The anisotropic fatigue properties of three Ni-based SX superalloys (AM1, CMSX-4 and MC-NG) were investigated in the very high cycle regime at 20 kHz, R = ?1 750 °C. testing shows that [111] orientation has higher lives stresses lower low compared to standard [001] orientation. At stresses, resolved shear stress on octahedral slip systems explains anisotropy effect. pseudo-cube matrix becomes p...

manufactured single crystal components using ni-base super alloys are routinely used in the hotsections of aero engines and industrial gas turbines due to their outstanding high temperaturestrength, toughness and resistance to degradation in corrosive and oxidative environments. tocontrol the quality of the single crystal turbine blades, particular attention has been paid to grainselection, whi...

Abstract Super-solidus hot isostatic pressing (SSHIP) heat treatment has first been developed and applied to the third-generation Ni-base single crystal superalloy CMSX-10 K. This new type of aims at significantly reducing total time required for solution enhancing mechanical properties as compared conventional routes. The SSHIP is an innovative, economical sustainable approach that can be all ...

The depletion of Pt in Pt-enriched bond coats due to inter-diffusion with superalloys has been a critical concern for the long-term oxidation resistance thermal barrier coatings. This study investigated diffusion behaviour between CMSX-4 and two commercial comprising intermetallic ??/?-phase or ?-phase, aim understand mechanism that leads at high temperatures. results demonstrated superalloy di...

Abstract The present work shows that thermal expansion experiments can be used to measure the γʼ-solvus temperatures of four Ni-base single-crystal superalloys (SX), one with Re and three Re-free variants. In case CMSX-4, experimental results are in good agreement numerical thermodynamic obtained using ThermoCalc. For alloys, calculated close. Transmission electron microscopy chemical compositi...