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Compatibility of erbium oxide coating with liquid lithium-lead alloy and corrosion protection effect of iron layer

机译：氧化lithium与液态锂铅合金的相容性及铁层的防腐作用

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摘要

Li-Pb compatibility of Er_2O_3 and Er_2O_3-Fe two-layer coatings has been explored for an understanding of corrosion behaviors and effects of the protection layer. The coatings were peeled off after static Li-Pb immersion test at 600 C due to the degradation of adhesion between the coating-substrate interface. A loss of Er and then subsequent corrosion of Er_2O_3 were shown after immersion at 500 C for 500 and 1505 h. However, the outer Fe layer played a role to decrease corrosion rate of the coatings by comparing with the results of Er_2O_3 single layer coatings. Deuterium permeation measurements after corrosion tests at 500 C showed that the Er_2O_3 coatings kept permeation reduction factors of 10~2-10~3 after 500 h immersion, but seriously degraded after 1505 h immersion. Corrosion mechanisms suggest that corrosion protection properties will be modified by an optimization of the outer Fe layer and a control of oxygen concentration in Li-Pb.
机译：为了了解腐蚀行为和保护层的作用，已探索了Er_2O_3和Er_2O_3-Fe两层涂层的Li-Pb相容性。在600摄氏度的静态Li-Pb浸泡测试后，由于涂层与基材界面之间的粘合力下降，涂层被剥落。在500℃下浸入500和1505 h后，Er损失，随后发生Er_2O_3腐蚀。然而，与Er_2O_3单层涂层的结果相比，外层Fe起到了降低涂层腐蚀速率的作用。经过500 C腐蚀试验后的氘渗透测量结果表明，Er_2O_3涂层在浸泡500 h后仍能保持10〜2-10〜3的透过率，而在浸泡1505 h后会严重降解。腐蚀机理表明，腐蚀防护性能将通过优化外Fe层和控制Li-Pb中的氧浓度来改变。

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  • 来源
    《Fusion Engineering and Design》 |2013年第8期|640-643|共4页
  • 作者

    Takumi Chikada; Akihiro Suzuki; Takayuki Terai; Takeo Muroga; Freimut Koch;

  • 作者单位

    Institute of Engineering Innovation, School of Engineering, The University of Tokyo, Tokyo, Japan;

    Nuclear Professional School, School of Engineering, The University of Tokyo, Tokai, Japan;

    Institute of Engineering Innovation, School of Engineering, The University of Tokyo, Tokyo, Japan;

    Department of Helical Plasma Research, National Institute for Fusion Science, Toki, Japan;

    Max-Planck-lnstitut fuer Plasmaphysik, Garching bei Muenchen, Germany;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Lithium-lead; Tritium permeation; Corrosion; Coating; Erbium oxide;

    机译：锂铅t渗透腐蚀;涂层;氧化;

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