Investigation of the sensitivity to EAC of steel T91 in contact with liquid LBE

Gabriele, Fosca Di; Doubková, Alena; Hojná, Anna

doi:10.1016/j.jnucmat.2008.02.029

Cited by 25 publications

(19 citation statements)

References 9 publications

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“…The primary factor limiting the technological viability of the Pb and Pb-Bi eutectic is their corrosive nature towards structural steels. Such coolant has tendency to corrode/dissolute alloying elements from the fuel cladding and structural materials [1,[5][6][7][8][9] within the reactor and causes liquid metal embrittlement (LME) [1,[10][11][12][13][14]. Oxide scales are known to be able to protect the structural alloys against the liquid metal corrosion [1,7].…”

Section: Introductionmentioning

confidence: 99%

Characterisation of Oxides by Advanced Techniques

Duchoň

Halodová

Lorincink

et al. 2018

Acta Metall. Slovaca

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For the safe development of GenIV nuclear reactors, it is necessary to study the compatibility of structural materials with new coolants. Current work describes the behavior of ferriticmartensitic steel T91 in a Heavy Liquid Metal environment. Specimens were pre-stressed up to yield strength and subsequently exposed to the lead-bismuth eutectic (LBE) under static conditions for 2000 hours. The goal was to identify the susceptibility to crack initiation under selected experimental conditions. The examination of metal-LBE interface was done in a reference position of the sample using the SEM equipped with EDX. Formation of oxide scales observed on the interface had no signs of crack initiation. The oxide was characterized by a twolayer structure. A TEM lamella was created from the sample by a FIB in-situ lift-out technique and it was subsequently analyzed in HRTEM. Individual oxide layers were identified and characterized by SAED, EELS and EDS techniques. Finally, STEM-HAADF and EFTEM techniques were used to visualize the matrix-oxide interface.

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Section: Introductionmentioning

confidence: 99%

Characterisation of Oxides by Advanced Techniques

Duchoň

Halodová

Lorincink

et al. 2018

Acta Metall. Slovaca

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“…Nicaise et al [20] considered LME as the decrease of surface energy by wetting. Others attributed it to the dynamic strain aging (DSA) or liquid metal environment assisted crack (EAC) nucleation and branching [8,21], stress assisting liquid metal to dissolve and transport solid metal atoms, complex oxidation reaction, etc. [8-11, 13, 22].…”

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

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“…In general, it has been reported [3] that structural materials are most sensitive to LME in a range of temperatures close to the melting point of the LM. In particular, cases of LME sensitivity in LBE (T m = 125°C), with not specified oxygen contents, were reported for T91 (supplied by different producers) at 160°C [4], 300°C [5] and 350°C [2]. By several authors [6], [7] was observed 20-30% decrease of the fracture resistance of T91 steel in LBE at 200-300°C, though not accompanied by fully cleavage-like fracture.…”

Section: Introductionmentioning

confidence: 99%