Abstract
In this paper, a microscopic phase-field model was used to investigate the effect of the oriented diffusion channel and the phases’ effect mechanism for the Ni75Al6.0V19.0 alloy during a phase transformation process. A diffusion channel of V was formed in the [100] direction. The oriented growth of DO22 in this direction, when an elastic misfit stress field existed, forced Al to form a diffusion channel next to DO22, resulting in L12-oriented growth. With an increase in stress, the oriented growth increased initially and then decreased. At a higher stress, the average values of the occupation probability for V atoms became constant later while Al atoms earlier.
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Yang, K., Chen, Z., Dong, W. et al. Microscopic phase-field study for oriented diffusion channel effect of nickel-based alloy and phases’ effect mechanism. Sci. China Technol. Sci. 54, 835–840 (2011). https://doi.org/10.1007/s11431-011-4301-8
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DOI: https://doi.org/10.1007/s11431-011-4301-8