Effects of several impurity additions on microstructural evolution in high-purity Fe-9Cr ferritic alloys after helium implantation

T. Nagasaka, T. Shibayama, H. Kayano, Akira Hasegawa, K. Abe

研究成果: Article査読

1 被引用数 (Scopus)

抄録

The purity is one of the key issues in the development of low-activation ferritic steels for fusion applications to reduce the concentration of highly radioactive elements. In this work a high-purity Fe-9Cr alloy and impurity-doped alloys were prepared from an ultra-high-purity iron and high-purity elements using an advanced arc-melting technique. In order to study the influence of helium on microstructural evolution, helium ions were implanted into the alloys up to 1000 at ppm by an accelerator, and then TEM observation was carried out after annealing. The growth of cavities in a sulfur-doped alloy was much larger than that in the high-purity one. The role of trace impurity elements in the helium effect is discussed.

本文言語English
ページ(範囲)335-346
ページ数12
ジャーナルPhysica Status Solidi (A) Applied Research
167
2
DOI
出版ステータスPublished - 1998 1月 1

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学

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