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Experimental investigation and thermodynamic assessment of phase equilibria in the Cr-Re-Ru ternary system
Calphad ( IF 2.4 ) Pub Date : 2021-06-09 , DOI: 10.1016/j.calphad.2021.102289
C.P. Wang , H. Ren , H. Liu , L.L. Li , S.Y. Yang , J.J. Han , Y. Lu , Y.H. Guo , Y.X. Huang , X.J. Liu

The phase equilibria of the Cr-Re-Ru ternary system at 1100 °C and 1200 °C have been experimentally investigated using electron probe microanalyzer and X-ray diffraction. The σ1-Cr2Re3 and σ2-Cr2Ru phases with the same D8b crystal structure do not form a continuous intermetallic compound phase at 1100 °C and 1200 °C in the Cr-Re-Ru ternary system confirmed by experimental results. According to the experimental results in this work, the Cr-Re-Ru ternary system has been assessed by means of the CALPHAD (CALculation of PHAse Diagrams) method. The calculated isothermal section at 1400 °C shows that the two independent phases σ1-Cr2Re3 and σ2-Cr2Ru are replaced by the continuous intermetallic compound σ. The current established thermodynamic database of the Cr-Re-Ru ternary system may provide the essential information, and support for the thermodynamic assessment of multicomponent system and the development of Ni-based superalloys.



中文翻译:

Cr-Re-Ru三元体系相平衡的实验研究和热力学评估

已使用电子探针微量分析仪和 X 射线衍射对 1100°C 和 1200°C 下 Cr-Re-Ru 三元系统的相平衡进行了实验研究。具有相同D8 b晶体结构的σ 1 -Cr 2 Re 3和σ 2 -Cr 2 Ru相在Cr-Re-Ru三元体系中在1100℃和1200℃不形成连续的金属间化合物相实验结果。根据这项工作的实验结果,Cr-Re-Ru 三元体系已通过 CALPHAD(PHAse Diagrams 计算)方法进行评估。在 1400 °C 计算的等温截面表明,两个独立的相 σ 1 -Cr 2 Re3和σ 2 -Cr 2 Ru被连续金属间化合物σ代替。目前已建立的Cr-Re-Ru三元体系热力学数据库可以为多组分体系的热力学评估和镍基高温合金的开发提供必要的信息和支持。

更新日期:2021-06-09
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