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Title
Japanese: 
English:Metallurgical study on erosion and corrosion behaviors of steels exposed to liquid lead–bismuth flow 
Author
Japanese: 近藤 正聡, 高橋 実, Tadashi Suzuki, Kotaro Ishikawa, 羽田 晃治, Suizheng Qiu, 関本 博.  
English: Masatoshi Kondo, Minoru Takahashi, Tadashi Suzuki, Kotaro Ishikawa, Koji Hata, Suizheng Qiu, Hiroshi Sekimoto.  
Language English 
Journal/Book name
Japanese: 
English:Journal of Nuclear Materials 
Volume, Number, Page Vol. 343        pp. 349-359
Published date Aug. 2005 
Publisher
Japanese: 
English:Elsevier 
Conference name
Japanese: 
English: 
Conference site
Japanese: 
English: 
DOI https://doi.org/10.1016/j.jnucmat.2004.08.037
Abstract The mechanism of erosion and corrosion of steels in lead–bismuth eutectic (45Pb–55Bi) flow was investigated. Nine steels were simultaneously exposed to the Pb–Bi flow at the temperature of 550C, the loop temperature difference of 150C, and the flow velocity of 2 m/s for 1000 h. The liquid metal corrosion, or Pb–Bi penetration into steels occurred in all the steels, and severe erosion took place in some of the steels under low oxygen concentration of 2·10 ^-9 wt% in Pb–Bi. The corrosion layer penetrated by Pb–Bi was deeper in the steels containing a lower content of Cr. It was con-firmed that the erosion was caused by hydrodynamic carrying away of weakened surface materials due to Pb–Bi pen-etration. The large-scale erosion could be caused by the detachment of lumps of corroded materials that had defects formed by dissolution of alloying elements.

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