Essential Magnesium Alloys Binary Phase Diagrams and Their Thermochemical Data

Table 29

Optimized model parameters for the Mg-Cu system [66].

Phase	Parameters; Δ𝑔^0 and ^0𝐿 in J/mole
Liquid	Z^MgMgCu=4,Z^CuCuMg=2; Δ𝑔^0MgCu=−12975.95; Δ𝑔^10MgCu=−6153.13+1.26𝑇; Δ𝑔^01MgCu=−13528.50
Mg-hcp	^0𝐿^Mg-hcp=8371.60
Cu-fcc	^0𝐿^Cu-fcc=−21923.39+5.37𝑇
Mg2Cu	Δ𝐺𝑓=−28620.0+0.03𝑇
MgCu2; (Mg%, Cu); (Cu%, Mg)2	^0𝐺^MgCu2Cu:Cu=16743.20; ^0𝐺^MgCu2Mg:Cu=−37684.26; ^0𝐺^MgCu2Cu:Mg=0; ^0𝐺^MgCu2Mg:Mg=6278.7; ^0𝐿^MgCu2Mg,Cu:Cu = ^0𝐿^MgCu2Mg,Cu:Mg=13011.35; ^0𝐿^MgCu2Cu:Mg,Cu = ^0𝐿^MgCu2Mg:Mg,Cu=6599.45;