Optimization of the Al–Cr–Zn system at 460 C

The Al–Cr–Zn ternary system is assessed by the CALPHAD method. The solution phases are modelled using the Redlich–Kister formalism. The ternary intermetallic compounds are described by using the sublattice model. The main intermetallic compound s1, of the Al–Cr–Zn system, was treated as d1-FeZn9 solid phase in accordance with its isotype structure. A comparison with experimental phase diagram is also presented.