Just another WordPress site - Ruhr-Universität Bochum
Integrated Approach for the development of advance, coated gas turbine blades
This paper describes a through-process modelling on a microstructural level of the production of a coated turbine blade, including its in-service properties and degradation, accompanied by the actual production and testing of a CMSX-4 single crystal turbine blade dummy. The following steps are dealt with by modelling and experiment: solidification of the blade alloy during casting, microstructural changes during homogenization and aging heat treatments chemical vapour depostion of an Al2O3 diffusion barrier coating, physical vapour deposition (sputtering) of a (Ni,Co)CrAlY bound coat, atmospheric plasma spraying of an Y2O3 stabilized ZrO2 thermal barrier coating and microstructural changes and develpment of critical stresses ant in-service conditions. This work forms a part of the Collaborative Research Centre 370 (SFB370) "Integrative materials modelling".