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

Nobuaki Sekido, Hideyuki Murakami, Yoko Yamabe-Mitarai

研究成果: Article

10 引用 (Scopus)

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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.

元の言語English
ページ(範囲)107-112
ページ数6
ジャーナルJournal of Alloys and Compounds
476
発行部数1-2
DOI
出版物ステータスPublished - 2009 5 12
外部発表Yes

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

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