The Ni-based Hastelloy X (HX) superalloy is widely used in aero-engine components because of its exceptional high-temperature strength and oxidation resistance. Given the complex structure such parts, additive manufacturing (AM) technologies as laser powder bed fusion (LPBF) are employed to manufacture these components. HX alloy suffers from crack susceptibility during LPBF process, however. In...

Abstract The use of molten-salt–based energy production and storage systems requires high-temperature corrosion- creep-resistant structural materials. This study investigated the microstructure evolution corrosion characteristics Hastelloy N under working stress in a molten salt environment. Selective diffusion Cr at grain boundaries (GBs) degraded properties GBs, making them preferred location...

Superalloys are a much-needed material for abundant engineering fields, such as nuclear-powered reactor components and aeronautics. Owing to their exceptional characteristics, higher thermal conductivity, they can be difficult machine using conventional processes. Modern approaches machining have evolved utilize these materials. One of the techniques studied in this project is electrical discha...

Abstract Hastelloy C-276 is a nickel-based alloy with high strength and corrosion resistance at cryogenic to temperatures. The issue of shallow penetration by Tungsten Inert Gas (TIG) welding was addressed in the current investigation applying A-TIG variable oxide flux. In investigation, constant conditions were used perform TIG using SiO 2 , TiO 50% mixture + weld bead width depth profile meas...