Zhong Chu, Zheng Chen, Yongxin Wang, Yanli Lu,  and Yongsheng Li, Microscopic phase-field simulation of L12 and D022 phases during the early precipitation process of Ni-Cr-Al alloys, J. Univ. Sci. Technol. Beijing, 13(2006), No. 5, pp. 429-434. https://doi.org/10.1016/S1005-8850(06)60087-X
Cite this article as:
Zhong Chu, Zheng Chen, Yongxin Wang, Yanli Lu,  and Yongsheng Li, Microscopic phase-field simulation of L12 and D022 phases during the early precipitation process of Ni-Cr-Al alloys, J. Univ. Sci. Technol. Beijing, 13(2006), No. 5, pp. 429-434. https://doi.org/10.1016/S1005-8850(06)60087-X
Materials

Microscopic phase-field simulation of L12 and D022 phases during the early precipitation process of Ni-Cr-Al alloys

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  • Corresponding author:

    Zhong Chu    E-mail: cz@qtech.edu.cn

  • Received: 25 February 2005
  • The influence of temperature on the precipitation mechanism and sequence of L12 and D022 phases during the early pre-cipitation process of a Ni-15.5at%Cr-14at%Al alloy was simulated based on the microscopic phase-field model. In the range from 873 to 1373 K,the precipitation mechanism transformed from spinodal decomposition to non-classic nucleation and growth; the in-cubation period prolonged gradually with increasing temperature. The volume fraction of L12 phases increased and that of D022 phases decreased. D022 phases disappeared at 1373 K,and finally single-phase L12 phases were formed.
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