Liquid metal embrittlement of the martensitic steel 91: influence of the chemical composition of the liquid metal.

Legris, Alexandre; Nicaise, G.; Vogt, Jean; Foct, J.

doi:10.1016/s0022-3115(01)00730-9

Cited by 66 publications

(48 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Nevertheless, it demonstrates that brittle cracking can occur at the test temperature provided direct contact is obtained with the liquid metal. We can then infer that LME for martensitic steel does not require specific metallurgical conditions as opposed to previous statement [2][3][4]. The notch used in previous studies certainly helps by promoting higher tensile stresses to be reached and concentrating deformation at the surface region.…”

Section: Resultsmentioning

confidence: 71%

Liquid metal embrittlement susceptibility of T91 steel by lead?bismuth

Auger

Lorang

2005

Scripta Materialia

View full text Add to dashboard Cite

To cite this version:Thierry Auger, Gérard Lorang. Liquid metal embrittlement susceptibility of T91 steel by LeadBismuth. submitted to Scripta Materialia. 2004. Liquid metal embrittlement susceptibility of T91 steel by Lead-Bismuth Previous studies on T91 steel in its standard metallurgical state do not provide evidence for Liquid Metal Embrittlement (LME) by eutectic Pb-Bi. In this paper, we show that this steel can be embrittled by Pb-Bi when direct contact between the steel and the liquid metal is obtained by prior ion beam sputtering of the native oxidized film.Introduction:

show abstract

Section: Resultsmentioning

confidence: 71%

Liquid metal embrittlement susceptibility of T91 steel by lead?bismuth

Auger

Lorang

2005

Scripta Materialia

View full text Add to dashboard Cite

show abstract

“…The mechanical properties of steels deteriorate when stressed in liquid metal environment [12][13][14]. Literature [10,15] shows that the total elongation, strength, fracture energy, creep-rupture, ductility, fatigue life of structural materials are deteriorated by LBE.…”

Section: Introductionmentioning

confidence: 99%

Effects of temperature and strain rate on the tensile behaviors of SIMP steel in static lead bismuth eutectic

Liu

Yan

Sha

et al. 2016

Journal of Nuclear Materials

View full text Add to dashboard Cite

“…This rather simple thermodynamic interpretation was, probably, first time proposed in [11] and remains to be discussed (see, e.g., [12][13][14]). …”

Section: Introductionmentioning

confidence: 79%

“…Some hint for the interpretation can be derived from the calculations performed by Legris et al [12] who obtained different adsorption energy of surfactant atoms for different crystallographic orientations of the iron surface.…”

Section: X-ray Diffractionmentioning

confidence: 99%

Mechanism of Embrittlement of Metals by Surface-Active Elements

Teus¹,

Shanina²,

Konchits³

et al. 2018

Metallofiz. Noveishie Tekhnol.

View full text Add to dashboard Cite

The nature of mechanical degradation of metals caused by surface-active elements is studied based on the effects of iodine and gallium in austenitic steels and using ab initio calculations and experimental measurements of electronic structure, X-ray diffraction, mechanical spectroscopy, and mechanical tests. A significant increase in the density of electron states at the Fermi level for iodine in f.c.c. iron is shown that is in consistent with the measurements of the increased concentration of free electrons caused by iodine in austenitic steels. Consequently, the increase in mobility of dislocations by iodine and gallium in austenitic steels is revealed. The localization of the enhanced plastic deformation is discussed as a condition for brittleness. The obtained results are at variance with the widely spread opinion about the determining role of surface energy in a liquid-metal brittleness and, instead, are interpreted based on the correlation between atomic interactions and dislocation properties. Applicability of the available HELP and AIDE hypotheses is discussed.Key words: f.c.c. iron, austenitic steel, surfactants, electronic structure, dislocations, mechanical properties.Природу механічної деґрадації металів, яку спричинено дією поверхнево- Ключові слова: ÃЦÊ-çаліçо, аустенітна сталü, сурôактанти, електронна структура, дислокації, механічні властивості.Природа механическоé деградации металлов, обусловленноé поверхност-но-активнûми элементами, бûла иçучена, основûваясü на влиянии éода и галлия на аустенитнûе стали и исполüçуя ab initio-расчётû и эксперимен-талüнûе исследования электронноé структурû, рентгеновскую диôрак-цию, механическую спектроскопию и механические испûтания. Покаçа-но существенное повûøение плотности электроннûх состояниé на уровне Ôерми в случае éода в ÃЦÊ-желеçе, что согласуется с иçмерениями, в ко-торûх бûла çаôиксирована повûøенная концентрация свободнûх элек-тронов, вûçванная éодом в аустенитнûх сталях. Êак следствие, установ-лено повûøение мобилüности дислокациé, вûçванное éодом и галлием в аустенитнûх сталях. Îбсуждается ролü локалиçации повûøенноé пла-стическоé деôормации в качестве условия хрупкости. Полученнûе ре-çулüтатû противоречат øироко распространённому мнению об определя-ющеé роли поверхностноé энергии в жидкометаллическоé хрупкости и, вместо этого, интерпретируются, основûваясü на корреляции между атомнûми вçаимодеéствиями и дислокационнûми своéствами. Îбсужда-ется применимостü гипотеç HELP и AIDE.Ключевые слова: ÃЦÊ-желеçо, аустенитная сталü, сурôактантû, элек-тронная структура, дислокации, механические своéства.

show abstract

Liquid metal embrittlement of the martensitic steel 91: influence of the chemical composition of the liquid metal.

Cited by 66 publications

References 15 publications

Liquid metal embrittlement susceptibility of T91 steel by lead?bismuth

Liquid metal embrittlement susceptibility of T91 steel by lead?bismuth

Effects of temperature and strain rate on the tensile behaviors of SIMP steel in static lead bismuth eutectic

Mechanism of Embrittlement of Metals by Surface-Active Elements

Contact Info

Product

Resources

About