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Phase separation in Fe-Mn (20–40 wt % Mn) alloys

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Abstract

The structural changes produced in the Fe-40Mn and Fe-20Mn alloys by long-term isothermal heat treatment at temperatures from 600 to 1200°C are studied using x-ray diffraction analysis, transmission electron microscopy, and hardness tests. The results provide evidence, direct for Fe-40Mn and indirect for Fe-20Mn, that the Fe-Mn solid solution in these alloys undergoes phase separation in the temperature range studied. The conclusion is made that the solid-solution region in the Fe-Mn system, as well as in a number of other systems, is in fact a phase-separation region.

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Authors and Affiliations

  1. Physicotechnical Institute, Udmurt Scientific Center, Ural Division, Russian Academy of Sciences, ul. Kirova 132, Izhevsk, 426000, Russia

    Yu. I. Ustinovshchikov, B. E. Pushkarev & I. V. Sapegina

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  1. Yu. I. Ustinovshchikov
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  2. B. E. Pushkarev
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  3. I. V. Sapegina
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Original Russian Text © Yu.I. Ustinovshchikov, B.E. Pushkarev, I.V. Sapegina, 2006, published in Neorganicheskie Materialy, 2006, Vol. 42, No. 3, pp. 312–318.

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Ustinovshchikov, Y.I., Pushkarev, B.E. & Sapegina, I.V. Phase separation in Fe-Mn (20–40 wt % Mn) alloys. Inorg Mater 42, 269–274 (2006). https://doi.org/10.1134/S0020168506030113

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  • DOI: https://doi.org/10.1134/S0020168506030113

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