Interdiffusion behavior of electroplated platinum-iridium alloys on nickel-base single crystal superalloy TMS-82+

Y. N. Wu, A. Suzuki, H. Murakami, S. Kuroda

研究成果: Conference contribution

抄録

In the present study, platinum-iridium alloys (Ir = 15.8, 27.3, 36.1, 100at.%) were electroplated on a nickel-base single crystal superalloy TMS-82+ followed by a diffusion treatment at 1373K for 1 h. Interdiffusion behavior between the Pt-Ir films and substrates was investigated in terms of chemical composition, phase constitution and morphology. X-ray analysis revealed that annealed specimens consisted of several fee solid solutioned phases with various lattice parameters, together with ordered intermetallic compounds (Ll 2-(Pt,Ni)3Al and B2-(Ir,Ni)Al), due to the inward diffusion of Pt and Ir from the electrodeposited films to the superalloy substrates, and the outward diffusion of solute elements (Ni, Al, Cr, Co) in the superalloy substrates into the films during annealing. The depth concentration analysis indicated that the Pt-36.1Ir film effectively retarded the outward diffusion of solute elements, especially nickel, from the substrate.

本文言語English
ホスト出版物のタイトルHigh-Temperature Oxidation and Corrosion 2005 - Proceedings of the International Symposium on High-Temperature Oxidation and Corrosion 2005
出版社Trans Tech Publications Ltd
ページ293-300
ページ数8
ISBN(印刷版)9780878494095
DOI
出版ステータスPublished - 2006
外部発表はい
イベントInternational Symposium on High-Temperature Oxidation and Corrosion, ISHOC-05 - Nara, Japan
継続期間: 2005 11 302005 12 2

出版物シリーズ

名前Materials Science Forum
522-523
ISSN(印刷版)0255-5476
ISSN(電子版)1662-9752

Other

OtherInternational Symposium on High-Temperature Oxidation and Corrosion, ISHOC-05
国/地域Japan
CityNara
Period05/11/3005/12/2

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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