This paper presents a coupled approach able to describe γ'' precipitation evolution and associated yield strength after various thermal treatments in inconel 718 alloy. The precipitation state is modeled via the implementation of classical nucleation growth theories for plate-shaped particles. model validated through small-angle neutron scattering transmission electron microscopy experiments. s...

A new electron beam smelting technology was employed to prepare the Inconel 718 alloy, and microstructure evolution nucleation coarsening mechanisms of γ', γ″ δ phase this alloy investigated. The microstructures can be refined by means smelting, good stability is observed at 700 °C, which least 20 °C beyond limiting temperature that sustain for prolonged periods. γ' precipitates could formed in...