Phase Equilibria in AI-Ca-Li System： a Thermodynamic Description

作     者：WANG Kun YIN Hui-qin CHENG Jin-hui ZUO Yong XIE Lei-dong 

作者机构：University of Chinese Academy of Sciences Beijing 100049 P.R.China 

出 版 物：《Chemical Research in Chinese Universities》 (高等学校化学研究（英文版）)

年 卷 期：2013年第29卷第6期

页      面：1167-1172页

核心收录：

学科分类：080701[工学-工程热物理] 08[工学] 0807[工学-动力工程及工程热物理] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

主　　题：Phase diagram Thermodynamics Alloy 

摘      要：Relations of equilibrium phases in the Al-Ca-Li system were calculated by means of the CALPHAD （calculation of phase diagram） method. The reported thermodynamic model parameters for all the constituent binary systems were directly used in the present calculation. A novel thermodynamic description for the three ternary intermetallic compounds（τ1 τ2 and τ3） was made on the basis of experimental phase equilibria in the Al-Ca-Li system. Comparison between the calculated and experimental phase equilibria shows that we have successfully derived a set of self-consistent thermodynamic parameters for the Al-Ca-Li system. These parameters were then used for the prediction of the selected isothermal and isopleth sections and projected liquidus surface of this ternary system over the entire composition range.