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    Ni-base directionally solidified alloy casting manufacturing method
    2.
    发明公开
    Ni-base directionally solidified alloy casting manufacturing method 有权
    Verfahren und Herstellung einer gerichtet erstarrten Gusslegierung auf Nickelbasis

    公开(公告)号：EP0940473A1

    公开(公告)日：1999-09-08

    申请号：EP99104190.6

    申请日：1999-03-02

    申请人： National Research Institute For Metals, Science and Technology Agency ,  KAWASAKI JUKOGYO KABUSHIKI KAISHA

    发明人： Kobayashi, Toshiharu ,  Koizumi, Yutaka ,  Harada, Hiroshi ,  Yamagata, Toshihiro ,  Tamura, Akira ,  Nitta, Seiya

    IPC分类号： C22C19/05 ,  C22F1/10

    CPC分类号： C22C19/057 ,  C22F1/10

    摘要： A Ni-base directionally solidified alloy casting is produced by casting a Ni-base directionally solidified alloy having a composition of 10 to 14 wt.% Co, 2 to 3 wt.% Cr, 1.5 to 2.5 wt.% Mo, 5 to 6.5 wt.% W, 5.7 to 6.5 wt.% Al, 5.5 to 6.5 wt.% Ta, 4.5 to 5.0 wt.% Re, 0.01 to 1.5 wt.% Hf, 0.01 to 0.30 wt.% C, 0.01 to 0.03 wt.% B, and the balance of Ni and inevitable impurities. The Ni-base directionally solidified alloy casting is subjected to a solid solution treatment process at a temperature in the range of 1250 to 1300°C. Then the Ni-base directionally solidified alloy casting is subjected to a two-stage aging process for aging the Ni-base directionally solidified alloy casting at a temperature in the range of 750 to 1200°C.

    摘要翻译： 通过铸造具有10〜14重量％Co，2〜3重量％Cr，1.5〜2.5重量％Mo，5〜6.5组成的Ni基定向凝固合金来制造Ni基定向凝固合金铸件 重量％W，5.7至6.5重量％的Al，5.5至6.5重量％的Ta，4.5至5.0重量％的Re，0.01至1.5重量％的Hf，0.01至0.30重量％的C，0.01至0.03重量％ ％B，余量为Ni和不可避免的杂质。 Ni基定向凝固合金铸件在1250〜1300℃的温度范围内进行固溶处理，然后对Ni基定向凝固合金铸件进行两步老化，使老化 Ni基定向凝固合金铸件，温度范围为750〜1200℃