Status of Through-Process Simulation for Coated Gas Turbine Components (TP C8)

R. Herzog*, N. Warnken, I. Steinbach, B. Hallstedt, C. Walter, J. Müller, D. Hajas, E. Münstermann, J. M. Schneider, R. Nickel, D. Parkot, K. Bobzin, E. Lugscheider, P. Bednarz, O. Trunova, L. Singheiser

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

This chapter gives an overview on integrative, through-process modeling and simulation approach for coated turbine blades on different scales. The approach includes the modeling of the production, materials properties, and in-service degradation processes and is accompanied by the actual production and testing of coated CMSX-4 single-crystal turbine blades and laboratory specimens. Especially, solidification of the blade alloy during casting, microstructural changes during homogenization and aging heat treatments, chemical vapor deposition of an Al2O3 diffusion barrier coating, physical vapor deposition (sputtering) of a (Ni,Co)CrAlY bond coat, atmospheric plasma spraying of a Y2O3 stabilized ZrO2 thermal barrier coating, microstructural changes, and development of critical stresses under in-service conditions are addressed.

Original languageEnglish
Title of host publicationIntegral Materials Modeling: Towards Physics-Based Through-Process Models
PublisherWiley Interscience/John Wiley and Sons
Pages49-61
Number of pages13
ISBN (Print)9783527317110
DOIs
Publication statusPublished - 26 Apr 2007

Keywords

  • Alumina interdiffusion barrier
  • Atmospheric plasma spraying of ceramic TBC
  • Bond coat/TBC interface
  • Coated gas turbine components
  • Crack formation
  • CVD processing
  • Heat treatment
  • Integral materials modeling
  • Nickel-based superalloy
  • Solidification
  • Through-process simulation
  • TP C8

ASJC Scopus subject areas

  • General Materials Science

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