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Integrated Approach for the Development of Advanced, Coated Gas Turbine Blades
Author(s) -
Herzog R.,
Warnken N.,
Steinbach I.,
Hallstedt B.,
Walter C.,
Müller J.,
Hajas D.,
Münstermann E.,
Schneider J. M.,
Nickel R.,
Parkot D.,
Bobzin K.,
Lugscheider E.,
Bednarz P.,
Trunova O.,
Singheiser L.
Publication year - 2006
Publication title -
advanced engineering materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 114
eISSN - 1527-2648
pISSN - 1438-1656
DOI - 10.1002/adem.200500277
Subject(s) - materials science , turbine blade , thermal barrier coating , coating , metallurgy , homogenization (climate) , turbine , gas turbines , deposition (geology) , investment casting , chemical vapor deposition , microstructure , service life , composite material , mechanical engineering , nanotechnology , mold , engineering , biodiversity , ecology , paleontology , sediment , biology
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 deposition of an Al 2 O 3 diffusion barrier coating, physical vapour deposition (sputtering) of a (Ni,Co)CrAlY bond coat, atmospheric plasma spraying of an Y 2 O 3 stabilized ZrO 2 thermal barrier coating and microstructural changes and development of critical stresses at in‐service conditions. This work forms a part of the Collaborative Research Centre 370 (SFB 370) “Integrative materials modelling”.