Abstract Nickel-base superalloys containing 30 to 50% gamma prime (γ') volume fraction are typically used in hot section components (e.g., guide vanes or blades) for power generating gas turbines, and suitable time-dependent properties required long-term elevated temperature operation. Additive manufacturing (AM) has recently been develop complex hot-section parts utilizing innovative designs w...

the current work was carried out to characterize welding of aisi 310 austenitic stainless steel to inconel 657 nickel-chromium superalloy. the welds were produced using four types of filler materials; the nickel-based corresponding to inconel 82, inconel a, inconel 617 and austenitic stainless steels 310. of the two joints involved, this paper describes the choice of welding consumables for the...

Nickel-base superalloys have been used extensively in power generation applications due to their high strength at temperatures up to 1093°C. When the material is subjected to complex mechanical loading superimposed with thermal loading, fatigue interacts with either creep and/or oxidation. Directionallysolidified (DS) materials are often used in place of polycrystalline (PC) materials since the...

Nickel-based alloy metal matrix composite (NAMMC) is a new type of material which expected to replace traditional Nickel-base superalloy used in the manufacture important hot-end components aerospace, naval ships and industrial gas turbine engines due its excellent high temperature strength, superior thermal fatigue resistance, oxidation resistance corrosion resistance. However, these outstandi...

Cr5Mo steel with high thermal strength is frequently applied as the material for hydrocracking furnace tubes. Nonetheless, tubes are prone to failure in a high-temperature environment, threatening production safety. Considering that IN718 nickel-base superalloy has favorable oxidation resistance, coating was fabricated on substrate through laser cladding. The effect of process parameters resist...

Abstract The isothermal planar‐biaxial fatigue behavior was studied for two different disk batches of nickel‐base superalloy Inconel 718 using cruciform specimens at 400°C and 630°C under equi‐biaxial shear loading. Additionally, non‐proportional tests were performed. test results compared with uniaxial reference the von Mises equivalent strain hypothesis, a parameter critical plane, modified c...

This research describes an optimization and rejuvenation of the heat treatment process for a nickel base superalloy grade GTD111 after long-term service. The aging variables examined in this study included primary temperature, time, secondary time. resulting materials were using Taguchi method design experiments to determine material hardness test observed with hot tensile test, scanning electr...

This research describes an optimization and rejuvenation of the heat treatment process for a nickel base superalloy grade GTD111 after long-term service. The aging variables examined in this study included primary temperature, time, secondary time. resulting materials were using Taguchi method design experiments to determine material hardness test observed with hot tensile test, scanning electr...