Recrystallization Behaviour of Nickel-Based Superalloys for Molten Salt Reactors

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F26316919%3A_____%2F18%3AN0000040" target="_blank" >RIV/26316919:_____/18:N0000040 - isvavai.cz</a>

Výsledek na webu

<a href="http://ansannual.org/wp-content/2018/Data/pdfs/576-24462.pdf" target="_blank" >http://ansannual.org/wp-content/2018/Data/pdfs/576-24462.pdf</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Recrystallization Behaviour of Nickel-Based Superalloys for Molten Salt Reactors

Popis výsledku v původním jazyce

Many studies stated that nickel-based superalloys with high Mo and low Cr contents are generally superior with respect to the high-temperature corrosion resistance in fluorine environments. Two nickel-based superalloys MONICR an HN80MTY have been previously developer for core parts of nuclear molten salt reactors. Usually, the microstructure of a nickel superalloy after hot working consists of large and fine grains and is not uniform [1]. A low ability of the nickel-based superalloys to dynamically recrystallize during forging leads to difficulties during the forging at the highest temperatures close to the temperature of solidus [2]. Irrespective of whether the microstructure is coarse-grained or fine-grained it should be uniform for further annealing processing. Therefore the recrystallization behaviour of superalloys during the hot working should be properly described by means of specific and reproducible processing parameters. This summary resumes particular study of recrystallization behaviour of MONICR and HN80MTY which was done by means of deformation dilatometer. Similar research was done previously on MONICR alloy by means of thermomechanical simulator.

Název v anglickém jazyce

Recrystallization Behaviour of Nickel-Based Superalloys for Molten Salt Reactors

Popis výsledku anglicky

Many studies stated that nickel-based superalloys with high Mo and low Cr contents are generally superior with respect to the high-temperature corrosion resistance in fluorine environments. Two nickel-based superalloys MONICR an HN80MTY have been previously developer for core parts of nuclear molten salt reactors. Usually, the microstructure of a nickel superalloy after hot working consists of large and fine grains and is not uniform [1]. A low ability of the nickel-based superalloys to dynamically recrystallize during forging leads to difficulties during the forging at the highest temperatures close to the temperature of solidus [2]. Irrespective of whether the microstructure is coarse-grained or fine-grained it should be uniform for further annealing processing. Therefore the recrystallization behaviour of superalloys during the hot working should be properly described by means of specific and reproducible processing parameters. This summary resumes particular study of recrystallization behaviour of MONICR and HN80MTY which was done by means of deformation dilatometer. Similar research was done previously on MONICR alloy by means of thermomechanical simulator.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20501 - Materials engineering

Projekt

<a href="/cs/project/TH02020113" target="_blank" >TH02020113: Výzkum a vývoj technologie jaderných reaktorů chlazených fluoridovými solemi</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2018

Kód důvěrnosti údajů

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

Název statě ve sborníku

Transactions of the American Nuclear Society

ISBN

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ISSN

0003-018X

e-ISSN

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Počet stran výsledku

3

Strana od-do

1445-1447

Název nakladatele

American Nuclear Society

Místo vydání

Illinois

Místo konání akce

Philadelphia, Pennsylvania, USA

Datum konání akce

17. 6. 2018

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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