Abstract
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, FeSn2, Fe3Sn2, 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 Fe3Sn2 at 700 °C is 10.7 and 15.6 at%, respectively. At 850 °C, the existence of binary compound Fe5Sn3 phase was confirmed, and a three-phase equilibria of Fe5Sn3, α-(Fe,Cr), and liquid was determined. The maximum solubility of Cr in Fe5Sn3 at 850 °C is 5.8 at%.
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Acknowledgments
The authors gratefully acknowledge financial support from the National Science Foundation of China (Grant Nos. 51671036, 51871030) and the Priority Academic Program Development of Jiangsu Higher Education Institutions. This work is also funded by the Education Department of Jiangsu Province (17KJA430001) and Qing Lan Project.
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Zhou, Z., Liu, Y., Wu, C. et al. Experimental Investigation of the Phase Relationship of the Fe-Cr-Sn System. J. Phase Equilib. Diffus. 41, 234–242 (2020). https://doi.org/10.1007/s11669-020-00808-2
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DOI: https://doi.org/10.1007/s11669-020-00808-2