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- 2022 (1)
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Schlagworte
- Dimensional mismatch of crystalline lattice periods (misfit) (1) (entfernen)
Organisationseinheit der BAM
- 5.1 Mikrostruktur Design und Degradation (1) (entfernen)
An analytical model for forecasting the temperature dependence of γ/γ' misfit in heat-resistant nickel alloys is proposed. The model accounts for the concentration dependences of the periods of crystalline lattices of the γ and γ' phases (Vegard law), thermal expansion of the γ and γ' lattices, and dissolution of the γ' phase at high temperatures. Adequacy of calculations of misfit is confirmed by comparison with the results of measurements using methods of X-ray and neutron diffraction. The model is applied for development of a nickel alloy with positive misfit.