Phase equilibria and oxidation behavior of Ir-rich Ir-Y binary alloys

Nobuaki Sekido*, Hideyuki Murakami, Yoko Yamabe-Mitarai

*この研究の対応する著者

研究成果: Article査読

10 被引用数 (Scopus)

抄録

The phase equilibria and oxidation behavior of Ir-Y binary alloys have been investigated. A phase diagram at the Ir-rich end in the Ir-Y binary system has been proposed on the basis of experimental results. Iridium is found to dissolve little Y in the FCC solid solution. The pure-Ir and Ir-Y binary alloys exhibit severe weight loss upon air-exposure at 1373 K with elapsed time. Protective oxide layers are not formed on the surface of the alloys with Y up to, at least, 20 at.%. The kinetics of the oxidation is controlled by the formation and sublimation of Ir oxides at the surface.

本文言語English
ページ(範囲)107-112
ページ数6
ジャーナルJournal of Alloys and Compounds
476
1-2
DOI
出版ステータスPublished - 2009 5 12
外部発表はい

ASJC Scopus subject areas

  • 材料力学
  • 機械工学
  • 金属および合金
  • 材料化学

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