HREM Observation of the Interface between Laves-phases and Matrix Phases in Inconel 718 by Using a High-voltage Electron Microscope

この論文にアクセスする

この論文をさがす

著者

    • SEGAWA Masayuki
    • Graduate Student, Institute for Advanced Materials Processing, Tohoku University

抄録

The Ni-base alloy, Inconel 718 was observed with high-resolution electron microscopy using by a high-voltage electron microscope in order to analyze the morphology of the interface between Laves-phases and the austenite matrix phases. The Laves-phase had a plate shape and had a (004)<sub>Laves</sub>||{111}<sub>γ</sub>; [110]<sub>Laves</sub>||<110><sub>γ</sub> relationship in the interface with the matrix (γ). The interface had the step-structure although the interface looked like a planar shape macroscopically. It was considered that the step-structures were introduced to relax the lattice strain between the Laves-phases and the matrix. The step-structures were observed at intervals of almost 11.4–40.4 nm and 2.3–9.6 nm in the samples aged at 1073 and 1123 K, respectively. It was considered that the decrease of the interval of step-structure was due to the increase of the lattice strain between the Laves-phases and the matrix with increasing the aging temperature from 1073 to 1123 K.

収録刊行物

  • ISIJ international

    ISIJ international 38(12), 1375-1378, 1998-12-15

    The Iron and Steel Institute of Japan

参考文献:  8件中 1-8件 を表示

  • <no title>

    MUZYKA D. R.

    The Superalloys 113, 1972

    被引用文献1件

  • <no title>

    PAULONIS D. F.

    Trans. Am. Soc. Met. 62, 611, 1969

    被引用文献6件

  • <no title>

    RAYMOND E. l.

    Trans. Metall. Soc. AIME 239, 1415, 1967

    被引用文献5件

  • <no title>

    KIRMAN I.

    Metall. Trans. 1, 2667, 1970

    被引用文献5件

  • <no title>

    HE J.

    Acta Metall. Mater. 43, 4403, 1995

    被引用文献1件

  • <no title>

    MORI N.

    J. Electron Microsc. 39, 433, 1990

    被引用文献11件

  • <no title>

    TANIYAMA A.

    J. Electron. Microsc. 45, 232, 1996

    被引用文献9件

  • <no title>

    TANIYAMA A.

    J. Electron Microsc. 46, 303, 1997

    被引用文献10件

各種コード

ページトップへ