Interaction of Mnþ1AXn phases with oxygen-poor, static and fast-flowing liquid lead-bismuth eutectic

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Interaction of Mnþ1AXn phases with oxygen-poor, static and fast-flowing liquid lead-bismuth eutectic. / Tunca, Bensu; Joris, Jasper; Lambrinou, Konstantza; Terentyev, Dmitry (Peer reviewer).

In: Journal of Nuclear Materials, Vol. 520, 520, 08.04.2019, p. 258-272.

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Tunca, Bensu; Joris, Jasper; Lambrinou, Konstantza; Terentyev, Dmitry (Peer reviewer) / Interaction of Mnþ1AXn phases with oxygen-poor, static and fast-flowing liquid lead-bismuth eutectic.

In: Journal of Nuclear Materials, Vol. 520, 520, 08.04.2019, p. 258-272.

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@article{2a3cab1b8a23486085f571633f8a106e,
title = "Interaction of Mnþ1AXn phases with oxygen-poor, static and fast-flowing liquid lead-bismuth eutectic",
keywords = "MAX phase, Lead-bismuth eutectic (LBE), Liquid metal corrosion, Erosion",
author = "Bensu Tunca and Jasper Joris and Konstantza Lambrinou and Dmitry Terentyev",
note = "Score=10",
year = "2019",
month = "4",
doi = "10.1016/j.jnucmat.2019.04.010",
volume = "520",
pages = "258--272",
journal = "Journal of Nuclear Materials",
issn = "0022-3115",
publisher = "Elsevier",

}

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TY - JOUR

T1 - Interaction of Mnþ1AXn phases with oxygen-poor, static and fast-flowing liquid lead-bismuth eutectic

AU - Tunca,Bensu

AU - Joris,Jasper

AU - Lambrinou,Konstantza

A2 - Terentyev,Dmitry

N1 - Score=10

PY - 2019/4/8

Y1 - 2019/4/8

N2 - Select MAX phase-based ceramics were screened with respect to their potential susceptibility to environmentally-assisted degradation in an oxygen-poor liquid lead-bismuth eutectic (LBE) environment, both under static and fast-flowing exposure conditions. The majority of the MAX phases exposed to oxygen-poor (CO 2.2 1010 mass%) static liquid LBE for at least 1000 h at 500 C showed exceptional chemical compatibility with the heavy liquid metal, i.e., no evidence of LBE dissolution attack was observed, despite the absence of a continuous oxide scale on the surface of the exposed MAX phase ceramics. The local LBE interaction observed only with the Zr-rich MAX phases consisted in the partial substitution of Al by Pb/Bi in the MAX phase crystal structure and the in-situ formation of Pb/Bicontaining solid solutions. Moreover, the interaction of Zr-based MAX phases with static liquid LBE was accompanied by the dissolution of parasitic intermetallic phases, which facilitated the further LBE ingress into the ceramic bulk. The erosion resistance of select MAX phase ceramics was also assessed in oxygen-poor (CO z 5 109 mass%) fast-flowing (vz8 m/s) liquid LBE for 1000 h at 500 C. Despite the moderate LBE oxygen concentration, oxidation was the predominant corrosion mechanism, while no erosion damages were observed in the exposed MAX phase ceramics. The resistance of the MAX phase ceramics to both dissolution corrosion and erosion in contact with oxygen-poor static and fast-flowing liquid LBE, respectively, was compared to that of the 316L reference structural stainless steel.

AB - Select MAX phase-based ceramics were screened with respect to their potential susceptibility to environmentally-assisted degradation in an oxygen-poor liquid lead-bismuth eutectic (LBE) environment, both under static and fast-flowing exposure conditions. The majority of the MAX phases exposed to oxygen-poor (CO 2.2 1010 mass%) static liquid LBE for at least 1000 h at 500 C showed exceptional chemical compatibility with the heavy liquid metal, i.e., no evidence of LBE dissolution attack was observed, despite the absence of a continuous oxide scale on the surface of the exposed MAX phase ceramics. The local LBE interaction observed only with the Zr-rich MAX phases consisted in the partial substitution of Al by Pb/Bi in the MAX phase crystal structure and the in-situ formation of Pb/Bicontaining solid solutions. Moreover, the interaction of Zr-based MAX phases with static liquid LBE was accompanied by the dissolution of parasitic intermetallic phases, which facilitated the further LBE ingress into the ceramic bulk. The erosion resistance of select MAX phase ceramics was also assessed in oxygen-poor (CO z 5 109 mass%) fast-flowing (vz8 m/s) liquid LBE for 1000 h at 500 C. Despite the moderate LBE oxygen concentration, oxidation was the predominant corrosion mechanism, while no erosion damages were observed in the exposed MAX phase ceramics. The resistance of the MAX phase ceramics to both dissolution corrosion and erosion in contact with oxygen-poor static and fast-flowing liquid LBE, respectively, was compared to that of the 316L reference structural stainless steel.

KW - MAX phase

KW - Lead-bismuth eutectic (LBE)

KW - Liquid metal corrosion

KW - Erosion

UR - http://ecm.sckcen.be/OTCS/llisapi.dll/open/34144000

U2 - 10.1016/j.jnucmat.2019.04.010

DO - 10.1016/j.jnucmat.2019.04.010

M3 - Article

VL - 520

SP - 258

EP - 272

JO - Journal of Nuclear Materials

T2 - Journal of Nuclear Materials

JF - Journal of Nuclear Materials

SN - 0022-3115

M1 - 520

ER -

ID: 5153812