A microstructural study and high-temperature oxidation behaviour of plasma sprayed NiCrAlY based composite coatings
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27230%2F25%3A10259470" target="_blank" >RIV/61989100:27230/25:10259470 - isvavai.cz</a>
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S2590123025000143?pes=vor&utm_source=clarivate&getft_integrator=clarivate" target="_blank" >https://www.sciencedirect.com/science/article/pii/S2590123025000143?pes=vor&utm_source=clarivate&getft_integrator=clarivate</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.rineng.2025.103926" target="_blank" >10.1016/j.rineng.2025.103926</a>
Alternative languages
Result language
angličtina
Original language name
A microstructural study and high-temperature oxidation behaviour of plasma sprayed NiCrAlY based composite coatings
Original language description
In this study, the development and performance evaluation of plasma sprayed NiCrAlY based coatings, such as NiCrAlY, NiCrAlY + Al2O3 and NiCrAlY + YSZ on T91 steel substrates for high temperature applications is carried out. Microstructural features, phase composition and oxidation resistance under cyclic oxidation at 800 degrees C of the coatings were characterized. Analysis of the XRD confirmed the formation of protective phases such as Cr2O3, Ni3Al and NiAl, and the improvement observed in the coating's performance was due to the addition of Al2O3 and YSZ. Oxidation resistance was improved for the NiCrAlY + Al2O3 coating through the formation of a dense Al2O3 oxide layer, but the NiCrAlY + YSZ coating was superior in terms of thermal stability and spallation resistance, because YSZ has low thermal conductivity and high thermal shock resistance. Composite coatings showed improved cyclic oxidation behavior and microstructural analysis revealed reduced porosity and enhanced integrity. The results demonstrate that the addition of Al2O3 and YSZ in the NiCrAlY coatings leads to capability of tailoring NiCrAlY-based coatings for high temperature industrial applications with improved durability and oxidation protection.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20301 - Mechanical engineering
Result continuities
Project
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Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Results in Engineering
ISSN
2590-1230
e-ISSN
2590-1230
Volume of the periodical
25
Issue of the periodical within the volume
1
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
11
Pages from-to
nestránkováno
UT code for WoS article
001411304200001
EID of the result in the Scopus database
2-s2.0-85214339437