Honeycomb structures of high-temperature nickel-based alloys are used in sealing systems of gas turbine engines. During engine operation, the small sealing gaps required for reasons of efficiency cause a so-called rubbing between the stationary honeycomb structure and the tip of the rotating turbine blade. This can lead to damage of the participating materials. The microstructure-based model of the honeycomb structure developed in this work provides a powerful tool to establish a rubbing-optimised honeycomb geometry and a tailor-made microstructure of the honeycomb material.
«
Honeycomb structures of high-temperature nickel-based alloys are used in sealing systems of gas turbine engines. During engine operation, the small sealing gaps required for reasons of efficiency cause a so-called rubbing between the stationary honeycomb structure and the tip of the rotating turbine blade. This can lead to damage of the participating materials. The microstructure-based model of the honeycomb structure developed in this work provides a powerful tool to establish a rubbing-optimi...
»