Characterization of electroplated platinum-iridium alloys on the nickel-base single crystal superalloy

Yingna Wu*, Aya Suzuki, Hideyuki Murakami, Seiji Kuroda

*この研究の対応する著者

研究成果: Article査読

13 被引用数 (Scopus)

抄録

As a high temperature protective layer, platinum-iridium alloys were electroplated on the nickel-base single crystal superalloy TMS-82+ from amidosulfuric acid solutions by the direct current method. It was found that Ir content in the films was always lower than the ratio of concentration ([Ir 3+]/([PtCl62-] + [Ir3+])) in the electrolytes, indicating that preferential deposition of Pt occurred in this study. The asdeposited Pt-Ir films formed an fee single phase structure with a granular surface. When Ir content exceeded 3 at%, Pt-Ir films exhibited the 〈111〉 preferred growth orientation. It was also found that pre-deposition of Ni and Pt promoted the deposition rate and changed composition of overlaying Pt-Ir films.

本文言語English
ページ(範囲)2176-2179
ページ数4
ジャーナルMaterials Transactions
46
10
DOI
出版ステータスPublished - 2005 10月
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

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