Journal of Phase Equilibria and Diffusion

, Volume 39, Issue 3, pp 280–289 | Cite as

Experimental Investigation of the Isothermal Section of the Fe-Mn-Sn System at 723 K

  • Ya Liu
  • Bin Zhou
  • Changjun Wu
  • Haoping Peng
  • Jianhua Wang
  • Xuping Su


Phase relationships in the Fe-Mn-Sn ternary system at 723 K were investigated using equilibrated approach. More than 40 alloys were prepared by arc-melting method and examined by x-ray powder diffraction, scanning electron microscopy and energy dispersive spectroscopic. The existence of five binary compounds FeSn, FeSn2, MnSn2, Mn3Sn2, Mn3Sn and one intermediate solid solution γ(Fe, Mn) have been confirmed in this system. FeSn2 and MnSn2 form continuous solid solution (Fe1−x, Mn x )Sn2 (0 ≤ X ≤ 1) and the lattice parameters of (Fe, Mn)Sn2 reduced linearly with increasing of Fe content. At 723 K, the maximum solid solubilities of Fe in αMn, βMn, Mn3Sn, Mn3Sn2 phases and Mn in FeSn, αFe are about 25, 34.8, 37.3, 46.2 at.% Fe and 26.8, 5.5 at.% Mn respectively. The solid solubilities of γ(Fe, Mn) ranged from 42.1 to 78.1 at.% Fe and the limited solubility of Sn is around 3 at.%. The isothermal section consists of 6 three-phase regions, 13 two-phase regions and 9 single-phase regions. No ternary compound was found at 723 K in this system.


Fe-Mn-Sn system intermetallics isothermal section phase equilibria 



Financial supports from the National Science Foundation of China (Grant Nos. 51471037 and 51671036) and projects funded by the Priority Academic Program Development of Jiangsu higher education institutions and by the Education Department of Jiangsu Province (17KJA430001) are greatly acknowledged. This work has also been sponsored by Qing Lan Project.


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Copyright information

© ASM International 2018

Authors and Affiliations

  • Ya Liu
    • 1
    • 2
  • Bin Zhou
    • 1
  • Changjun Wu
    • 1
  • Haoping Peng
    • 1
  • Jianhua Wang
    • 1
    • 3
  • Xuping Su
    • 1
    • 2
  1. 1.Key Laboratory of Materials Surface Science and Technology of Jiangsu ProvinceChangzhou UniversityChangzhouChina
  2. 2.Jiangsu Collaborative Innovation Center of Photovoltaic Science and EngineeringChangzhou UniversityChangzhouChina
  3. 3.National Experimental Teaching Demonstration Center of Materials Science and EngineeringChangzhou UniversityChangzhouChina

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