Experimental and thermodynamic study of the Mg-Sn-Ca-Sr quaternary system: Part I-Mg-Sn-Ca ternary system. (September 2017)

• Record Type: Journal Article
• Authors: Wang, Jian; Han, Jiajian; Du, Beining; Huang, Yixiong; Sheng, Liyuan; Rao, Weifeng; Wang, Cuiping; Liu, Xingjun
• Is Part Of: Calphad. Volume 58(2017)
• Page Start: 6
• Page End: 16
• Publication Date: 2017-09
• Subjects: Mg-Ca-Sn -- Ca-Sn -- Phase diagram -- Thermodynamic modeling -- SEM; 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.2017.03.008
• Languages: English
• ISSNs: 0364-5916

Abstract

Abstract: Four key samples of the Mg-Ca-Sn ternary system in the Mg-rich region at 415 and 350 °C have been determined using the Scanning Electron Microscopy (SEM) equipped with Energy Dispersive X-Ray Spectrometry (EDS). The existence of the CaMgSn ternary compound was confirmed in these two isothermal sections. Thermodynamic optimizations of the Ca-Sn binary system and Mg-Ca-Sn ternary system were carried out using the CALPHAD (Cal culation ofPha seD iagrams) technique. The Modified Quasichemical Model (MQM) was used for the liquid solution which exhibits a high degree of short-range ordering behavior in the liquid solution. The solid phases are modeled with the Compound Energy Formalism (CEF). Finally, a self-consistent thermodynamic database of Mg-Ca-Sn ternary system has been constructed in the present work, which would provide an efficient and convenient way to study and develop the new Mg-Sn based alloys.