Yi-Bo Yang, Yu-Hong Zhao, Xiao-Lin Tian, Hua Hou. Microscopic phase-field simulation for precipitation process of Ni60Al20V20 medium entropy alloy [J]. Acta Physica Sinica, 2020, 69(14): 140201-1
- Acta Physica Sinica
- Vol. 69, Issue 14, 140201-1 (2020)
Fig. 1. Atomic evolution morphology of Ni60Al20V20 middle entropy alloy during precipitation at 1050 K: (a) t = 1000; (b) t = 3000; (c) t = 9000; (d) t = 40000; (e) t = 80000; (f) t = 500000
Fig. 2. Structural sketches of L 10, L 12 and DO 22: (a) L 10; (b) L 12; (c) DO 22
Fig. 3. Atom evolution morphology in Ni75Al7.5V17.5 alloy precipitated at 1050 K: (a) t = 6000; (b) t = 8000; (c) t = 16000
Fig. 4. Order parameter distribution of
ordered phase in Ni60Al20V20 middle entropy alloy at different time: (a) Composition order parameter; (b) long-range order parameter.
ordered phase in Ni60Al20V20 middle entropy alloy at different time: (a) Composition order parameter; (b) long-range order parameter. Fig. 5. Order parameter distribution in a
particle of Ni60Al20V20 medium entropy alloy at different time: (a) Composition order parameter; (b) long range-order parameter.
particle of Ni60Al20V20 medium entropy alloy at different time: (a) Composition order parameter; (b) long range-order parameter. Fig. 6. Variation of volume fraction of ordered phases in Ni60Al20V20 alloy with time: (a) L 12 phase; (b) DO 22 phase.
Fig. 7. Average order parameter profiles in the ordered phase: (a) Overall change; (b) local change.
Fig. 8. Evolutions of different atomic site occupation in Ni60Al20V20 MEA: (a) α site; (b) β site.
Fig. 9. Average long-range order parameter curves of
and
phases in Ni60Al20V20 medium entropy alloy: (a)
phase; (b)
phase.
and
phases in Ni60Al20V20 medium entropy alloy: (a)
phase; (b)
phase. Fig. 10. Variation of interatomic interaction potential in Ni60Al20V20 medium entropy alloy with long-range ordered parameters.
Fig. 11. Temperature dependence of the interatomic interaction potential in Ni60Al20V20 medium entropy alloy.
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