Fractural based microstructural damane evaluation in Ni-based superalloy gas turbine blades
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F10%3A00358287" target="_blank" >RIV/68081723:_____/10:00358287 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Fractural based microstructural damane evaluation in Ni-based superalloy gas turbine blades
Original language description
A fractal based evaluation of microstructural damage in Ni based superalloy cast IN 738 LC used in gas turbine blades is presented in the paper. Non-destructive in-situ replica method was used without damaging the blades for the evaluation of microstructure. The theoretical life of the stator blades of the gas turbine, which was exposed to temperature varying between 1060°C to 1100°C, was approximately 100,000 hours. In order to assess the suitability of the stator blades after 50% of the service life,fractal based microstructural damage evaluation has been conducted. The fractal dimensions of the in situ metallographic images can be correlated to the progressive deterioration of hardness at various locations of the blades. The extent of damage is inversely proportional to the fractal dimension. For fractal dimension below 2.4, the material can be classified as substantially damaged.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
JL - Fatigue and fracture mechanics
OECD FORD branch
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Result continuities
Project
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Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)
Others
Publication year
2010
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
New Methods of Damage and Failure Analysis of Structural Parts
ISBN
978-80-248-2265-5
ISSN
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e-ISSN
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Number of pages
9
Pages from-to
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Publisher name
VŠB - TU Ostrava
Place of publication
Ostrava
Event location
Ostrava
Event date
Sep 6, 2010
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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