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Fatigue and fracture behavior of ceramic thermal barrier coating systems applied on Ni-based super alloys

Bartsch, Marion and Wischek, Janine and Meid, Carla (2013) Fatigue and fracture behavior of ceramic thermal barrier coating systems applied on Ni-based super alloys. In: Proceedings of the 27th Symposium on reliability Engineering & 16th Symposium on Fracture Mechanics of the Japanese Society of Material Science, pp. 203-206. 27th Symposium on reliability Engineering & 16th Symposium on Fracture Mechanics, 20.-22. Nov. 2013, Kumamoto, Japan.

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Abstract

Ceramic thermal barrier coatings are used for thermal protection of components, which are heated on one side and cooled at the back side. One common application is on gas turbine blades made from nickel based super alloys. The coated components are subjected to thermal and mechanical fatigue with typical material temperatures up to 1200°C at the heated and about 900°C at the cooled surface under quasi-stationary conditions. Thus, the service conditions are complex and it is difficult to perform realistic and meaningful laboratory experiments for evaluation of damage behavior of the coating systems. In the manuscript a short overview over testing and evaluation methods will be given. Strategies, how to achieve data for lifetime prognosis of TBS-systems used for airfoils in gas turbines are discussed by means of examples the authors are working on.

Item URL in elib:https://elib.dlr.de/85662/
Document Type:Conference or Workshop Item (Speech)
Title:Fatigue and fracture behavior of ceramic thermal barrier coating systems applied on Ni-based super alloys
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Bartsch, Marionmarion.bartsch (at) dlr.deUNSPECIFIED
Wischek, Janinejanine.wischek (at) dlr.deUNSPECIFIED
Meid, Carlacarla.meid (at) dlr.deUNSPECIFIED
Date:21 November 2013
Journal or Publication Title:Proceedings of the 27th Symposium on reliability Engineering & 16th Symposium on Fracture Mechanics of the Japanese Society of Material Science
Refereed publication:No
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Page Range:pp. 203-206
Status:Published
Keywords:Thermal barrier coating, thermal gradient, thermal mechanical fatigue, damage mechanisms, lifetime assessment, material properties
Event Title:27th Symposium on reliability Engineering & 16th Symposium on Fracture Mechanics
Event Location:Kumamoto, Japan
Event Type:international Conference
Event Dates:20.-22. Nov. 2013
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Propulsion Systems (old)
DLR - Research area:Aeronautics
DLR - Program:L ER - Engine Research
DLR - Research theme (Project):L - Virtual Engine and Validation Methods (old)
Location: Köln-Porz
Institutes and Institutions:Institute of Materials Research > Experimental and Numerical Methods
Deposited By: Bartsch, Dr.-Ing. Marion
Deposited On:27 Nov 2013 14:48
Last Modified:08 May 2014 23:19

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