Critical assessment and thermodynamic modeling of the binary Mg–Zn, Ca–Zn and ternary Mg–Ca–Zn systems

Evolution of Mechanical Twinning during Cyclic Deformation of Mg-Zn-Ca Alloys

“…The phase formation and microstructure evolution during solidification, solution treatment and ageing of an Mg-Ca-Zn alloy have been predicted qualitatively and quantitatively based on computational thermodynamics by many authors, e.g., [36][37][38][39]. Wasiur-Rahman and Medraj [39] performed the critical assessment of the experimental data accumulated to date in line with thermodynamic modeling of phase equilibria to determine the most likely description of this system and to eliminate the self-contradicting experimental observations. The consideration of the two ternary compounds reported by Clark-Ca 2 Mg 6 Zn 3 and Ca 2 Mg 5 Zn 13 -resulted in the best consistency with the experimental results reported in the literature, e.g., [33].…”

Experimental study of the Ca–Mg–Zn system using diffusion couples and key alloys

“…• C based on the preliminary thermodynamic model of Wasiur-Rahman and Medraj [17]. The starting materials were Mg (purity 99.98%), Zn (99.99%) ingots and Ca (99%) supplied by Alfa Aesar.…”

“…Paris [7] reported a ternary compound with the composition Ca 2 Mg 5 Zn 5 , as shown in figure 1. Using metallography and powder x-ray diffraction (XRD), • C, redrawn from the database of Wasiur-Rahman and Medraj [17], including comparison of the ternary compounds reported in [7][8][9][10][11][12][13][14].…”

“…Brubaker and Liu [16] and Wasiur-Rahman and Medraj [17] modeled the Ca-Mg-Zn ternary phase diagram and included two ternary compounds. They did not consider the ternary homogeneity ranges.…”

“…The thermodynamic model proposed by Brubaker and Liu [16] was based on the random mixing of atoms in the liquid phase and thus cannot properly deal with short-range ordering. Wasiur-Rahman and Medraj reanalyzed this system using a modified quasichemical model [17], and the isotherm at 335…”