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Metallurgist
Published in: Metallurgist 9-10/2016

23-01-2016

Phase Composition of Light-Weight Steels and Alloys Based on the Fe–Mn–Al–C System

Published in: Metallurgist | Issue 9-10/2016

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Abstract

A Thermo-Calc program is used to calculate isothermal and polythermal sections of diagrams and phase composition for a series of alloys of the Fe–Mn–Al–Si–Mo–C–N system. Microstructure of these alloys is studied after quenching, hot and warm deformation, and ageing at 550°C. It is established that the phase equilibrium diagram of the Fe–Mn–Al–C system may be used for predicting alloy structure for this system after different forms of treatment. Alloys with a single-phase γ-region in the range 1000–1200°C and containing 20% or more Mn should contain more than 1.5% C with an Al content of 7.5% and more than 2% C with a 9% aluminum content.
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Literature
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H. Kim, D. W. Suh, and N. J. Kim, “Fe–Al–Mn–C lightweight structural alloys: a review on the microstructures and mechanical properties,” Sci. Technol. Adv. Mater., 14, 014205 (2013).CrossRef
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M. Witkowska, A. Zielińska-Lipiec, J. Kowalska, and W. Ratuszek, “Microstructural changes in a high-manganese austenitic Fe–Mn–Al–C steel,” Arch. Metal. Mater., 59, No. 3, 971–975 (2014).
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D. Raabe, H. Springer, I. Gutierrez-Urrutia, et al., “Alloy design, combinatorial synthesis, and microstructure-property relations for low-density Fe–Mn–Al–C austenitic steels,” JOM, 66, No. 9, 1845–1856 (2014).CrossRef
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A. V. Bronz, D. E. Kaputkina, A. M. Kaoputkina, et al., “Effect of chemical composition on crystal lattice and physical properties of iron-manganese alloys with a high aluminum content,” МiТОМ, No. 12, 11–15 (2013).
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A. V. Bronz, A. M. Kaputkina, V. E. Kindop, et al., “Change in structure during thermal and thermomechanical treatment of cast high-aluminum-manganese alloys of iron,” Izv. Vyssh. Uchebn. Zaved., Chern Met., No. 9, 38–42 (2012).
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Metadata
Title
Phase Composition of Light-Weight Steels and Alloys Based on the Fe–Mn–Al–C System
Publication date
23-01-2016
Published in
Metallurgist / Issue 9-10/2016
Print ISSN: 0026-0894
Electronic ISSN: 1573-8892
DOI
https://doi.org/10.1007/s11015-016-0191-0

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