Home Technology Uncharacteristic Circumferential TMF Cracking in a Heavy-duty Stationary Gas Turbine Engine Burner Outlet
Article
Licensed
Unlicensed Requires Authentication

Uncharacteristic Circumferential TMF Cracking in a Heavy-duty Stationary Gas Turbine Engine Burner Outlet

  • A. Neidel , Th. Ullrich and S. Wallich
Published/Copyright: June 3, 2015
Become an author with De Gruyter Brill
Submit Manuscript Author Information
Practical Metallography
From the journal Practical Metallography Volume 52 Issue 6

Abstract

Burners are key components of turbomachinery with internal combustion. They allow for a particularly lean combustion in heavy-duty stationary gas turbine engines for power stations and thus contribute significantly to economical operation. Depending on their design, burners are often subject to thermomechanical stress. This failure analysis is concerned with thermal cycling cracks at the burner outlet. Circumferential cracking, parallel to the component surface, is untypical for this damage mechanism. Thermal cycling and thermal-mechanical fatigue cracks usually spread in a radial direction. Possible causes could be the special kind of centrifugal casting structure or the high thermal tension, which might have built up during burner operation.

Kurzfassung

Brenner sind Schlüsselkomponenten in Turbomaschinen mit interner Verbrennung. Sie ermöglichen in Großgasturbinen für Kraftwerke eine besonders magere Verbrennung und tragen so wesentlich zum wirtschaftlichen Betrieb bei. Abhängig vom Design sind sie häufig hoch thermomechanisch beansprucht. Die in diesem Beitrag gezeigte Schadensfallstudie betrifft Thermowechselrisse am Brenneraustritt. Der Rissverlauf in Umfangsrichtung parallel zur Bauteiloberfläche ist untypisch für diesen Schadensmechanismus. Meist breiten sich Thermowechsel- bzw. Thermoermüdungsrisse in radialer Richtung aus. Ursachen könnten neben dem besonderen Schleudergussgefüge in hohen thermischen Radialspannungen liegen, die sich im Brennerbetrieb aufgebaut haben könnten.

Translation: M. Lackas

References / Literatur

[1] Neidel, A.;Yao, C.: Practical Failure Analysis 2003, Volume 3 (6), 41–4610.1007/BF02717508Search in Google Scholar

[2] Neidel, A.;Matijasevic-Lux, B.;RiesenbeckS;Ullrich, T.;Völker, J.;Wallich, S.: Schäden an Brennerkomponenten von Heavy duty-Gasturbinen. Prakt. Metallogr.47 (2010), 3, S. 135–149Search in Google Scholar

[3] Seume, J.;Lechner, C. (Ed.): Stationäre Gasturbinen, Springer-Verlag, Berlin, Heidelberg, Deutschland, 200310.1007/978-3-662-10016-5Search in Google Scholar

[4] Neidel, A.,Cagliyan, E.,Jahnke, A.,Riesenbeck, S.,Ullrich, T.,Wallich, S.: TMF Cracking in Metallic Heat Shields of Gas Turbine Combustion Chambers. Materials Testing54 (2012), 3, S. 153–156Search in Google Scholar

[5] Neidel, A.,Riesenbeck, S.: Thermal Fatigue Cracks in Gas Turbine Heat Shield Plates. Prakt. Metallogr.49 (2012), 2, S. 99–108Search in Google Scholar

[6] Leggemann, S.;Cagliyan, E.;Riesenbeck, S.;Neidel, A.: Metallurgical Failure Investigation of Overheated and Fractured Investment Cast Nickel-base Bolts Made of Inconel 939. Prakt. Metallogr.50 (2013), 7, S. 501–511Search in Google Scholar

[7] VDI-Richtlinie 3822, Beuth-Verlag2012Search in Google Scholar

[8] ASM Handbook, Vol. 11: Failure Analysis and Prevention, Sixth printing, American Society for Metals, Handbook Committee, 1998Search in Google Scholar

[9] Neidel, A.,Völker, J.: Ausgewählte Schadensfälle aus dem Großgasturbinenbau-Werden wir aus Schaden wirklich klug?Materials Testing53 (2011), 11–12, S. 680–688Search in Google Scholar

[10] http://www.haynesintl.com/pdf/h3008.pdf, accessed on 04.01.2014, 16: 16 o'clock.Search in Google Scholar

Published Online: 2015-06-03
Published in Print: 2015-06-15

© 2015, Carl Hanser Verlag, München

Articles in the same Issue

  1. Contents/Inhalt
  2. Contents
  3. Editorial
  4. Editorial
  5. Technical Contributions/Fachbeiträge
  6. Impact of Phase Distribution on the Fracture Toughness of High Temperature Resistant Mo-Si-B Alloys
  7. The Applicability of Nanoindentation for the Examination of Microstructured Areas in CP Titanium Samples
  8. Influence of the Sample Preparation Technique on the μ Phase Fraction Analysis in a Fe-25Co-15Mo Alloy by Means of XRD
  9. Uncharacteristic Circumferential TMF Cracking in a Heavy-duty Stationary Gas Turbine Engine Burner Outlet
  10. Meeting Diary/Veranstaltungskalender
  11. Meeting Diary
https://doi.org/10.3139/147.110285

Articles in the same Issue

  1. Contents/Inhalt
  2. Contents
  3. Editorial
  4. Editorial
  5. Technical Contributions/Fachbeiträge
  6. Impact of Phase Distribution on the Fracture Toughness of High Temperature Resistant Mo-Si-B Alloys
  7. The Applicability of Nanoindentation for the Examination of Microstructured Areas in CP Titanium Samples
  8. Influence of the Sample Preparation Technique on the μ Phase Fraction Analysis in a Fe-25Co-15Mo Alloy by Means of XRD
  9. Uncharacteristic Circumferential TMF Cracking in a Heavy-duty Stationary Gas Turbine Engine Burner Outlet
  10. Meeting Diary/Veranstaltungskalender
  11. Meeting Diary
Sign up now to receive a 20% welcome discount
Institutional Access
How does access work?
Have an idea on how to improve our website?
Please write us.
© 2025 De Gruyter Brill
Downloaded on 9.12.2025 from https://www.degruyterbrill.com/document/doi/10.3139/147.110285/pdf
Scroll to top button