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Volume 20 Issue 1
Jan.  2013
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Kaitao Bo, Guoguang Cheng, Jie Wu, Pei Zhao, and Jun Wang, Mechanism of Oscillation Mark Formation in Continuous Casting of Steel, J. Univ. Sci. Technol. Beijing, 7(2000), No. 3, pp. 189-192.
Cite this article as:
M. R. Jahangiri, H. Arabi, and S. M. A. Boutorabi, Investigation on the dissolution of η phase in a cast Ni-based superalloy, Int. J. Miner. Metall. Mater., 20(2013), No. 1, pp. 42-48. https://doi.org/10.1007/s12613-013-0691-x
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Investigation on the dissolution of η phase in a cast Ni-based superalloy

  • 通讯作者:

    M. R. Jahangiri    E-mail: jahangiri@iust.ac.ir

  • The dissolution behavior of η phase has been investigated in a cast Ni-based superalloy. The results showed that the platelets and blocks of η phase were formed within the interdendritic regions of the microstructure. Applying standard solution annealing at 1150–1160℃ for a period of 4 h did not result in the complete dissolution of η phase. For the complete dissolution of η phase without residual incipient melting, a 2-step solution annealing has been recommended. After dissolution at high temperatures, the η phase transforms to two MC-type carbides: one is enriched in Ti, Nb, and Ta, and the other is of (Zr,Ti)C type.
  • Investigation on the dissolution of η phase in a cast Ni-based superalloy

    + Author Affiliations
    • The dissolution behavior of η phase has been investigated in a cast Ni-based superalloy. The results showed that the platelets and blocks of η phase were formed within the interdendritic regions of the microstructure. Applying standard solution annealing at 1150–1160℃ for a period of 4 h did not result in the complete dissolution of η phase. For the complete dissolution of η phase without residual incipient melting, a 2-step solution annealing has been recommended. After dissolution at high temperatures, the η phase transforms to two MC-type carbides: one is enriched in Ti, Nb, and Ta, and the other is of (Zr,Ti)C type.
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