Presentation Information

4:30 PM - 4:45 PM JST(7:30 AM - 7:45 AM UTC)

[2G11]Chemical behaviors of ODS FeCrAl alloys in liquid lead bismuth eutectic stirred flow at 1173K

*Yota Koike¹, Sota Hagiwara¹, Masatoshi Kondo¹ (1. Science Tokyo)

Keywords:

Liquid lead-bismuth eutectic,ODS-FeCrAl alloys,Hydrogen production,Corrosion,Erosion

Liquid lead bismuth eutectic (LBE) is a candidate coolant of fast reactors and concentrated solar power plant systems. The high-temperature operation of liquid LBE coolant system at 1173 K enables the application as high-temperature heat source for the hydrogen production of Iodine-Sulfur cycle. The purpose of the present study is to clarify the corrosion behavior of ODS-FeCrAl alloy in liquid LBE flow at 1173K. The specimens of ODS-FeCrAl alloy SP10 (Fe-15Cr-6Al) and 316L austenitic steel were exposed to liquid LBE stirred flow at 1173K for 250 hours. The pre-oxidized SP10 specimen revealed excellent corrosion resistance, though the non-pre-oxidized specimen revealed the thickness reduction.

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