The phase composition, the hardness, the mechanical properties at room temperature, and the resistance to hot (950 – 1000°C) and warm (550°C) deformation are studied for cast deformable “light” ferritic and austenitic steels of the Fe – (12 – 25)% Mn – (0 – 15)% Al – (0 – 2)% C system alloyed additionally with about 5% Ni. The high-aluminum high-manganese low-carbon and carbonless ferritic steels at a temperature of about 0.5T melt have a specific strength close to that of the austenitic steels and may be used as weldable scale-resistant and wear-resistant materials. The high-carbon Fe – (20 – 24)% Mn – (5 – 9)% Al – 5% Ni – 1.5% C austenitic steels may be applied as light high-strength materials operating at cryogenic temperatures after a solution treatment and as scale- and heat-resistant materials in an aged condition.
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Notes
These samples were melted at the Czestochowa University of Technology, Poland.
The results were obtained with participation of A. V. Bronz.
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The work has been performed with financial support of the Ministry of Education and Science of the Russian Federation within the design part of the State Assignment in the Sphere of Scientific Activities, No. 11.1943.2014/K.
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Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 9, pp. 3 – 8, September, 2016.
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Kaputkina, L.M., Svyazhin, A.G., Smarygina, I.V. et al. Strength of “Light” Ferritic and Austenitic Steels Based on the Fe – Mn – Al – C System. Met Sci Heat Treat 58, 515–519 (2017). https://doi.org/10.1007/s11041-017-0046-8
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DOI: https://doi.org/10.1007/s11041-017-0046-8