High temperature characteristics of Ir-Ta coated and aluminized Ni-base single crystal superalloys

A. Suzuki, F. Wu, H. Murakami, H. Imai

研究成果: Article査読

11 被引用数 (Scopus)

抄録

High temperature oxidation and .hot corrosion properties of Ir-Ta coated and aluminized Ni-base superalloys are presented. An Ir-Ta binary alloy, proposed as a novel metallic bond coat material, was coated on a Ni-base single crystal superalloy TMS-75 using electron beam physical vapor deposition, followed by a conventional low activity Al pack cementation process. Cyclic oxidation tests and hot corrosion tests revealed that these Ir-Ta coated and aluminized specimens showed reasonably good oxidation and hot corrosion resistance. In addition, it was found that the formation of TCP phases is suppressed by the presence of the Ir-Ta enriched layer. These results indicated that the Ir-Ta alloy system is promising as a new metallic bond coat material for high temperature structural materials.

本文言語English
ページ(範囲)555-564
ページ数10
ジャーナルScience and Technology of Advanced Materials
5
5-6
DOI
出版ステータスPublished - 2004 9
外部発表はい

ASJC Scopus subject areas

  • 材料科学(全般)

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