Fracture mechanics behavior of the T91 martensitic steel in contact with liquid lead–bismuth eutectic for application in an accelerator driven system

2011 ◽  
Vol 415 (3) ◽  
pp. 293-301 ◽  
Author(s):  
T. Auger ◽  
D. Gorse ◽  
Z. Hamouche-Hadjem ◽  
J. Van den Bosch ◽  
G. Coen ◽  
...  
Keyword(s):  
Fracture Mechanics ◽  
Martensitic Steel ◽  
Liquid Lead ◽  
Driven System ◽  
Accelerator Driven System ◽  
Lead Bismuth Eutectic

Measurements of Fine Structures in the Lead-Bismuth Eutectic Alloy Melts by Differential Scanning Calorimetry

2016 ◽  
Author(s):  
Changqing Ye ◽  
Qiulin Li ◽  
Ping Wu ◽  
Guoyi Tang ◽  
Wei Liu
Keyword(s):  
Differential Scanning Calorimetry ◽  
Melting Process ◽  
Liquid Lead ◽  
Scanning Calorimetry ◽  
Thermal Signal ◽  
Signal Change ◽  
Driven System ◽  
Scan Rate ◽  
Structure Phase Transition ◽  
Lead Bismuth Eutectic

The implementation of the Generation IV nuclear reactors and a spallation target of the accelerated driven system (ADS) concerning to the use of liquid lead-bismuth eutectic (LBE) alloy. The liquid LBE alloy should be fully characterized and especially its physical properties should be completely known to make sure the nuclear safety. Differential scanning calorimetry (DSC) experiments were employed on LBE alloy at a temperature range of room temperature (RT) to 500°C to detect the structure phase transition and obtain the thermal effect of LBE alloy. The results of DSC curves showed that there existed two remarkable thermal signal events at the melting points zones of Pb and Bi during the melting process tested with a scan rate of 2°C/min. Even though the scan rate was increased to 5°C/min, the DSC signal still exhibited the changes of curve slop at the element melting point zone. Just this interesting DSC thermal signal change phenomenon around 300°C contributed to the relationship with the explanation on the severe embrittlement of T91 steel induced by liquid LBE alloy. The results suggest that there existed effective critical size and form of chemical clusters in liquid LBE alloy worked actively on the embrittlement of T91 Steel.

Factors Promoting Embrittlement of T91 Steel in Liquid Lead-Bismuth Eutectic Alloy

2013 ◽  
Author(s):  
Changqing Ye ◽  
Jean-Bernard Vogt ◽  
Ingrid Proriol-Serre
Keyword(s):  
Loading Rate ◽  
Martensitic Steel ◽  
Inert Atmosphere ◽  
Heat Treatment Condition ◽  
Ductile Material ◽  
Liquid Lead ◽  
Low Oxygen ◽  
Test Technique ◽  
Punch Test ◽  
Lead Bismuth Eutectic

The mechanical behavior of the T91 martensitic steel has been studied in liquid lead-bismuth eutectic (LBE) and in inert atmosphere. Several conditions were considered to point out the most sensitive embrittling factor. The Small Punch Test technique has been employed by using smooth specimens. T91 appeared in general as a ductile material, and became brittle in the considered conditions only at least, but not necessarily, if the test was performed in LBE. It turns out that the loading rate appeared as a critical parameter for the occurrence of liquid metal embrittlement of T91 in LBE. For standard heat treatment condition, loading the T91 very slowly instead of rapidly in low oxygen LBE resulted in brittle fracture.

Experimental Investigation of Evaporation Behavior for Lead-Bismuth Eutectic and Its Impurity Tellurium

2004 ◽  
Author(s):  
Shuji Ohno ◽  
Shinya Miyahara ◽  
Yuji Kurata
Keyword(s):  
Saturated Vapor Pressure ◽  
Saturated Vapor ◽  
Radiological Hazards ◽  
Driven System ◽  
Transpiration Method ◽  
Isothermal Evaporation ◽  
Inert Carrier ◽  
Accelerator Driven System ◽  
Lead Bismuth Eutectic ◽  
Partitioning Behavior

Evaporation behavior of lead-bismuth eutectic (LBE) and of tellurium in LBE pool is being investigated experimentally in order to obtain fundamental data on the coolant technology of an accelerator driven system and a fast reactor. The tellurium was used as a non-radioactive chemical surrogate of polonium which would generate and give radiological hazards in the above LBE cooled system. The experiments were conducted using the transpiration method in which saturated vapor in an isothermal evaporation pot was transported by inert carrier gas and collected outside of the pot. The LBE pool was about 500grams in mass and had a surface area of 4cm × 14cm. Two kinds of experiment were performed under the temperature condition in the range of 450 to 750°C to measure the collected vapor mass: LBE experiment without impurity and LBE-tellurium experiment. The paper presents experiment outline and several instructive results such as saturated vapor pressure of LBE, information on evaporation behavior of each element, and equilibrium partitioning behavior of tellurium from liquid to gas phase. These are also suggestive for understanding chemical behavior of polonium in LBE.

The effects of stress on corrosion behavior of SIMP martensitic steel in static liquid lead-bismuth eutectic

2021 ◽  
Vol 187 ◽  
pp. 109477
Author(s):  
Bingsheng Li ◽  
Qing Liao ◽  
Hongpeng Zhang ◽  
Tielong Shen ◽  
Fangfang Ge ◽  
...  
Keyword(s):  
Corrosion Behavior ◽  
Martensitic Steel ◽  
Liquid Lead ◽  
Lead Bismuth Eutectic ◽  
Effects Of Stress

scholarly journals Polonium behavior following a vacuum window rupture in a lead-bismuth eutectic based accelerator driven system

2021 ◽  
Vol 168 ◽  
pp. 109551
Author(s):  
Erik Karlsson ◽  
Jörg Neuhausen ◽  
Alexander Aerts ◽  
Ivan I. Danilov ◽  
Robert Eichler ◽  
...  
Keyword(s):  
Driven System ◽  
Accelerator Driven System ◽  
Lead Bismuth Eutectic ◽  
Vacuum Window
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