Testing Of Corrosion Behavior Of Nickel Alloys At High Temperatures In Molten Salts

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22320%2F22%3A43924739" target="_blank" >RIV/60461373:22320/22:43924739 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60461373:22810/22:43924739

Výsledek na webu

<a href="https://www.confer.cz/metal/2022" target="_blank" >https://www.confer.cz/metal/2022</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.37904/metal.2022.4515" target="_blank" >10.37904/metal.2022.4515</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Testing Of Corrosion Behavior Of Nickel Alloys At High Temperatures In Molten Salts

Popis výsledku v původním jazyce

The use of salt mixtures properties is considered in many future technologies, such as energy storage or medium for nuclear reactors. The key question is to choose a suitable construction material for these devices operating at high temperatures in a corrosive environment. Nickel alloys show high corrosion resistance at high exposure temperatures, and literary sources also describe resistance in the environment of fluoride salts. This work verified the corrosion behavior of two nickel alloys in molten chloride salts. Nickel-based superalloys Hastelloy C22 and MoNiCr were tested in a mixture of chloride salts LiCI - KCI (58.2 - 41.8 wt%). Alloys samples were heated in salt melts for 500 h at 440 °C in an inert atmosphere of argon. After removal, they were analyzed gravimetrically, the composition of the surface layers by the XPS and cross-section of samples using SEM. The gravimetric evaluation showed no significant changes after exposure. This was also confirmed by SEM and XPS results, which demonstrate the formation of very thin layers of nickel and chromium oxides up to 1 urn thick

Název v anglickém jazyce

Testing Of Corrosion Behavior Of Nickel Alloys At High Temperatures In Molten Salts

Popis výsledku anglicky

The use of salt mixtures properties is considered in many future technologies, such as energy storage or medium for nuclear reactors. The key question is to choose a suitable construction material for these devices operating at high temperatures in a corrosive environment. Nickel alloys show high corrosion resistance at high exposure temperatures, and literary sources also describe resistance in the environment of fluoride salts. This work verified the corrosion behavior of two nickel alloys in molten chloride salts. Nickel-based superalloys Hastelloy C22 and MoNiCr were tested in a mixture of chloride salts LiCI - KCI (58.2 - 41.8 wt%). Alloys samples were heated in salt melts for 500 h at 440 °C in an inert atmosphere of argon. After removal, they were analyzed gravimetrically, the composition of the surface layers by the XPS and cross-section of samples using SEM. The gravimetric evaluation showed no significant changes after exposure. This was also confirmed by SEM and XPS results, which demonstrate the formation of very thin layers of nickel and chromium oxides up to 1 urn thick

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20501 - Materials engineering

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2022

Kód důvěrnosti údajů

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

Název statě ve sborníku

Conference Proceedings - METAL 2022

ISBN

978-80-88365-06-8

ISSN

2694-9296

e-ISSN

—

Počet stran výsledku

5

Strana od-do

762-766

Název nakladatele

Tanger s.r.o.

Místo vydání

Ostrava

Místo konání akce

Brno

Datum konání akce

18. 5. 2022

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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