Corrosion of Inconel 800HT Alloy in Molten Fluoride Salts

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F26722445%3A_____%2F24%3AN0000009" target="_blank" >RIV/26722445:_____/24:N0000009 - isvavai.cz</a>

Result on the web

<a href="https://journalmt.com/artkey/mft-202405-0012_corrosion-of-inconel-800ht-alloy-in-molten-fluoride-salts.php" target="_blank" >https://journalmt.com/artkey/mft-202405-0012_corrosion-of-inconel-800ht-alloy-in-molten-fluoride-salts.php</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.21062/mft.2024.087" target="_blank" >10.21062/mft.2024.087</a>

Result language

angličtina

Original language name

Corrosion of Inconel 800HT Alloy in Molten Fluoride Salts

Original language description

Molten salt reactors are one of the technologies developed under GEN IV nuclear research. The molten mix of LiF and BeF2, LiF, NaF nad KF, or NaBF4 and NaF act both as a reactor coolant both in primary and secondary loop. The combination of molten fluorides and high temperature creates highly corrosive environment. The aim of this work was to test corrosion resistance of Inconel 800HT alloy in molten FLiNaK, FliBe and NaBF4-NaF mix. The testing tube was filled with salt mixture and heated to 600-725 degrees C for a total of 1800 hours. The material exposed to NaBF4-NaF mix shoved mild corrosion attack on grain boundaries. Samples exposed to FLiNaK salt were more damaged, largely the part above the salt surface. The intergranular corrosion was also observed, more severe than in the case of NaBF4-NaF environment. Corrosion in the FLiBe salt caused depletion of alloying metals from the material's surface. In all cases was dissolving of Cr into the melt identified as the main mechanism. The corrosion was accelerated by impurities in the salt mix, mostly water forming hydrogen fluoride gas in combination with insufficient seal of the testing tube.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

20501 - Materials engineering

Project

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Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2024

Confidentiality

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

Name of the periodical

Manufacturing Technology

ISSN

1213-2489

e-ISSN

2787-9402

Volume of the periodical

24

Issue of the periodical within the volume

5

Country of publishing house

CZ - CZECH REPUBLIC

Number of pages

10

Pages from-to

755-764

UT code for WoS article

001389468500006

EID of the result in the Scopus database

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