In this work, 700 and 850 °C isothermal sections of the Fe-Cr-Sn ternary system were experimentally determined by means of optical microscopy, scanning electron microscopy combined with energy dispersive spectrometry, and X-ray diffraction. At 700 °C, the existence of four binary compounds, FeSn, FeSn 2 , Fe 3 Sn 2 , and σ-FeCr were confirmed. Four three-phase regions were identified in the isothermal section of this system at 700 °C, and the maximum solubility of Cr in FeSn and Fe 3 Sn 2 at 700 °C is 10.7 and 15.6 at%, respectively. At 850 °C, the existence of binary compound Fe 5 Sn 3 phase was confirmed, and a three-phase equilibria of Fe 5 Sn 3 , α-(Fe,Cr), and liquid was determined. The maximum solubility of Cr in Fe 5 Sn 3 at 850 °C is 5.8 at%.

中文翻译：

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Fe-Cr-Sn体系相关系的实验研究

在这项工作中，Fe-Cr-Sn 三元体系的 700 和 850 °C 等温截面通过光学显微镜、扫描电子显微镜结合能谱仪和 X 射线衍射实验确定。在 700 °C 时，确认存在 FeSn、FeSn 2 、Fe 3 Sn 2 和 σ-FeCr 四种二元化合物。在该系统的 700 °C 等温截面中确定了四个三相区，Cr 在 FeSn 和 Fe 3 Sn 2 中的最大溶解度在 700 °C 分别为 10.7 和 15.6 at%。在 850 °C 时，证实了二元化合物 Fe 5 Sn 3 相的存在，并确定了 Fe 5 Sn 3 、α-(Fe,Cr) 和液体的三相平衡。在 850 °C 时，Cr 在 Fe 5 Sn 3 中的最大溶解度为 5.8 at%。