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Analysis of surface chemical contamination on ex-service industrial gas turbine components

Abstract:

The origin of surface discoloration on Thermal Barrier Coatings (TBCs) of land-based industrial gas turbine hot gas path vanes has been investigated. Three ex-service row one (R1) vanes have been examined. Dense black colour deposits were observed on the pressure side leading edge and trailing edge, whereas red and brown deposits were present on the pressure side surface. Energy dispersive spectroscopy (EDS) analyses reveal a significant amount of iron oxide present with smaller amount of cal...

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Institution:
University of Oxford
Division:
MPLS
Department:
Materials
Role:
Author
Journal:
Proceedings of the International Symposium on Superalloys
Pages:
681-688
Publication date:
2008-01-01
Source identifiers:
369701
Language:
English
Keywords:
Pubs id:
pubs:369701
UUID:
uuid:505b4f7f-9387-400b-8aac-19be6b35e7e1
Local pid:
pubs:369701
Deposit date:
2013-11-16

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