Фазовая диаграмма системы Mg-Sr

К оглавлению: Другие диаграммы (Others phase diargams)

Mg-Sr (Magnesium-Strontium) A.A. Nayeb-Hashemi and J.B. Clark In the assessed Mg-Sr diagram, the (Mg) liquidus is taken from the work of [ 39Vos] and [47Ray], and the (Sr) liquidus is taken from the work of [47Ray]. The liquidus for the remainder of the system is taken from the data of [47Kle], [47Ray], and [73Bro]. [47Ray] placed the maximum solid solubility of Sr in Mg at ~0.03 at.% Sr. The maximum solid solubility of Mg in Sr was placed at 4.5 at.% Mg (95.5 at.% Sr), but this is uncertain and must be confirmed. In the present evaluation, experimental thermodynamic data and the assessed phase diagram data were used to derive thermodynamic functions of liquid Mg-Sr alloys. All the characteristic points of the assessed diagram were produced very closely. The calculated liquidus temperatures were within 5 C of the assessed values, except for the (Sr) liquidus temperatures, where the calculated values are in close agreement with those of [73Bro]. 39Vos: H. VosskhЃler, Metallwirtschaft, 18, 377-378 (1939) in German. 47Kle: W. Klemm and F. Dinkelocker, Z. Anorg. Allg. Chem., 255, 2-12 (1947) in German. 47Ray: J.P. Ray, M.S. thesis, Syracuse University, NY (1947). 66Pet: D.T. Peterson and R.P. Colburn, J. Phys. Chem., 70, 468-471 (1966). 73Bro: J.W. Brown, Jr., Ph.D. thesis, Syracuse University, NY (1973). 83Cha: M.W. Chase, Bull. Alloy Phase Diagrams, 4(1), 123-124 (1983). Published in Phase Diagrams of Binary Magnesium Alloys, 1988, and Bull. Alloy Phase Diagrams, 7(2), Apr 1986. Complete evaluation contains 2 figures, 7 tables, and 30 references. Special Points of the Mg-Sr System