He-cavity accumulation at oxide particle-matrix interface in Ni-base ODS superalloy

Azusa Konno, Naoko H. Oono, Shigeharu Ukai, Sosuke Kondo, Okinobu Hashitomi, Akihiko Kimura

研究成果: Article査読

2 被引用数 (Scopus)

抄録

Ni-based ODS superalloy is found to be an effective candidate for a core material of Gen. IV nuclear reactors by means of a Fe/He dual-ion bombardment simulation technique. It accumulates He cavities at the dispersed oxide particle/matrix interface, and avoids the aggregation of the cavities at the other sinks even after the irradiation up to 100.1 dpa at 1000°C. Swelling was reduced less than 1%. Cavity growth and sink strengths were estimated based on TEM observation and the rate theory. The estimations support the capability of the oxide particles for trapping the He cavities and suppressing their accumulation at grain boundaries.

本文言語English
ページ(範囲)1636-1639
ページ数4
ジャーナルMaterials Transactions
58
12
DOI
出版ステータスPublished - 2017
外部発表はい

ASJC Scopus subject areas

  • 材料科学(全般)
  • 凝縮系物理学
  • 材料力学
  • 機械工学

フィンガープリント

「He-cavity accumulation at oxide particle-matrix interface in Ni-base ODS superalloy」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル