Abstract - Inconels 792 are nickel-base superalloy material that has high strength and creep resistance at
temperature near their melting point. This material is commonly used in aircraft gas turbine (jet) engines,
where parts or components are subjected to high temperature and high stress. Not-withstanding the high-
temperature capabilities of the alloys, during service the parts are often damaged by hot gas erosion and
other types of mechanism. Welding is one of the repair method available nowadays. The application is
typically accomplished by Gas Tungsten Arc Welding (GTAW). Unfortunately, however, these superalloys
also have limited ductilities at elevated temperatures, and are consequently subject to cracking due to
differential thermal strains in some temperature ranges, a phenomenon termed “strain-age” cracking. The
solution proposed is Superalloy Welding at Elevated Temperature (SWET). Elevating temperature on the
parts or components that are to be welded probably could reduce the thermal gradient occurred, thus
creating a crack-free weldments. Also elevated temperature could reduce the amperage needed to
achieve the welding temperature, hence lower electricity and cost are resulted
