Calculation of Liquidus Temperature for Aluminum and Magnesium Alloys Applying Method of Equivalency

Table 1

Polynomial coefficients for the Si^𝑋𝑖_EQ and Al^𝑋𝑖_EQ function ((4a) and (4b)).

Elements	Coefficients for the Si^𝑋𝑖EQ			Coefficients for the Al^𝑋𝑖EQ
𝑋𝑖	𝑎𝑜	𝑏𝑜	𝑐𝑜	𝑎𝑜	𝑏𝑜	𝑐𝑜
Si	1.0	0.0	0.0	0.0	0.5111	−0.1458
Al				1.0	0.0	0.0
Cu	0.0	0.35	−0.027	0.0	−0.4161	0.0069
Mg	0.0	0.0258	0.0088
Zn	0.0	0.1227	−0.0002	0.0	−0.4983	0.0047
Ni	0.0	0.5644	−0.0285
Mn	0.0	0.8221	−0.0349
Fe	0.0	0.6495	0.0003
Y				0.0	−0.5695	0.0040