Essential Magnesium Alloys Binary Phase Diagrams and Their Thermochemical Data

Table 15

Enthalpy and entropy of formation of the Mg-Sr intermetallic compounds.

Compound	Enthalpy of formation (kJ/mole·atom)	Entropy of formation (J/mole·atom·K)	Reference
Mg2Sr	−7.12		[77] Exp.
	−10.62		[158] Cal. (F.P.)
	−10.3	−1.88	[41] Cal. (Calphad)
	−11.34		[157] Cal. (F.P)
Mg38Sr9	−6.27		[158] Cal. (F.P.)
	−6.74		[157] Cal. (F.P)
	−6.04	−0.25	[41] Cal. (Calphad)
Mg23Sr6	−7.74		[158] Cal. (F.P.)
	−8.52		[157] Cal. (F.P)
	−6.50	−0.39	[41] Cal. (Calphad)
Mg17Sr2	−4.80		[158] Cal. (F.P.)
	−5.60		[157] Cal. (F.P)
	−3.63	0.01	[41] Cal. (Calphad)