Experimental investigation and thermodynamic calculation of the phase equilibria in the Co–Nb–Ta ternary system
Experimental investigation and thermodynamic calculation of the phase equilibria in the Co–Nb–Ta ternary system
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DOI：
10.1016/j.jallcom.2010.10.058
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发表时间：
2011-02
影响因子：
6.2
通讯作者：
L. Zhou;Cheng Wang;Yanping Yu;X. J. Liu;Hibiki Chinen;T. Omori;I. Ohnuma;R. Kainuma;K. Ishida
中科院分区：
文献类型：
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作者：
L. Zhou;Cheng Wang;Yanping Yu;X. J. Liu;Hibiki Chinen;T. Omori;I. Ohnuma;R. Kainuma;K. Ishida
用电子探针(EPMA)和X射线衍射仪(X射线衍射仪)测定了Co-Nb-Ta三元系平衡合金在900℃、1000℃、1100℃、1200℃、1300℃的等温截面。在实验数据的基础上，用CALPHAD(相图计算)方法对Co-Nb-Ta系的相平衡进行了热力学计算，得到了一组一致的热力学参数，使计算结果与实验数据吻合较好。
The isothermal sections of the Co–Nb–Ta ternary system at 900°C, 1000°C, 1100°C, 1200°C, 1300°C have been experimentally determined by electron probe microanalysis (EPMA) and X-ray diffraction (XRD) techniques on the equilibrated alloys. On the basis of the experimental data investigated in the present work, the phase equilibria in the Co–Nb–Ta system has been thermodynamically assessed by using CALPHAD (CALculation of PHAse Diagrams) method, and a consistent set of the thermodynamic parameters leading to reasonable agreement between the calculated results and experimental data was obtained.