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Investigation of Fatigue Behavior of a Thermal Barrier Coating System

Dalkilic, Serdar (2007) Investigation of Fatigue Behavior of a Thermal Barrier Coating System. Dissertation, Anadolou University, Eskisehir, Türkei.

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In this dissertation, fatigue behavior of a thermal barrier coating system applied to the turbine blades of gas turbine aero-engines is investigated. An experimental study on the isothermal high temperature low cycle fatigue (HTLCF) properties of a thermal barrier coating system and the results of this experimental study is presented. Investigated TBC system consists of a directionally solidified nickel based superalloy IN 100 DS substrate, a yttria partially stabilized zirconia (YPSZ) ceramic top coat and a NiCoCrAlY metallic bond coat. Both layers are applied by Electron Beam Physical Vapor Deposition (EB-PVD) method. Damages on test specimens are investigated in terms of mechanical stress, number of cycles, the effect of thermal barrier coating and time at high temperature. The macro and microstructural changes in the specimens are described by means of various characterization techniques such as Scanning Electron Microscope (SEM), Energy Dispersive X-ray Analysis (EDX), X-ray Diffraction (XRD), Optical Microscope (OM) and Infrared Imaging (IR) and by comparison of previous studies in the literature.

Item URL in elib:https://elib.dlr.de/52278/
Document Type:Thesis (Dissertation)
Additional Information:in Türkisch
Title:Investigation of Fatigue Behavior of a Thermal Barrier Coating System
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Date:February 2007
Journal or Publication Title:Dissertation, Anadolu University, Graduate School of Sciences, Civil Aviation Program
Refereed publication:Yes
Open Access:No
Number of Pages:149
Keywords:fatigue, thermal barrier coating
Institution:Anadolou University, Eskisehir, Türkei
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Aeronautics
HGF - Program Themes:Propulsion Systems (old)
DLR - Research area:Aeronautics
DLR - Program:L ER - Engine Research
DLR - Research theme (Project):L - Low-Emission Air Traffic (old)
Location: Köln-Porz
Institutes and Institutions:Institute of Materials Research
Deposited By: Bartsch, Dr.-Ing. Marion
Deposited On:10 Jan 2008
Last Modified:27 Apr 2009 14:34

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