Thermally Sprayed HVOF Coatings for Steam Turbine Applications

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23210%2F20%3A43973731" target="_blank" >RIV/49777513:23210/20:43973731 - isvavai.cz</a>

Výsledek na webu

<a href="https://fe.up.pt/irf/Proceedings_IRF2020/data/PDF-Book.pdf" target="_blank" >https://fe.up.pt/irf/Proceedings_IRF2020/data/PDF-Book.pdf</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Thermally Sprayed HVOF Coatings for Steam Turbine Applications

Popis výsledku v původním jazyce

The demands imposed on the coated components differ according to their purpose. Nevertheless, all the used materials have to resist degradation due to the influence of the surrounding environment. In the most challenging areas of applications, such as the power industry, the high temperature is often accompanied by a corrosive-aggressive environment, further increasing the materials requirements. In such conditions, the superior thermally sprayed coatings can be applied to increase the components wear resistance simultaneously to oxidation protection. The paper is focused on the evaluation of HVOF (High Velocity Oxygen Fuel) sprayed Co and Ni superalloy coatings behavior at room and high temperature under different types of mechanical loading and their resistance to high temperature oxidation, in comparison with CrC-based hardmetal coatings. The heat-induced microstructure changes are discussed, together with the potential of intentional heat-treatment for performance improvement. In general, the superalloy coatings proved its superior properties and performance in the demanding environment despite of being less wear resistant compare to hardmetals.

Název v anglickém jazyce

Thermally Sprayed HVOF Coatings for Steam Turbine Applications

Popis výsledku anglicky

The demands imposed on the coated components differ according to their purpose. Nevertheless, all the used materials have to resist degradation due to the influence of the surrounding environment. In the most challenging areas of applications, such as the power industry, the high temperature is often accompanied by a corrosive-aggressive environment, further increasing the materials requirements. In such conditions, the superior thermally sprayed coatings can be applied to increase the components wear resistance simultaneously to oxidation protection. The paper is focused on the evaluation of HVOF (High Velocity Oxygen Fuel) sprayed Co and Ni superalloy coatings behavior at room and high temperature under different types of mechanical loading and their resistance to high temperature oxidation, in comparison with CrC-based hardmetal coatings. The heat-induced microstructure changes are discussed, together with the potential of intentional heat-treatment for performance improvement. In general, the superalloy coatings proved its superior properties and performance in the demanding environment despite of being less wear resistant compare to hardmetals.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20506 - Coating and films

Projekt

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Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2020

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Proceedings IRF2020: 7th International Conference Integrity-Reliability-Failure

ISBN

978-989-54-7561-2

ISSN

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e-ISSN

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Počet stran výsledku

10

Strana od-do

383-392

Název nakladatele

INEGI-Instituto de Ciência e Inovação em Engenharia Mecânica e Engenharia Industrial

Místo vydání

Porto

Místo konání akce

Funchal, Portugalsko

Datum konání akce

6. 9. 2020

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000731040500080