A microstructural study and high-temperature oxidation behaviour of plasma sprayed NiCrAlY based composite coatings
Identifikátory výsledku
Kód výsledku v 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>
Výsledek na webu
<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>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
A microstructural study and high-temperature oxidation behaviour of plasma sprayed NiCrAlY based composite coatings
Popis výsledku v původním jazyce
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.
Název v anglickém jazyce
A microstructural study and high-temperature oxidation behaviour of plasma sprayed NiCrAlY based composite coatings
Popis výsledku anglicky
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.
Klasifikace
Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
—
OECD FORD obor
20301 - Mechanical engineering
Návaznosti výsledku
Projekt
—
Návaznosti
S - Specificky vyzkum na vysokych skolach
Ostatní
Rok uplatnění
2025
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Results in Engineering
ISSN
2590-1230
e-ISSN
2590-1230
Svazek periodika
25
Číslo periodika v rámci svazku
1
Stát vydavatele periodika
NL - Nizozemsko
Počet stran výsledku
11
Strana od-do
nestránkováno
Kód UT WoS článku
001411304200001
EID výsledku v databázi Scopus
2-s2.0-85214339437