The phase relationships of the Ce-Pr-Fe ternary system at 600 °C were experimentally investigated using equilibrated alloys and diffusion junction samples with the use of electron probe microanalysis, x-ray diffraction, and scanning electron microscopy. The isothermal section of the Ce-Pr-Fe system at 600 °C consists of 7 single-phase, 11 two-phase, and 5 three-phase regions. No ternary compound was found. The PrFe 2 phase was observed in both ternary alloys and diffusion samples at normal pressure. The solid solubility of Ce in PrFe 2 and Pr 2 Fe 17 is 1.76 and 3.75 at.%, respectively. The solid solubility of Pr in CeFe 2 and Ce 2 Fe 17 is 13.21 and 0.77 at.%, respectively.

中文翻译：

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Ce-Pr-Fe 系统中 600 °C 的相平衡

使用平衡合金和扩散结样品，并使用电子探针微量分析、X 射线衍射和扫描电子显微镜，通过实验研究了 Ce-Pr-Fe 三元系统在 600 °C 时的相关系。Ce-Pr-Fe 系统在 600 °C 的等温截面由 7 个单相区、11 个两相区和 5 个三相区组成。未发现三元化合物。在常压下，在三元合金和扩散样品中都观察到了 PrFe 2 相。Ce在PrFe 2 和Pr 2 Fe 17 中的固溶度分别为1.76和3.75原子％。Pr在CeFe 2 和Ce 2 Fe 17 中的固溶度分别为13.21和0.77原子％。