Investigation of the effect of lead–bismuth eutectic on the fracture properties of T91 and 316L

Gunter Coen; Joris Van den Bosch; Abderrahim Al Mazouzi; Joris Degrieck; Serguei Gavrilov

doi:10.1016/j.jnucmat.2009.10.021

Investigation of the effect of lead–bismuth eutectic on the fracture properties of T91 and 316L

Gunter Coen, Joris Van den Bosch, Abderrahim Al Mazouzi, Joris Degrieck, Serguei Gavrilov

Research output › peer-review

Abstract

Liquid metal embrittlement (LME) may decrease the mechanical integrity of the structure. Therefore quantification of the embrittlement effects by fracture mechanics assessment is highly needed for possible future licensing. Conventional fracture mechanics methods however cannot be applied to tests in liquid metal environment due to the opaque and conducting nature of lead–bismuth eutectic (LBE). Therefore new methods for assessment of plane strain fracture toughness in LBE were examined. The plane strain fracture toughness of T91 and 316L in liquid lead–bismuth environment at 200 and 300 °C is compared with the results obtained in air. The fracture toughness of T91 decreases in LBE while sufficient ductility remains, whereas the toughness of 316L is less affected.

Original language	English
Pages (from-to)	122-128
Journal	Journal of Nuclear Materials
Volume	398
Issue number	1-3
DOIs	https://doi.org/10.1016/j.jnucmat.2009.10.021
State	Published - Mar 2010
Event	2008 - IWSMT: 9th International Workshop on Spallation Materials Technology - JAEA, Sapporo Duration: 19 Oct 2008 → 24 Oct 2008

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10.1016/j.jnucmat.2009.10.021License: Other

Cite this

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title = "Investigation of the effect of lead–bismuth eutectic on the fracture properties of T91 and 316L",

abstract = "Liquid metal embrittlement (LME) may decrease the mechanical integrity of the structure. Therefore quantification of the embrittlement effects by fracture mechanics assessment is highly needed for possible future licensing. Conventional fracture mechanics methods however cannot be applied to tests in liquid metal environment due to the opaque and conducting nature of lead–bismuth eutectic (LBE). Therefore new methods for assessment of plane strain fracture toughness in LBE were examined. The plane strain fracture toughness of T91 and 316L in liquid lead–bismuth environment at 200 and 300 °C is compared with the results obtained in air. The fracture toughness of T91 decreases in LBE while sufficient ductility remains, whereas the toughness of 316L is less affected.",

keywords = "lead-bismuth eutectic, T91, 316L, LME",

author = "Gunter Coen and {Van den Bosch}, Joris and {Al Mazouzi}, Abderrahim and Joris Degrieck and Serguei Gavrilov",

note = "Score = 10; 2008 - IWSMT : 9th International Workshop on Spallation Materials Technology ; Conference date: 19-10-2008 Through 24-10-2008",

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AU - Coen, Gunter

AU - Van den Bosch, Joris

AU - Al Mazouzi, Abderrahim

AU - Degrieck, Joris

A2 - Gavrilov, Serguei

N1 - Score = 10

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N2 - Liquid metal embrittlement (LME) may decrease the mechanical integrity of the structure. Therefore quantification of the embrittlement effects by fracture mechanics assessment is highly needed for possible future licensing. Conventional fracture mechanics methods however cannot be applied to tests in liquid metal environment due to the opaque and conducting nature of lead–bismuth eutectic (LBE). Therefore new methods for assessment of plane strain fracture toughness in LBE were examined. The plane strain fracture toughness of T91 and 316L in liquid lead–bismuth environment at 200 and 300 °C is compared with the results obtained in air. The fracture toughness of T91 decreases in LBE while sufficient ductility remains, whereas the toughness of 316L is less affected.

AB - Liquid metal embrittlement (LME) may decrease the mechanical integrity of the structure. Therefore quantification of the embrittlement effects by fracture mechanics assessment is highly needed for possible future licensing. Conventional fracture mechanics methods however cannot be applied to tests in liquid metal environment due to the opaque and conducting nature of lead–bismuth eutectic (LBE). Therefore new methods for assessment of plane strain fracture toughness in LBE were examined. The plane strain fracture toughness of T91 and 316L in liquid lead–bismuth environment at 200 and 300 °C is compared with the results obtained in air. The fracture toughness of T91 decreases in LBE while sufficient ductility remains, whereas the toughness of 316L is less affected.

KW - lead-bismuth eutectic

KW - T91

KW - 316L

KW - LME

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JO - Journal of Nuclear Materials

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T2 - 2008 - IWSMT

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