A comparative study of cyclic oxidized Ir aluminide and aluminized nickel base single crystal superalloy

P. Kuppusami*, H. Murakami

*この研究の対応する著者

研究成果: Article査読

35 被引用数 (Scopus)

抄録

A comparative study on microstructure, composition variation and phase distribution in an Ir-aluminide and an aluminized Ni-base single crystal superalloy, TMS-75 subjected to cyclic oxidation test at 1373 K is reported. The weight change as a function of number of oxidation cycles has demonstrated an improved oxidation resistance for iridium aluminide. While aluminized TMS-75 has an enrichment of aluminium to approximately 50 at.%, an addition of iridium increases the average aluminium concentration of the surface to approximately 70 at.% in the as aluminized condition. Unlike the aluminized TMS-75, the cyclic oxidized Ir aluminide reveals a precipitate free surface layer, followed by a significantly reduced precipitation of γ′-Ni3Al and TCP phases in the diffusion zone.

本文言語English
ページ(範囲)377-388
ページ数12
ジャーナルSurface and Coatings Technology
186
3
DOI
出版ステータスPublished - 2004 9 1
外部発表はい

ASJC Scopus subject areas

  • 化学 (全般)
  • 凝縮系物理学
  • 表面および界面
  • 表面、皮膜および薄膜
  • 材料化学

フィンガープリント

「A comparative study of cyclic oxidized Ir aluminide and aluminized nickel base single crystal 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