Conclusions
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1.
As the manganese content is increased from 0.6 to 3.4% in binary iron-manganese alloys of high purity the ultimate and yield strengths increase. The plasticity at temperatures from −80 to +20°C and at −196°C also increases with the manganese content up to 2.14%.
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2.
As the manganese content of binary iron-mangaese alloys is increased from 0.6 to 2.14% the cold brittleness threshold drops from −40 to −80°C.
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3.
When the manganese content is increased to 3.4% the cold brittleness threshold rises, which is due to the formation martensite transformation products in the structure.
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Literature cited
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Additional information
TsNIIChERMET. Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 3, pp. 68–70, March, 1969.
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Matrosov, Y.I., Krasnykh, V.I. Effect of manganese on the susceptibility ofα-iron to brittle fracture. Met Sci Heat Treat 11, 237–239 (1969). https://doi.org/10.1007/BF00658745
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DOI: https://doi.org/10.1007/BF00658745