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タイトル: Corrosion characteristics of reduced activation ferritic-martensitic steel EUROFER by Li₂TiO₃ with excess Li
著者: Mukai, Keisuke
Sanchez, Fernando
Hoshino, Tsuyoshi
Knitter, Regina
著者名の別形: 向井, 啓祐
キーワード: Corrosion
RAFM steel
Ceramic breeder
DEMO blanket
Compatibility
発行日: May-2018
出版者: Elsevier BV
誌名: Nuclear Materials and Energy
巻: 15
開始ページ: 190
終了ページ: 194
抄録: In a solid breeding blanket, ceramic breeder pebbles are in contact with reduced activation ferritic martensitic (RAFM) steel at high temperatures for years and accordingly form a corrosion layer on the blanket structural steel. Present study focuses on corrosion characteristics of EUROFER97 RAFM steel by an advanced breeder material of Li₂TiO₃ with excess Li (initial ratio of Li/Ti = 2.2) at 623, 823, and 1073 K under sweep gas (He + 0.1% H₂) flow. Formation of a thick oxide double layer was found on the surface of the EUROFER plates heated at 823 and 1073 K, while the corrosion layer formed at 673 K was < 1 µm even after 56 days. On the other hand, the changes that appeared on the contacted surface of the breeder pellet were insignificant. The growth of the corrosion layer shows that the corrosion caused by inward migrations mainly of Li and O from the breeder material will have little influence on mechanical property of the blanket structural steel.
著作権等: © 2018 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/BY-NC-ND/4.0/).
URI: http://hdl.handle.net/2433/233902
DOI(出版社版): 10.1016/j.nme.2018.04.010
出現コレクション:学術雑誌掲載論文等

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