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Life Prediction of ...
Life Prediction of High-Temperature MCr AIY Coatings Based on Microstructural Observations
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- Eriksson, Robert (author)
- Linköpings universitet,Konstruktionsmaterial,Tekniska högskolan
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- Yuan, Kang (author)
- Linköpings universitet,Konstruktionsmaterial,Tekniska högskolan
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- Johansson, Sten (author)
- Linköpings universitet,Konstruktionsmaterial,Tekniska högskolan
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- Peng, Ru (author)
- Linköpings universitet,Konstruktionsmaterial,Tekniska högskolan
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- Li, Xin-Hai (author)
- Siemens Industrial Turbomachinery AB, Finspång
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(creator_code:org_t)
- Trans Tech Publications Inc. 2014
- 2014
- English.
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In: THERMEC 2013. - : Trans Tech Publications Inc.. ; , s. 143-148
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.4...
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Abstract
Subject headings
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- Thermal barrier coatings are commonly used in gas turbines for protection against high tem-perature and oxidation. Life prediction of oxidation protective coatingsmay be done bymicrostructure-based techniques such as -depletion based life criteria. In this study, a thermal barrier coating sys-tem, with an overlay NiCoCrAlY coating as bond coat, was oxidised up to 10000 h at 900 C. Themicrostructure was studied and related to Al depletion. It was found that a -depletion based lifecriterion could not be used for the studied coating composition and temperature as it would be tooconservative. A 0-depletion based model was instead suggested and supported by interdiffusion sim-ulation.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Materialteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering (hsv//eng)
Keyword
- MCrAIY
- TBC
- thermal barrier coating
- life prediction
- microstructure
- Al depletion
Publication and Content Type
- ref (subject category)
- kon (subject category)
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