A thermodynamic assessment of the Mg–Sn–Sb ternary system. (December 2021)

• Record Type: Journal Article
• Authors: Zhang, Jiyuan; Wang, Jun; Yuan, Yuan
• Is Part Of: Calphad. Volume 75(2021)
• Publication Date: 2021-12
• Subjects: Mg-Sn-Sb ternary System -- Phase diagram -- Thermodynamic assessment; Phase diagrams -- Data processing -- Periodicals; Thermochemistry -- Data processing -- Periodicals; Diagrammes de phases -- Informatique -- Périodiques; Thermochimie -- Informatique -- Périodiques; Thermodynamica; Electronic journals; 541.363
• DOI: 10.1016/j.calphad.2021.102361
• Languages: English
• ISSNs: 0364-5916

Abstract

Abstract: Magnesium-tin-antimony (Mg–Sn–Sb) system is a promising system for developing high-creep resistance magnesium alloy and the alloy-type anode of magnesium recharge battery. Herein, the thermodynamic assessment of Mg–Sn–Sb ternary system was carried out using the CALculaiton of PHAse Diagram (CALPHAD) approach based on available literature data. The liquid phase was described via the associated model with associates Mg3 Sb2 and Mg2 Sn, and the compounds were described using the sublattice model. The consistency of the calculated phase equilibria relations and thermochemical properties with the available experimental data of Mg–Sn–Sb ternary system is presented. The thermodynamic descriptions of Mg–Sb, Sn–Sb binary systems and Mg–Sn–Sb ternary system assessed in this work provide a thermodynamic basis for the alloy design of magnesium alloy. Highlights: Liquid phase is described with associates for its short-range-ordering behavior. Mg–Sb and Sn–Sb systems have been re-optimized. Thermodynamic description of Mg–Sn–Sb ternary system is provided. The calculated isothermal and vertical sections agree well with literature data.