Thermodynamic assessments of the Mn-Sm and Mn-Ho systems
Thermodynamic assessments of the Mn-Sm and Mn-Ho systems
复制标题
DOI：
10.1016/j.jallcom.2009.03.121
复制
发表时间：
2009-07
影响因子：
6.2
通讯作者：
C. P. Wang;Hua Zhang;San-yuan Wang;Z. G. Lin;X. J. Liu;A. Tang;F. Pan
中科院分区：
文献类型：
--
作者：
C. P. Wang;Hua Zhang;San-yuan Wang;Z. G. Lin;X. J. Liu;A. Tang;F. Pan
利用相图计算（CALPHAD）方法，对Mn-Sm和Mn-Ho二元系的热力学性质和相平衡进行了研究。采用Redlich-Kister公式对液相、面心立方相、体心立方相、六方立方相、立方相、立方相的吉布斯自由能进行了亚规则或规则溶液模型的模拟，对金属间化合物Mn_（23）Sm_6、Mn_2Sm、HoMn_2、Ho_6Mn_（23）、HoMn_（12）的吉布斯自由能进行了亚晶格模型的模拟。计算结果与实验数据吻合较好。
By using the calculation of phase diagrams (CALPHAD) method, the thermodynamic assessments of the Mn–Sm and Mn–Ho systems were carried out based on the experimental data including thermodynamic properties and phase equilibria. Gibbs free energy of the solution phase (liquid, fcc, bcc, hcp, cbcc, rhombohedral and cub) were modeled by the subregular or regular solution model with the Redlich–Kister formula, and those of the intermetallic compounds (Mn23Sm6, Mn2Sm, HoMn2, Ho6Mn23, HoMn12) were described by the sublattice model. An agreement between the present calculated results and experimental data is obtained.