• français
    • English
    français
  • Login
Help
View Item 
  •   Home
  • Laboratoire Procédés et Ingénierie en Mécanique et Matériaux (PIMM)
  • View Item
  • Home
  • Laboratoire Procédés et Ingénierie en Mécanique et Matériaux (PIMM)
  • View Item
JavaScript is disabled for your browser. Some features of this site may not work without it.

Liquid metal embrittlement of a dual-phase Al0.7CoCrFeNi high-entropy alloy exposed to oxygen-saturated lead-bismuth eutectic

Article dans une revue avec comité de lecture
Author
GONG, Xing
242850 Shenzhen University [Shenzhen]
XIANG, Congying
563161 Fuzhou University [Fuzhou]
AUGER, Thierry
86289 Laboratoire Procédés et Ingénierie en Mécanique et Matériaux [PIMM]
CHEN, Jiajun
242850 Shenzhen University [Shenzhen]
LIANG, Xiaocong
563161 Fuzhou University [Fuzhou]
YU, Zhiyang
563161 Fuzhou University [Fuzhou]
SHORT, Michael P
301950 Massachusetts Institute of Technology [MIT]
SONG, Min
465414 Central South University [Changsha]
YIN, Yuan
242850 Shenzhen University [Shenzhen]

URI
http://hdl.handle.net/10985/20459
DOI
10.1016/j.scriptamat.2020.113652
Date
2021
Journal
Scripta Materialia

Abstract

This paper reports a new liquid metal embrittlement (LME) system in which a dual-phase Al0.7CoCrFeNi (equimolar fraction) high-entropy alloy (HEA) is embrittled by lead-bismuth eutectic (LBE) at 350 and 500°C. At 350°C, (Ni, Al)-rich BCC phase is embrittled, leading to intragrain cracking within this phase, while the predominant cracking mode changes to BCC/FCC phase boundary decohesion at 500°C. At both temperatures, cracks are rarely seen in the (Co, Cr, Fe)-rich FCC phase, indicating that this phase is immune to LME. Furthermore, the results suggest a transition from an adsorption-dominated LME mechanism at 350°C to a phase boundary wetting-dominated LME mechanism at 500°C.

Files in this item

Name:
PIMM_SM_GONG_2021.pdf
Size:
2.330Mb
Format:
PDF
Embargoed until:
2021-09-01
View/Open

Collections

  • Laboratoire Procédés et Ingénierie en Mécanique et Matériaux (PIMM)

Related items

Showing items related by title, author, creator and subject.

  • Intergranular precipitation-enhanced wetting and phase transformation in an Al0.4CoCrFeNi high-entropy alloy exposed to lead-bismuth eutectic 
    Article dans une revue avec comité de lecture
    GONG, Xing; AUGER, Thierry; ZHU, Wenjian; LEI, Huasheng; XIANG, Congying; YU, Zhiyang; SHORT, Michael; WANG, Pei; YIN, Yuan (Elsevier, 2021-12-23)
    After exposure to oxygen-poor (10^-13–10^-14 wt%) liquid lead-bismuth eutectic (LBE) at 500°C for 500 h, LBE penetrates more than one order of magnitude deeper in an FCC Al0.4CoCrFeNi high-entropy alloy (HEA) deco-rated ...
  • Environmental degradation of structural materials in liquid lead- and lead-bismuth eutectic-cooled reactors 
    Article dans une revue avec comité de lecture
    GONG, Xing; SHORT, Michael P.; AUGER, Thierry; CHARALAMPOPOULOU, Evangelia; LAMBRINOU, Konstantina (Elsevier BV, 2022-01-24)
    Liquid lead (Pb)- and lead–bismuth eutectic (LBE)-cooled fast neutron reactors (Gen-IV LFRs) are one of the most technologically mature fission reactor technologies, due to their inherent safety, high power density, and ...
  • Le rôle de l'effacement dans l'activité d'esquisse en réalité virtuelle 
    Communication avec acte
    ccFLEURY, Sylvain; HENRY, Gaëtan; JEGO, Jean-François; CHEN, Chu-Yin; ccRICHIR, Simon (2021)
    Dans son ouvrage sur les processus de conception, Buxton (2007) indique que la réalisation d’esquisses et leurs modifications doivent être faciles et rapides car il s’agit de s’autoriser des erreurs (des idées mal représentées ...
  • Investigation of crack propagation resistance of 304L, 316L and 316L(N) austenitic steels in liquid sodium 
    Article dans une revue avec comité de lecture
    BARKIA, Bassem; AUGER, Thierry; CABET, Céline; NICOLAS, Laetitia; ROBIN, Raphaël; RIVOLLIER, Matthieu; LORENTZ, Véronique; PERRIN, E. (Elsevier, 2018)
    In order to assess the susceptibility of candidate structural materials to Liquid Metal Embrittlement (LME), the fracture behavior of three grades of austenitic steels was investigated in oxygenated (200 wppm) liquid sodium ...
  • Wetting by liquid sodium and fracture path analysis of sodium induced embrittlement of 304L stainless steel 
    Article dans une revue avec comité de lecture
    BARKIA, Bassem; AUGER, Thierry; COUROUAU, Jean Louis; BOURGON, Julie (Cambridge University Press (CUP), 2018)
    The wettability of the 304L steel is an important parameter in Liquid Metal Embrittlement studies. Empirically, it is found to be greatly enhanced by pre-exposure to oxygenated liquid sodium. The corrosion interface formed ...

Browse

All SAMCommunities & CollectionsAuthorsIssue DateCenter / InstitutionThis CollectionAuthorsIssue DateCenter / Institution

Newsletter

Latest newsletterPrevious newsletters

Statistics

Most Popular ItemsStatistics by CountryMost Popular Authors

ÉCOLE NATIONALE SUPERIEURE D'ARTS ET METIERS

  • Contact
  • Mentions légales

ÉCOLE NATIONALE SUPERIEURE D'ARTS ET METIERS

  • Contact
  • Mentions légales