Thermal barrier coatings (TBCs) are ceramic coatings used in gas turbines to lower the base metal temperature. During operation, the TBC may fail through, for example, fatigue. In this study, a TBC system deposited on a Ni-base alloy was tested in tensile bending fatigue. The TBC system was tested as-sprayed and oxidized, and two load levels were used. After interrupting the tests, at 10,000–50,000 cycles, the TBC tested at the lower load had extensive delamination damage, whereas the TBC tested at the higher load was relatively undamaged. At the higher load, the TBC formed vertical cracks which relieved the stresses in the TBC and retarded delamination damage. A finite element (FE) analysis was used to establish a likely vertical crack configuration (spacing and depth), and it could be confirmed that the corresponding stress drop in the TBC should prohibit delamination damage at the higher load.
Skip Nav Destination
Article navigation
December 2017
Research-Article
Bending Fatigue of Thermal Barrier Coatings Available to Purchase
Zhe Chen,
Zhe Chen
Division of Engineering Materials,
Linköping University,
Linköping 58183, Sweden
e-mail: [email protected]
Linköping University,
Linköping 58183, Sweden
e-mail: [email protected]
Search for other works by this author on:
Krishna Praveen Jonnalagadda
Krishna Praveen Jonnalagadda
Division of Engineering Materials,
Linköping University,
Linköping 58183, Sweden
e-mail: [email protected]
Linköping University,
Linköping 58183, Sweden
e-mail: [email protected]
Search for other works by this author on:
Robert Eriksson
Zhe Chen
Division of Engineering Materials,
Linköping University,
Linköping 58183, Sweden
e-mail: [email protected]
Linköping University,
Linköping 58183, Sweden
e-mail: [email protected]
Krishna Praveen Jonnalagadda
Division of Engineering Materials,
Linköping University,
Linköping 58183, Sweden
e-mail: [email protected]
Linköping University,
Linköping 58183, Sweden
e-mail: [email protected]
1Corresponding author.
Contributed by the Manufacturing Materials and Metallurgy Committee of ASME for publication in the JOURNAL OF ENGINEERING FOR GAS TURBINES AND POWER. Manuscript received July 3, 2017; final manuscript received July 4, 2017; published online September 13, 2017. Editor: David Wisler.
J. Eng. Gas Turbines Power. Dec 2017, 139(12): 122101 (6 pages)
Published Online: September 13, 2017
Article history
Received:
July 3, 2017
Revised:
July 4, 2017
Citation
Eriksson, R., Chen, Z., and Jonnalagadda, K. P. (September 13, 2017). "Bending Fatigue of Thermal Barrier Coatings." ASME. J. Eng. Gas Turbines Power. December 2017; 139(12): 122101. https://doi.org/10.1115/1.4037587
Download citation file:
Get Email Alerts
Cited By
Flame transfer function and emissions of a piloted single jet burner: influence of hydrogen content
J. Eng. Gas Turbines Power
Computational Analysis of Peripheral Fuel Injection to Enhance Fuel–Oxidizer Mixing in the Near-Field of Diesel Sprays
J. Eng. Gas Turbines Power (September 2025)
Retrofit, Experimental, and Numerical Evaluation of a High-Speed Diesel Engine for Diesel-Methanol Dual-Fuel Operation
J. Eng. Gas Turbines Power (October 2025)
Investigation of the Dynamic Characteristics of Brush Seals Using a Transient Fluid-Structure Interaction Method
J. Eng. Gas Turbines Power (November 2025)
Related Articles
Review of Models and the Disturbed State Concept for Thermomechanical Analysis in Electronic Packaging
J. Electron. Packag (March,2001)
Characterization of Fatigue Mechanisms of Thermal Barrier Coatings by a Novel Laser-Based Test
J. Eng. Gas Turbines Power (April,1999)
Delamination Cracking in Thermal Barrier Coating System
J. Eng. Gas Turbines Power (October,2002)
Flexural Fatigue of Unbalanced Glass-Carbon Hybrid Composites
J. Sol. Energy Eng (November,2014)
Related Proceedings Papers
Related Chapters
Understanding the Problem
Design and Application of the Worm Gear
Introduction and Definitions
Handbook on Stiffness & Damping in Mechanical Design
Introductory Information
The Stress Analysis of Cracks Handbook, Third Edition