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Multiaxial thermo-mecvhanical fatigue on material systems for gas turbines - Mehrachsige thermomechanische Ermüdung an Werkstoffsystemen für Gasturbinen

Bartsch, Marion and Baufeld, Bernd and Heinzelmann, Michael and Karlsson, Anette M. and Dalkilic, Serdar and Chernova, Liudmila (2007) Multiaxial thermo-mecvhanical fatigue on material systems for gas turbines - Mehrachsige thermomechanische Ermüdung an Werkstoffsystemen für Gasturbinen. Materialwissenschaft und Werkstofftechnik, 28 (9), pp. 712-719. Wiley InterScience. DOI: 10.1002/mawe.200700193 ISSN 0933-5137

Full text not available from this repository.

Abstract

Material systems made from nickel based superalloys with protective coatings have been tested in thermo-mechanical fatigue with superposed thermal gradients, which generated multiaxial stress states. The testing conditions were selected for simulating the fatigue loading in the wall of an internally cooled gas turbine blade of an aircraft engine. After thermo-mechanical testing the damage behaviour of the materials has been investigated by means of microscopic methods. The laboratory experiments have been accompanied by numerical simulations. Based on the results of the simulations and observed damage features the test parameters in subsequent laboratory tests have been controlled to facilitate the validation of models describing the initiation and propagation of damages. This contribution gives an overview over results on the influence of multiaxial stress states on (i) oriented deformation and coagulation of γ’-precipitates (‘rafting’) in the substrate, (ii) on morphological instabilities of the surface of metallic oxidation protection coatings (‘rumpling’), and (iii) on crack initiation and growth in material systems with additional ceramic thermal barrier coating.

Item URL in elib:https://elib.dlr.de/51871/
Document Type:Article
Title:Multiaxial thermo-mecvhanical fatigue on material systems for gas turbines - Mehrachsige thermomechanische Ermüdung an Werkstoffsystemen für Gasturbinen
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Bartsch, MarionUNSPECIFIEDUNSPECIFIED
Baufeld, BerndKatholieke Universiteit Leuven, BelgiumUNSPECIFIED
Heinzelmann, MichaelFachhochschule Bonn-Rhein-SiegUNSPECIFIED
Karlsson, Anette M.University of Delaware, Newark, USAUNSPECIFIED
Dalkilic, SerdarAnadolu University, Eskisehir, TurkeyUNSPECIFIED
Chernova, LiudmilaUNSPECIFIEDUNSPECIFIED
Date:September 2007
Journal or Publication Title:Materialwissenschaft und Werkstofftechnik
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:Yes
Volume:28
DOI :10.1002/mawe.200700193
Page Range:pp. 712-719
Publisher:Wiley InterScience
ISSN:0933-5137
Status:Published
Keywords:Mehrachsigkeit, thermomechanische Ermüdung, Temperaturgradienten, Wärmedämmschicht, Werkstoffmodellierung, multiaxial stress state, thermo-mechanical fatigue, thermal gradient, thermal barrier coating, material modelling
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Aeronautics
HGF - Program Themes:L VU - Air Traffic and Environment (old)
DLR - Research area:Aeronautics
DLR - Program:L VU - Air Traffic and Environment
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:16 Nov 2007
Last Modified:27 Apr 2009 14:29

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