Home Technology Metallurgical Failure Investigation of a Deformed and Cracked Lashing-Load Ring of a Heavy-Duty Gas Turbine Engine
Article
Licensed
Unlicensed Requires Authentication

Metallurgical Failure Investigation of a Deformed and Cracked Lashing-Load Ring of a Heavy-Duty Gas Turbine Engine

  • A. Neidel

    Andreas Neidel studied mechanical engineering at IH Berlin. He got his doctorate there in 1991 with a thesis on high speed heat treatment of low alloy steel. In 1992 he joined Siemens' Energy Sector. Having worked ever since in quality management functions, he has been manager of the laboratories at the Berlin Gas Turbine Manufacturing Plant.

         and S. Riesenbeck

    Susanne Riesenbeck joined the Gas Turbine Plant of Siemens' Energy Sector in 1984 and underwent vocational training there. She is one of the principal failure analysts in the materials testing laboratory. Her main fields of expertise comprise microstructural analyses of steel and iron castings.
Published/Copyright: February 16, 2022
Become an author with De Gruyter Brill
Submit Manuscript Author Information
Practical Metallography
From the journal Practical Metallography Volume 53 Issue 1

Abstract

A severely deformed and cracked lashing-load ring of a heavy-duty gas turbine engine was received from the client as-delivered from the site. The damage was found upon a regular non-destructive inspections (NDT). A metallurgical failure investigation was ordered to determine whether there was microstructural damage due to excessive thermal loads, whether there were any other material defects that could have contributed to the failure, or whether the lifting lug was abused or overloaded in any way, and whether this was the only cause of failure. It was determined that the subject lifting lug failed by tensile/bending overload.

Kurzfassung

Vom Kunden ging eine stark verformte und gerissene Zugöse einer Großgasturbine im Anlieferungszustand ein. Der Schaden wurde im Zuge einer regelmäßig stattfindenden zerstörungsfreien Prüfung (ZfP) entdeckt. Eine werkstofftechnische Schadensuntersuchung wurde angeordnet, um zu bestimmen, ob es durch übermäßige thermische Belastungen zu Gefügeschäden kam, ob es andere Materialfehler gab, die zum Schaden beigetragen haben könnten, oder ob die Anhängeöse in irgendeiner Art und Weise missbräuchlich verwendet oder überlastet wurde und ob dies die einzige Schadensursache war. Es wurde festgestellt, dass die entsprechende Anhängeöse aufgrund einer Zug- bzw. Biegeüberbeanspruchung versagte.

About the authors

A. Neidel

Andreas Neidel studied mechanical engineering at IH Berlin. He got his doctorate there in 1991 with a thesis on high speed heat treatment of low alloy steel. In 1992 he joined Siemens' Energy Sector. Having worked ever since in quality management functions, he has been manager of the laboratories at the Berlin Gas Turbine Manufacturing Plant.

S. Riesenbeck

Susanne Riesenbeck joined the Gas Turbine Plant of Siemens' Energy Sector in 1984 and underwent vocational training there. She is one of the principal failure analysts in the materials testing laboratory. Her main fields of expertise comprise microstructural analyses of steel and iron castings.

References / Literatur

[1] Lange, G. (Hrsg.): Systematische Beurteilung technischer Schadensfälle. Wiley-VCH, 2001Search in Google Scholar

[2] VDI-Richtlinie 3822–2 “Schäden durch mechanische Beanspruchungen, Beuth Verlag GmbH, Berlin, 2006Search in Google Scholar

[3] ASM Handbook, Volume 11: Failure Analysis and Prevention. 6. Auflage, ASM International, 1998Search in Google Scholar

[4] ASM Handbook, Volume 19: Fatigue and Fracture. ASM International, 1996Search in Google Scholar

[5] ASM Handbook, Volume 12: Fractography. ASM International, 1987Search in Google Scholar

[6] Colangelo, V. J.; Heiser, F. A.: Analysis of Metallurgical Failures. Second Edition. John Wiley & Sons, New York, Chichester, Brisbane, Toronto, Singapore 1987Search in Google Scholar

[7] Mobley R. K.: Root Cause Failure Analysis. Newnes, Boston, Oxford, Auckland, Johannesburg, Melbourne, New Delhi 1999Search in Google Scholar

[8] Electron Microfractography. ASTM STP 453Search in Google Scholar
Published Online: 2022-02-16

© 2016 Walter de Gruyter GmbH, Berlin/Boston, Germany

Articles in the same Issue

  1. Contents
  2. Editorial
  3. Editorial
  4. Experimental Research on Properties of Naval Brass Castings
  5. Metallurgical Failure Investigation of a Deformed and Cracked Lashing-Load Ring of a Heavy-Duty Gas Turbine Engine
  6. Friction Stir Welding of 7075-T651 Aluminium Alloy
  7. The Influence of Sample Preparation on SEM Measurements of Anodic Oxide Layers
  8. Picture of the Month
  9. Top-Ten Article Downloads
  10. Picture of the Month
  11. News
  12. PM-news
  13. Meeting diary
  14. Meeting diary
https://doi.org/10.3139/147.110347

Articles in the same Issue

  1. Contents
  2. Editorial
  3. Editorial
  4. Experimental Research on Properties of Naval Brass Castings
  5. Metallurgical Failure Investigation of a Deformed and Cracked Lashing-Load Ring of a Heavy-Duty Gas Turbine Engine
  6. Friction Stir Welding of 7075-T651 Aluminium Alloy
  7. The Influence of Sample Preparation on SEM Measurements of Anodic Oxide Layers
  8. Picture of the Month
  9. Top-Ten Article Downloads
  10. Picture of the Month
  11. News
  12. PM-news
  13. Meeting diary
  14. 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.
© 2026 De Gruyter Brill
Downloaded on 13.2.2026 from https://www.degruyterbrill.com/document/doi/10.3139/147.110347/html
Scroll to top button