Electron microscopy study of Ni/Ni3Al diffusion-couple interface-I. Microstructural observation and microchemical analysis

M. Watanabe, Z. Horita, David J. Smith, M. R. McCartney, T. Sano, M. Nemoto

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The Ni/Ni3Al diffusion-couple interface has been examined using the techniques of analytical electron microscopy and high-resolution electron microscopy. It is shown that the Ni-rich solid solution phase (γ phase) is transformed from the Ni3Al-based intermetallic phase (γ′ phase) and that it extends into the γ′ phase during diffusion annealing. The orientations of the γ and γ′ phases remain the same. Coherency exists across the γ/γ′ phase boundary. The position of the boundary is not well defined but it is in an equilibrium condition in terms of composition.

元の言語英語
ページ(範囲)3381-3387
ページ数7
ジャーナルActa Metallurgica Et Materialia
42
発行部数10
DOI
出版物ステータス出版済み - 10 1994

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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