, and Arc welding process because of availability and economical considerations. Arc welds pool are used. Particularly gas metal arc welding (GMAW) having a good deposition. This process has various parameters like welding current, torch speed, filler wire speed, filler metal deposition rate, shielding gas flow rate and types of shielding gases. A lot of attempts were made by the researcher to get low dilution, which usually comprises the essential corrosion resistance and wears. These results will help the researchers in selecting the best suitable welding process and materials used in hardfacing technology. This paper will give guidelines to the researchers to focus on the future scope of hardfacing technology.