Conclusions
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1.
Mechanisms for formation of ε-and α-phases for cast and powder Fe−Mn alloys are similar.
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2.
In contrast to cast alloys the boundaries for existence of α-and ε-phases in powder alloys move in the direction of greater manganese content.
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3.
The region for existence of α-phase in powder alloys expands, i.e., residual α-phase (5–10%) is observed in alloys with 20–23% Mn.
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4.
The boundary of the γ+ε-and γ-region in powder alloys moves in the direction of greater manganese content (up to 35%); the maximum amount of ε-martensite (60%) forms in alloy with 21% Mn.
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Additional information
I. P. Bardin Central Scientific-Research Institute of Ferrous Metallurgy, Moscow. Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 2, pp. 23–26, February, 1986.
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Volynova, T.F., Medov, I.B. Phase transformation in powder Fe−Mn alloys. Met Sci Heat Treat 28, 107–111 (1986). https://doi.org/10.1007/BF00717530
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DOI: https://doi.org/10.1007/BF00717530