Calculations of phase diagrams for ternary system

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Presentation transcript:

Calculations of phase diagrams for ternary system THERMO-CALC

Tasks Binary systems: Al-Si, Mg-Si, Al-Mg Temperature – composition phase diagrams Phase fraction diagram for the system Al-Mg at x(Mg)=0.2 Ternary system Al-Mg-Si Isothermal sections T= 673, 823, 843, 873 K Isoplethal sections at w(Al)=0.9, 0.85, 0.8609, 0.8 and at x(Mg)/x(Si)=2 Liquidus surface for the Al-Mg-Si system

Phase diagram of Al-Si and Mg-Si systems

Al-Mg system Temperature composition diagram Phase fraction diagram

Calculated part of liquidus surface of the Al-Mg-Si system Isotermal sections at temperatures below and above E1 2. Isoplethal sections in the composition area of e3 and for Mg/Si=2 (Mg2Si-Al)

Ternary phase diagrams System Al-Mg-Si Isothermal sections at 673, 823, 843 and 873 K T=673 K T=823 K T=873 K T=843 K

Isoplethal sections of the Al-Mg-Si system W(Al)=0.8 W(Al)=0.85 W(Al)=0.86115 W(Al)=0.9 X(Mg)-2*X(Si)=0

Isoplethal sections at w(Al)=0.8, 0.85, 0.861147 and 0.9

Isoplethal section Mg2Si-Al X(Mg)/x(Si)=2

The system of Al-Mg-Si Liquidus surface Calculated liquidus surface Enlarged portion of liquidus surface