Microstructure of creep exposed single crystal nickel base superalloy

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F26316919%3A_____%2F10%3A%230000220" target="_blank" >RIV/26316919:_____/10:#0000220 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Microstructure of creep exposed single crystal nickel base superalloy
Original language description
Main change which appears in microstructure of Ni base superalloys during creep exposure is the directional coarsening (rafting) of originally cubic ?? precipitates of nano size. Determination of the morphological changes of ??(gamma prime) in creep-exposed single-crystal Ni-base superalloy CMSX4 using SANS was carried out. A new sample design was tested in order to detect continually changing stress levels in one sample and corresponding variety of microstructural change. Evolution of rafts with stressmagnitude is clearly observable from the parameters obtained using SANS (the mean thickness of the ? channel in different crystallographic directions of the single-crystal, the evolution of the ?? precipitate size and distance, the evolution of the specific interface). The use of conic specimen and spatial scan facilitate determination of microstructure evolution in dependence on the exposure parameters.
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
JG - Metallurgy, metal materials
OECD FORD branch
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Publication year
2010
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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