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...

When an anisotropic material is subject to creep conditions and a complex state of stress, an anisotropic creep damage behavior is observed. Previous research has focused on the anisotropic creep damage behavior of isotropic materials but few constitutive models have been developed for anisotropic creeping solids. This paper describes the development of a new anisotropic tertiary creep damage c...

The importance of gas turbine engines to the aviation industry cannot be overemphasized. Being a major part aircrafts and jets, its reliability must second none. They are continuously subjected extreme conditions during service making them subject constant studies. To produce thrust torque power required them, they have convert intense heat pressure inherent in hot combustion gases. withstand h...