Fracture toughness assessment of ferritic–martensitic steel in liquid lead–bismuth eutectic

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Fracture toughness assessment of ferritic–martensitic steel in liquid lead–bismuth eutectic. / Van den Bosch, Joris; Coen, Gunter; Al Mazouzi, Abderrahim; Degrieck, Joris; Bosch, Rik-Wouter (Peer reviewer).

In: Journal of Nuclear Materials, Vol. 385, No. 2, 31.03.2009, p. 350-357.

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@article{749d06c4ccce47b6bfbfa744ad30b789,
title = "Fracture toughness assessment of ferritic–martensitic steel in liquid lead–bismuth eutectic",
abstract = "The presence of micro-cracks at the surface of a ferritic–martensitic steel is known to favour its embrittlement by liquid metals and thus decrease the mechanical properties of the structural materials. Unfortunately, conventional fracture mechanics methods cannot be applied to tests in liquid metal environment due to the opaque and conducting nature of the LBE. Therefore new methods based on the normalization technique for assessment of plain strain fracture toughness in LBE were examined. This paper discusses the assessment of the plain strain fracture toughness of T91 steel in liquid lead bismuth environment at 473 K, tested at a displacement rate of 0.25 mm/min and makes the comparison with results obtained in air at the same temperature and displacement rate. Although there is a decrease of the fracture toughness by 20–30{\%} when tested in LBE, the toughness of the T91 steel remains sufficient under the tested conditions.",
keywords = "lead bismuth eutectic, fracture toughness, T91",
author = "{Van den Bosch}, Joris and Gunter Coen and {Al Mazouzi}, Abderrahim and Joris Degrieck and Rik-Wouter Bosch",
note = "Score = 10",
year = "2009",
month = "3",
day = "31",
doi = "10.1016/j.jnucmat.2008.11.024",
language = "English",
volume = "385",
pages = "350--357",
journal = "Journal of Nuclear Materials",
issn = "0022-3115",
publisher = "Elsevier",
number = "2",

}

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TY - JOUR

T1 - Fracture toughness assessment of ferritic–martensitic steel in liquid lead–bismuth eutectic

AU - Van den Bosch, Joris

AU - Coen, Gunter

AU - Al Mazouzi, Abderrahim

AU - Degrieck, Joris

A2 - Bosch, Rik-Wouter

N1 - Score = 10

PY - 2009/3/31

Y1 - 2009/3/31

N2 - The presence of micro-cracks at the surface of a ferritic–martensitic steel is known to favour its embrittlement by liquid metals and thus decrease the mechanical properties of the structural materials. Unfortunately, conventional fracture mechanics methods cannot be applied to tests in liquid metal environment due to the opaque and conducting nature of the LBE. Therefore new methods based on the normalization technique for assessment of plain strain fracture toughness in LBE were examined. This paper discusses the assessment of the plain strain fracture toughness of T91 steel in liquid lead bismuth environment at 473 K, tested at a displacement rate of 0.25 mm/min and makes the comparison with results obtained in air at the same temperature and displacement rate. Although there is a decrease of the fracture toughness by 20–30% when tested in LBE, the toughness of the T91 steel remains sufficient under the tested conditions.

AB - The presence of micro-cracks at the surface of a ferritic–martensitic steel is known to favour its embrittlement by liquid metals and thus decrease the mechanical properties of the structural materials. Unfortunately, conventional fracture mechanics methods cannot be applied to tests in liquid metal environment due to the opaque and conducting nature of the LBE. Therefore new methods based on the normalization technique for assessment of plain strain fracture toughness in LBE were examined. This paper discusses the assessment of the plain strain fracture toughness of T91 steel in liquid lead bismuth environment at 473 K, tested at a displacement rate of 0.25 mm/min and makes the comparison with results obtained in air at the same temperature and displacement rate. Although there is a decrease of the fracture toughness by 20–30% when tested in LBE, the toughness of the T91 steel remains sufficient under the tested conditions.

KW - lead bismuth eutectic

KW - fracture toughness

KW - T91

UR - http://ecm.sckcen.be/OTCS/llisapi.dll/open/ezp_97060

UR - http://knowledgecentre.sckcen.be/so2/bibref/5771

U2 - 10.1016/j.jnucmat.2008.11.024

DO - 10.1016/j.jnucmat.2008.11.024

M3 - Article

VL - 385

SP - 350

EP - 357

JO - Journal of Nuclear Materials

JF - Journal of Nuclear Materials

SN - 0022-3115

IS - 2

ER -

ID: 79797